Hey, so something worth knowing is a benefit for the nonprofit organization that makes Crash Course and SciShow Complexly. It's September 16th, 2026 in Los Angeles, California at the Wilshire Ebell Theater. Please join us. It's going to be incredible.
Friends have complexity like Mark Rober, Katie Max, Simone Yech, and more will share inspiring talks about what makes them hopeful and join Hank Green on stage for fun, interactive discussions. Complexly has been creating free educational content like SciShow and PBS Eons and Crash Course in Bizarre Beasts for nearly 15 years and 6 billion views. But this year, we've become a 501c3 nonprofit and we're doing something worth knowing as an in-person event that benefits Complexly and our impactful educational media. It's the first ever Complexly in-person event and it's a fundraiser to support our mission of inspiring curiosity and lowering barriers to knowledge building because curiosity builds understanding and understanding builds a better world.
Tickets go on sale to the general public June 30th at somethingworthknowing.com. So come build a better world with us on September 16th and experience something worth knowing you can get your ticket at Complexly.info slash something. And welcome to Dear Hank and John. Or as I prefer to think of it Dear John and Hank.
It's a podcast where two brothers answer your questions. Give me a BBC Vice for bringing you all the weeks news from both Mars and AFC Wimbledon. John, the other day I came out and my bicycle was still locked to the thing but the tires had been removed from the bicycle. You know how this can happen?
Sometimes they're like, well we can't steal the whole bike might as well steal the tires. Sure. And now I'm working tirelessly to try and catch the guy who did it. I don't know.
Wait, did this really happen? No. So in addition to inventing a crime which I will remind you is itself a crime. You committed a further crime by not even really having a punchline.
I did. I'm working tirelessly because I don't have tires. But even as you said it, you pulled your own punch. I already dislike this one.
I'm tired. I am tired in one way which is that daylight savings happen this morning. And so I don't have it. That spark is gone at the moment.
So I want someone to steal my tires so that I can not be tired anymore. Is that good? Did I get something? No, that's also bad.
But I will say I'm glad that you brought up daylight savings time, Hank, because the Alabama Senator Tommy Tuberville, best known for his previous job, which was the head coach of the Auburn University College football team. I'm not making this up. United States Senator Tommy Tuberville has proposed a law that would enshrine the daylight savings time time as the time all year round. And this is a very notable moment in American history, Hank, because it marks the first time that Tommy Tuberville and I have ever agreed about anything.
They disagreed about Auburn football. And then we disagreed quite extensively about politics. A lot of other things. But suddenly I find myself team Tuberville.
Well, I wouldn't go that far, John. But it is important to note that people can agree on some things while disagreeing deeply on other things. And one of the great things to agree on is that this whole thing is a bad idea. I tweeted about how confused I was about what I should be doing to try and get my son on the right schedule before this happened.
I completely failed and we had a very bad morning this morning. But we somebody asked in response to that, which would you, what do you want though? Do you want to be on daylight savings all the time or be on not daylight savings all the time? And I was like, I just wanted to stop changing.
Whenever we are on, when we pass the laws, fine, like, don't make this hard. This is why making things happen is so difficult because we all want to fix the problem. But we all disagree on how to fix the problem. But in this case, no, there's two choices.
All solutions are better than the current solution. They were equally good. Yeah. Which is the only bad.
So whatever everyone else thinks is what I want. The only bad outcome here is some kind of weird compromise outcome where instead of changing the clock twice a year, we start changing it like 12 times a year. Yeah. Where, you know, like the bill makes its way through committee and it gets some amendments.
So then it passes and suddenly we're like, Oh, man, yeah, it turns out every 13th, no matter what, we have to change the clocks. Yeah. But into a half hour. There's something very where it is to a half hour.
And I'm just like, you cannot, you cannot do this. It's unjust. It is truly is. I want to stick with time zones.
I don't want to get rid of those. We should still have time zones. Look, time is malleable. But it's not that malleable.
I think the clocks need to stop being abused. I agree. I don't think that it's the biggest problem the world faces. No, but it's the easiest one to solve.
Exactly. The easiest one to solve is to stop minting the American penny. The second easiest one to solve is to stop changing the clocks for no reason. I think now that the pandemic has gotten us pretty cashless, the beginning of the penny is going to get a lot easier.
It's just kind of going to happen. Yeah. Even if the mint doesn't enshrine it as law, people are just going to sort of mask. Stasking for them.
Yeah. This is how a lot of change actually happens. But John, do you want to do some questions from our listeners? The whole podcast.
And if you don't mind, I'd like to begin with our new segment this week in frozen cold hot takes, where Hank and I analyze the issue of the moment a few weeks too late. This question came from Grace, but it could have come from any of the several hundred people who sent us the exact same question. Dear John and Hank, do you think that there are more wheels or doors in the world? Grace.
I haven't think about this a lot, John. And what this has outlined is that, of course, it depends greatly on how expansive you want to be with your definitions. Not that greatly. No, it doesn't really.
But go on. So, so almost always it's wheels, but it becomes doors if and when you decide that an ion channel in a cell is a door. And some ion channels are very door-like where they just have like a little flap. It's all chemicals, a little flap that lets things in and then it closes to stop letting things in.
And if that counts as a door, then it is doors. And there's one other way that it can be doors, John. And I want you, but do you want to do you want to make your wheels case first? I mean, the idea that ions, I mean, that's ludicrous.
The idea that doors within cells count as doors is ludicrous unless we are referring to prisons. Like doors are doors we all know what a door is and we all know what a wheel is. And I understand that we can debate whether a hot dog is a sandwich, but we cannot debate whether the question referred to doors, like the kind that humans open or even that dogs open. Yeah.
At any rate, the answer is wheels. And what this whole debate has shown me, for those of you not on the internet, has been a big debate over the last couple weeks about whether there are more wheels or doors in the world, it is not close. There are more wheels, even in the places that people would cite as examples of why there might be more doors in the world. Like lots of people are like, what about hotels or hotels?
Hotels have way more wheels than they do doors, Hank. They have the wheelie suitcases. They have the wheels of the housekeeping cards. They have the wheels of the luggage cards.
There's the wheels that are inside every drawer in every hotel room that will help those drawers open and close. So even in a purportedly door-centric environment, there are still more wheels. There are lots of wheels. It's very, the process is interesting to me.
You ask people in the first thing to think of cars, like that's where most of the wheels are, which is just not true at all. There are way more, but even if it were true, there would still be more wheels than doors because there are a lot of two door cars and there are no two wheeled cars. Those are called motorcycles and they have no doors. Well, this is the other thing.
They're more bicycle wheels than car wheels. Of course there are. And you know what bicycles don't have doors. I did some research because of this question and found out that only 20% of people in the world have a car and that made me feel much more, what?
That makes me feel terrible. Why? That you have a car? Yeah.
We have two of them. Yeah. Well, it just made me think, wow, I misunderstand how the world works, which I always do. And so it was a stat that gave me a little bit of insight.
John, do you want to know how we can make it doors? How could we make it doors? We just count the number of doors that are imaginary, that are imagined by human minds as doors. So if I just imagine a door and can I on my own by imagining an infinite number of doors, make it doors?
Well, no, because I'm over here imagining an infinite number of wheels. Yeah, but you're going to sleep sometime and I'm going to catch you. No, okay. So you can make it a tie, right?
This is how you make it a tie. You make it a tie by having an infinite number of doors and an infinite number of wheels, including like the wheels of time and the doors of perception, right? Yeah. That's how it becomes a tie because that's accountable infinity.
It's the same size as another countable infinity. But that's not the question. Are there more doors or wheels in the world here on earth? And the answer is wheels.
It's also possible that in some distant galaxy, there is this some exit planet that's called planet Doropolis and there's no but doors on the whole dang planet, but like, not a relevant issue to this question. Yeah, I like all the people are doors and all their pets are doors and they're eyes are doors and they have a door where their poop comes out of and fingers are little doors. They're very creepy place. Just like they have doors in WD-40.
That's it. Right, right, right. Whereas we have like a high dependency on liquid natural gas. They're like, Oh, God, we need a lot of WD-40 to make this joint work.
We need some more, we need some more lubrication. I imagine them like coming to earth desperate low on resources barely able to crack themselves open anymore landing on earth and like being just saying like, we need, we need lube. I thought I was ready. I thought that I predicted the joke accurately and I haven't.
So this is what I love about coal hot takes is that you think there's nothing left to say. But there is. Yeah, well, my man, I have to tell you, Hank, it just showed me again that if you have an issue and it doesn't matter what the issue is, it doesn't matter how ludicrous the issue is, if you have an issue that it is possible to take two sides of a sizable number of people will take both sides, even if one side is obviously wrong. Yeah, this, yeah, well, you, you side it up and, Oh, God, we love to take sides right now, especially on the internet.
John, I got another side taking issue. I love an opportunity for this is from Ashley who asks here, and John, my friend and now we're recently at a restaurant that is themed around space aliens. We use a drawing of an alien on the wall and you have two teeth, one on top, one on bottom. This raised the question, why do we have individual teeth instead of just one big wide tooth on the top and bottom of our mouths?
Is there an advantage to having small individual teeth or would having two very wide teeth actually be better for us? Asteroids and aliens, Ashley, to book, I talked about this for a solid 15 minutes. Okay, can I give you my guess? Yeah, my guess would be that the great thing about having multiple teeth is that if you break one, it's not a catastrophe for the rest of them.
Yeah, this definitely is a part of it. So imagine that you crack a tooth. That's bad. That's like, there's a whole bad vibe.
Imagine that you crack your tooth. Yeah. And it's a big wide tooth. And then like, I don't know, like it's the odd that sounds so painful.
First of all, how do you feel? How do you feel just before it's even broken? How do you feel about the idea of your mono teeth? It's a good look.
Yeah. Yeah. Like how it looks. Oh, yeah.
I think it'd be a cool look. I think it would really reshape humanity to just have like a band of bone exposed. It'd be easier to brush. Yeah.
I mean, like, it'd be easier to brush. You would have to floss. Yeah. You would have to floss.
We couldn't floss. We couldn't manage. There would be no opportunity to floss. There's nothing to floss, which I...
There's nothing to floss. But I might take that and trade off. Having broken a couple teeth in my day. If you multiply that pain times 18 or 24 or whatever, I do not want to experience that.
Like I will floss every day for the rest of my life never to feel that. All right. I've never broken a tooth, but I feel like I could take your word for it. The other thing that we came up with is that your teeth kind of fit together when you close your jaw.
Yeah. And that is probably in part due to the fact that they can float around a little bit to find their sort of best situation. And if they were one big mono tooth, you might end up with like one of the cusps of one of your teeth not fitting right and it just being like less good to chew. And then that might be something that was selected for so that it improved the ability of a bite to bite to have enough.
But I think it's got to be mostly like you just want backups. So if you look bad, you got others around. Yeah. It's like having a fail safe built into your airplane.
You want a backup system. And this isn't that weird though because there are animals that kind of have two teeth, which is like everybody with a beak. Right. Two teeth.
Right. Some animals have beaks and teeth, but we don't get into them. What? Yeah.
Well, now we do need to get into them because I don't know that. Oh, yeah. Do you mean some animals have beaks and teeth? Yeah, there's birds with teeth.
Thank everybody knows that. Yeah. There's like there's birds with like serrated beaks. Yeah.
Like geese, which are teeth, if you will, I guess they're kind of teeth. I guess they're kind of teeth. They're not teeth, but they're teeth. Let me read to you from the website 10 amazing birds with teeth.com.
Yeah. I definitely feel like they know more than I do. Yeah. I mean, I'm looking at some birds that it's difficult to argue that these birds don't have any teeth.
They don't have teeth like we have teeth, but yeah, I've got teeth. Now I'm starting to think that my definition of teeth is too expansive and or my definition of doors is inadequately expansive. I'm not sure if birds have teeth categories don't make any sense. Let's move on to another question also about teeth.
This one comes from Paige who writes a Dear John and Hank. Are there more teeth or more legs? Oh, no. Oh, no.
It's got it. It's got legs. It's not even close. Yeah, it's not even close.
Yeah. It's got insects. There's so many insects. Yeah.
If you wait up all the humans and all of our livestock and all of the mammals on earth and then you wait up all the fish and whales and dolphins on earth, it would weigh less than all the insects. That's wild. Do you have that one confirmed? Is that from a reputable source?
I might say it sounds completely plausible. I'm not saying you're wrong. Yeah. They are the largest biomass of any of the terrestrial animals.
It's possible. If you had a fish and maybe not, but hey, who knows? Yeah, it's close. It's relatively close, but I think insects have all mammals, livestock and fish out weighed by just a little bit.
I believe it. And look, they have like six legs minimum. Yeah. So it's got to be legs.
Or I guess. Yeah. Yeah. Six legs minimum.
Yeah. And we got a lot of teeth, but there's not very many of us. And some fish have a lot of teeth. But there's so many, like per unit of biomass of like fish, there's way more individual insects and they all have at least six legs apiece.
It's got to be legs. That was easy. Yeah. Unless it's the legs that I'm imagining, I'm just going to imagine a lot of teeth.
Can I tell you some more? I didn't tell you some more fun biomass facts. Sure. Fun guy outweigh all animals combined.
Wow. Insects, fish, mammals, everything. And insects. And fun guy plus animals plus all the spiders weigh about spiders or animals.
One third as much as all the bacteria. This is this is yes. We do not have a great conception of how much of the earth is composed of bacteria. Which is a lot of the living stuff.
Bacteria outweigh animals by a factor of 35. Yeah. This is just for clarity. It's disgusting.
It's disgusting. We are confused. We are covered in them. This is not individuals.
This is biomass. Oh, right. There's no individual. There's no like single staff bacteria out there that's like pumping iron, weighing 650 pounds and being like someday someday I'm going to be Mr.
Universe. No, of course, it's all of them combined. But there's a ton of them. There's so many of them.
Oh, all right. I'm down the rabbit hole. What's there mostly in the ocean? Oh, yeah.
Is the thing. Yeah. Yeah. I mean, up to half of all bacteria die every 48 hours.
John, this next question comes from Audrey who asks Dear Hank and John. Moon not cold. That's the whole question. The M is not capitalized, but all the other ones are.
So, Audrey turned on capsulops, but then a hit shift to make the M small. Moon sometimes cold. Moon sometimes cold. Very cold.
Yeah. Yeah. And sometimes very hot. Rarely, rarely super pleasant.
No, you'd have to be the right place at the right time for it to be a good temperature. But regardless of the temperature, there's no air. So that's part of why Moon so hot and Moon so cold is that there's nothing to hold onto the hot or the cold. Yeah.
Do you know why Moon so hot, John? Because there's no atmosphere and sun shining on it. The sun shine. I think people get like the popular media has done us dirty and made us think that you freeze when you go out into space.
This is true almost everywhere in space, but not where we are. So we are in a weird spot in space. Yeah. We're close, very close to a star.
Almost all the space is very far away from a star. So it's quite cold, but we're very close to a star. So it's very hot as long as you're in the sun, which is also true, you know, in like Florida and stuff, but there's nothing to do with just be clear because of the magic of the magic of an atmosphere. But yes, it is hotter in the sun than it is not in the sun.
Correct. And so yeah, there isn't a lot of stuff to get heated up, but where there is stuff like, you know, the surface of the moon, the surface of your skin, the surface of the space station, all these things have to worry a lot about being sometimes very cold and sometimes very hot because the day on the day time on Moon is like two weeks long and the nighttime would be two weeks long. So you kind of got a period where things have plenty of time to heat up to their maximum heat and then they radiate away some of their energy as infrared radiation. And that's why it doesn't sort of get infinitely hot.
And then you got plenty of time to cool down on the opposite side of that. Whereas the astronauts had to stay cool the whole time because when they went up for the Apollo missions, they were in the day the whole time. They did not want to have them be in the night because that makes things harder. Yeah, I'm pretty sure nobody was on the moon at the night.
But now I'm not positive. So don't quote me on that. I like thinking about the fact that when I see the moon at night, even though it looks like the moon is shining down on me, and that's something we talk about moonlight, moonshine. In fact, the sun is shining and it's just reflected the moon is reflecting the sun's light toward me.
So it is in fact like evening sunlight or evening sunshine. I think that's really lovely. Yeah. And even during the day when you see the moon, that's sun light bouncing off the moon.
The moon is very dark too. So it's just a lot of sunlight sitting in it. Yeah. So anyway, moon not cold except for half the time when moon super cold.
It's confusing. I'm not a little too intuitive, you know, because the moon looks cold in the same way that Mars looks hot. It just does. Yeah, that's also confusing for sure.
And Mars, Mars cold. Mars always cold. Mars always cold. Mars can get colder or hotter, but it's always cold.
Hey, we have another science question from Addy who writes, hello, my name is Addy. I'm nine years old, and I just wanted to ask you this. What if my colors look different than yours? Like what if my blue is your pink?
Definitely not your daddy. Addy. Thanks Addy. Good one.
We don't. I don't think that we actually know. We don't know know whether or not my blue is your pink. Well, we kind of know, right?
Because we understand the way. So Addy, the way that we see color is that certain colors are, Hank's going to explain to you how we see color, Addy. So light wiggles and it can wiggle different. Yep.
And then colors are just the diff are just like light that has different wavelengths. So different amounts of wiggles between physical points. So like more ups and downs in an inch, which is wild. But this is how it works.
That's what color works. And so what we do know, Addy, is that when light shines with those different wavelengths with a different number of wiggles in the same section of space, that's how we see color. And we know that all of our eyes that see color, see color in fairly similar ways. And so we can presume that when you see the color blue, I also see the color blue.
Well, we can presume that like you both see a color blue. Right. But there is exactly the same. We don't know.
Like there's yeah. But my blue is not your pink. My blue just might be your different blue. Yeah, probably.
But there isn't a way to actually know this because we cannot experience each other's perception. Yeah, Addy, one of the super weird things about being a person is that the whole time that you're here, you're inside of one consciousness, you know, like you can only see the world out of your eyes, which is really, really weird. And you are right to be like, Whoa, this is weird. And this is a great question.
As a way to ask that question. Yeah. And but it is not limited to color. It's limited to everything does does pain feel the same to all people?
Seems like it. Right. But we don't we don't have any evidence. We don't have a way to prove that we just have lots of indications that it is the case does love feel the same for all people?
Does does the flower smell the same to all people? Does an ice cream cone taste the same? Yeah, I mean, don't know for sure. And we definitely know that people have like we can tell that there are cases where people do have different senses, specifically tastes is like a one that definitely has variations and that people can taste things differently.
And there's there's reason why some people don't like some tastes and some people aren't capable of smelling certain smells. Some people aren't capable of smelling at all. Yeah. Oh my gosh, what a world.
So yeah, the world is is complicated and and messy and you can only see it out of your eyes. But when it comes to trying to understand what it looks like from other people's eyes, the best way that we have invented so far is listening, yeah, trying to pay attention to what other people tell you and believing them believing that their experience is real to them. John, which reminds me that today's podcast is brought to you Patty by the fact that we are stuck inside of just this one flesh that for the whole time we're here. This podcast is also brought to you by the infinite number of wheels I am imagining right now.
Boom, done. Argument settled. Except that this podcast is additionally brought to you by the infinite number of doors that I am imagining right now. Boom, unsettled.
We also have a project for us a message from Sarah Bocker who says, thank you for your kindness and support after a plane hit my house on August 17th, 2019. Your care package was incredibly considerate and means the world of my sister and I. My sister Hannah is an 85% second and third degree burn survivor. She's graduating from University of Buffalo in civil engineering soon.
And while we lost everything in the fire, including my dad and our pets and still have no answers after a year and a half of being homeless during a pandemic, we managed to buy a home and reunite the surviving family members and pets. I'm helping fight COVID as a medical technologist despite my PTSD and we struggle, but we manage one day at a time with both physical and emotional scars. This community taught me how to give back. So we raised money for the Ronald McDonald House of GHV and the NYPC.
I still go to Agola New York to reflect and will always give thanks to all who helped me and my family, Agola sends its love and its regards. Please stay safe in more ways than just COVID free. I love you all. Thank you, Sarah.
That is so kind. I really appreciate that update and thank you for donating to the project for awesome. Yeah. This episode of your Hank and John's Brown view by Shopify.
There are a lot of things that stand between I have an idea and this is an idea that actually exists in the world and people are buying things from me. And that is what Shopify makes easier. When you start with Shopify, the tools, to design and launch and take payments, they're all there from day one. You don't have to build a whole machine before you can start building the business.
And this is important because you also have to look good and with Shopify's templates, you could get a site set up really quick that looks credible and professional without needing to code or duct tape a bunch of different tools together. And when things look real, that works on my brain to be like, I'm doing a real thing. It also works on other people's brains to be like, this is legitimate. Shopify also has one of the best checkout systems on the internet.
It's built to help customers finish the purchase effectively and efficiently without a bunch of roadblocks. Returning customers can check out with a single click. That means less friction and fewer abandoned carts and a smoother experience for everybody. That stuff gives you confidence early on and it gives other people confidence in what you're doing.
You're not wondering whether the payment system is going to work. You're not wondering whether customers can get through the process. Shopify handles that foundation so you can focus on the thing that you're actually trying to do. It's really kind of amazing to me that Shopify is a tool that works from the first day your store launches when you're just starting to get customers all the way up to being the size of Good.store or DFTBA.com or being the size of like Mattel and Gymshark.
When you build a Shopify, you're building with tools that already work at every scale. All you need is the idea, Shopify handles the rest. You can start your free trial at Shopify.com slash DeerHank. Start your free trial at Shopify.com slash DeerHank.
With new subscription only, while supplies last until September 27th, 2026. See you website for more details. One thing I love about summer is how easy everything feels. The days are a little more relaxed.
My kids don't have to wake up at five in the morning and I find myself reaching for the same comfortable go anywhere pieces again and again which is why I keep coming back to Quince. I often wear either a long sleeve or a short sleeve button down from Quince and it fits well and I never have any complaints. In fact, sometimes I get compliments about it. I was at the airport a couple days ago.
I often find myself in airports and someone said I like your shirt and I said thanks. It's from Quince. Quince is 100% European linen pants and shirts are breathable, easy to throw on and the summer upgrade your rotation needs starting at just $34. Their tees are soft enough to live in all day and the lightweight cotton sweaters are exactly what you want when those summer nights cool down.
So that's why I'm wearing Quince this summer and you can make your summer wardrobe easier by going to quince.com slash DeerHank for free shipping on your order and 365 day returns. Now available in Canada too, that's q-u-i-n-c-e.com slash DeerHank for free shipping and 365 day returns, quince.com slash DeerHank. This episode of DeerHank and John is brought to you by Factor. Imagine for a moment that you are absolutely immersed in some work where you're creating something beautiful or useful or useless and ugly but you love it anyway and you look up and suddenly you have a feeling and that feeling is that it is 2.30 pm and that you did not eat lunch.
What are you going to do? Are you going to get meal delivery that's going to cost too much and maybe be a bit of a mistake or are you going to go to the cupboard and just eat several fistfuls of peanuts? Those are my two choices unless I have a factor in the fridge. You can get smoky barbecue chicken breast with potato mash, cream corn and peppers.
You can get creamy lemon pepper chicken with veggie rice peel off broccoli and carrots. This has the fiber I need, it has the protein I need and it has the deliciousness I need. What about garlic herb roasted barramundi with potato zucchini and burr block sauce? I don't really know what that means but it sounds delicious.
What about a black bean taco bowl with corn salsa and cilantro crema? A delicious high fiber high protein meal that no animals had to die for? Any of those can be ready in two minutes. Fresh, never frozen, over 100 rotating weekly meals including globally inspired flavors like Mediterranean and Asian, Factor shops, preps, cooks and delivers straight to your door so you have more time for everything you love this spring.
Head to factormeals.com slash deer hank 50 off and use the code deerhank 50 off to get 50 off and free daily greens per box with new subscription only while supplies last until September 27th, 2026. See website for more details. Alright let's answer another question. This was from Ashlyn who writes, Dear John Hake, I just heard my first ever full-time job.
I'm going to be an administrative assistant. I am thrilled but it's only day two and I realize that my upper arm is in pain from using this computer mouse. I've used a desktop regularly since I was in middle school and I've only used laptop touch pads. Am I just weak?
Am I holding my arm out too far? How do I office correctly? It's not Wednesday. Ashlyn.
That's a good Ash Wednesday joke. Ashlyn. I feel like I have made my whole body in service of the use of this mouse. Oh, do you still use a mouse?
Oh yeah. You can answer this question with some expertise. I was going to say, you just trackpad? Yeah, I was going to tell Ashlyn to just tell work like, hey, I need a trackpad.
This is ridiculous. It's 2022. You can do that. Yeah, you can absolutely do that.
And they, I think, and if you're in pain, they're more or less required to fix that. Yeah, it's also true. But in general, it is a very normal thing for people to ask for equipment. And if you say if it will increase productivity, it will be totally worth it as well as the right thing to do.
So I have no idea, but I do know that like my back doesn't feel great. And it's probably like and specifically on the side that I constantly use my mouse on. So I'm probably the wrong person to answer this question. But I am a mouse user.
Do you not like sit at a desk with a keyboard and a mouse? Nope. Do you sit at a desk with a computer? Do you have a desktop?
I don't have a desktop and I don't sit at the desk, except when I'm recording your hand. Oh my God, that's that's mind-blowing to me. I just sit in a chair and I put my laptop on my lap. I got a whole situation here.
I know sometimes I see your whole situation and I'm like, that looks like he's probably much more productive than I am, but I like to be able to stand up and sit in a different chair. Yeah, no. That's not that's not a that's not a my list of things that I've even ever imagined. Oh, it's great.
I haven't had a desk with a chair since 2006. Man, actually, well, here's what I got to say. This is your one chance to get it right the first time and don't don't make the same mistakes I did, which is that I haven't ever thought about it. And so now I am constantly have shoulder and back pain.
So so go and talk to go to some website that will give you better advice than I could possibly give you as a person who has done this wrong the whole time. Correct. There you go. This next question comes from Darcy who asks, Dear Hank and John, why are Dalmatians firefighters dogs of choice?
Arrive Darcy. Do you know the story of this? Dalmatians? Yeah.
I got well, I got I got some information on it, but I feel like you got more information than I do, but I didn't know there was a story. Oh, so the narrative is is astonishing. Okay. In the 1800s in the early 1800s, when public fire departments were becoming a bigger and bigger deal, like we were in Boston over the weekend.
We actually walked walked past a fire department that was from the early 1800s. And on the side of the building, it said this fire department has been erected by the people of Boston to combat the scourge of fire, like as a way of acknowledging that fire was a public health catastrophe, really, and that we needed a sort of shared public government based response to it. And in the early 1800s, when firefighters were deciding what their dog was going to be, there was a contest where a series of dog breeds were asked to perform all different kinds of tasks related to supportive firefight. I don't know if I believe you.
And the Dalmatian won. And it was a big national big national story, front page of New York Times. You know, the Dalmatian is the firefighter of the future. I'm so why don't I believe you?
God, thought I did a great job by setting it up with something true. That that I felt that I was all in for. I'm trying to do a thing now where I try to trick you where I I grounded in something that's so that's the thing that's gonna be true. And very fast.
Like you were in Boston this weekend, I did see that sign. And then I try to extend it out and I try to like roll through the part that doesn't make any sense. Yeah, that was the main thing. I think I might have over set it up so that you're like your hackles were raised as the children like to say.
It may be something it felt like it shifted from something really concrete to something really yeah, I feel like the shift was too great. Right. Do you want to know the actual reason? Yeah, but I got to work on my fake story while you're thinking about it.
Yeah, what's the actual reason? Okay, Dalmatians were noticed to run alongside of horses. And they started to actually train Dalmatians to do this to protect them. And this now that I'm saying this, it sounds fake.
This is true. The Dalmatians were trained to run alongside of horses when horses were pulling carriages to scare off other dogs that might scare the horses. So the horses were comfortable with these specific dogs and they would allow the horses to and they could keep up with the horses. They would just run alongside and basically protect the horses from things that might scare the horses, which would be dangerous.
And then as that transition to firefighters having their equipment being pulled by horses, Dalmatians came along with them as that transition out of needing horses to be involved at all, they kept the Dalmatians. Wow, that does sound fake. It sounds fake. It sounds very fake.
When you started off with a fake thing. I think my story is actually more compelling. believable. That's the case oftentimes with fake things.
Oh, Hank. Yeah. Speaking of fake things, did I tell you about my extremely minor contribution to the history of the world? Hank, maybe the coolest thing that has ever happened in my entire career happened last week.
So when I was writing the Anthropocene Reviewed book, I was writing about Saffylococcus aureus, this bacteria that caused a lot of human suffering. And I wrote about the first person who was ever treated with a who had a life threatening illness who was ever treated with penicillin. There's a police officer in England named Albert Alexander in 1941. And the story, and I read the story and all these medical journals and everything, the story was that Albert Alexander was pruning one of his rose bushes and his prized rose garden when he got a cut on his face that resulted in the saff infection.
And then he had to get penicillin. Now, unfortunately, they like prune it to be like prune himself in the face? Exactly. Great question.
So unfortunately, Albert Alexander died of this infection. He after receiving penicillin, he got much, much better. But there wasn't enough penicillin in the world at the time to even treat one person. And so the infection returned and he died.
Penicillin is so recent that his daughter is still alive. She is in the United States. She's a painter. And this story that he was like cut by a rose bush and that led to the saff infection, it's believable in the sense that very small scratches could be fatal back then.
But it just didn't make sense to me. Like it's so metaphorically resonant, like killed by a beautiful rose that I was like, this seems a little much, you know? And also, I couldn't find any good sourcing for it. Like all the sources were referring to each other.
And then finally, I found a first person account by the daughter who was like, my dad was working as a police officer in England during the Blitz and he was injured by shrapnel. And that's how he got this infection. And so that's the story that I used in the Anthropocene Reviewed book because it was the only first person account that I could find. A medical historian reads the Anthropocene Reviewed book and is like, that's not the story.
That's not the story I've always heard. And then last week, he published like a 5,000 word authoritative account of what actually happened to Albert Alexander. It turns out that he was injured in the Blitz when the bombing was that where he was injured, what happened everything. And this little tiny piece of history has been changed.
You did it, John? Well, I didn't do it. The historian did it. But work was done.
I contributed in a small way. And it just makes me so excited and happy. The article is called Guns Not Roses, Shess Kiss of a Bible. And it's written by Bill Sullivan, who's a professor of pharmacology and toxicology.
So cool. That is super cool. I mean, terrible, obviously, but also so cool. That's, I mean, we run into stuff like that quite frequently in our work where we come across something that's just like, this is great.
It's a great story. And there's a lot of articles about it, but they all point to each other. It's just like a big circle of people saying that it came from here. And I've tried to get to the bottom of some of those and you end up six hours in and like, this, I can't.
Well, the classic one is this Margaret Mead quote about how the first sign of the truest sign of civilization is a healed femur in the fossil record. Because that means that a human had to take care of another human. And you see that everywhere. Oh, yeah.
All kinds of books, all kinds of journal articles. Not only did Margaret Mead never say that, it is in stark contrast to what Margaret Mead actually believed about civilization and about pre-civilization, I mean, what Margaret Mead knew to be true about so-called pre-civilizational people, which is that there were often healed femurs in the fossil record because humans have been taking care of other humans since way before agriculture. Yeah. And also like, there are healed deer femurs in a fossil record.
Right. Sometimes people figure out a way to make it work. Oh, Johnny, you have another question? What do we got?
Where are we doing? Yeah, I got another question for you. Okay. This question comes from Floyd who writes, Dear John and Hank, do astronauts ever eat normal food?
Like I've seen those packets of dehydrated astronaut food, but do they actually eat that stuff? Like I get that it could be useful because it takes up less space and it's really light and whatever. And there's a long shelf life, but do they ever get normal food too? Not pink, Floyd.
What a great question. I have no idea. I think that they can sometimes get a little bit of normal food, but it is a special occasion type of thing. In fact, in the Apollo missions, one of the, I don't remember what it was, was like a corned beef sandwich or a pastrami on rye, but like one of the astronauts smuggled a sandwich on and it was like a problem because like there were crumbs, crumka over the place, it smelled really strong and the other astronauts were kind of pissed off at him.
So, the Apollo missions were full of like people being like, just maybe not taking the mission as seriously as they could have. But now I think that like, so almost all of their food is, you know, it has to be reheated for sure. Like they're not cooking up there. You can't cook in space.
That's one of the reasons you have to have the food be prepared. And then, so they're heating it up and basically, it's not a microwave, but it's fancy oven. And it's often rehydrated because you don't want to like, it's just heavy, water is heavy. They have water on the space station.
They sort of want to keep those things separate. So they bring the food up without water in it. But there's oftentimes there's like also stuff that's fairly normal. Like they use tortillas a lot, for example, because they don't have a lot of crumbs and they don't have a lot of water weight.
They have some, but you know, astronauts are constantly like spreading stuff on tortillas. So depends on what you mean. There's plenty of normalish food though. That sounds like regular food to me.
That's my lunch most days is spreading. Stuff is spread on a tortilla. Yeah. Peanut butter or cheese on a tortilla.
Spreading cheese? Yeah, you know, spreadable cheese? Well, I guess you don't spread it so much as you melt it. Okay, that's fine.
I mean, if you were to spread cheese, that'd be fine. Just cheese whizzing it up on that tortilla and then like smoosh it around. No, I can never. I can never use spreadable cheese ever again for the rest of my life because of all the times I had to interact with these spreadable cheese machine.
It's taken shake. Like, you know, like people would order chili mac or whatever and I'd have to like pump out the cheese and then like when you have to clean out the cheese machine and replace it with new pumpable cheese, it does not, it lives long in the memory and let's put it that way. Well, I am still on board with spreadable cheese and though I don't have the opportunity that often. Well, yeah, I do and I just don't take it.
This question comes from Elijah who writes, Dear John and Hank sitting in this third floor classroom, turning the complexities of linear algebra over in my head, I find myself looking out the window and seeing a sprinkler watering a grass soccer field and doing so, I noticed an everyday phenomenon that perplexes me. The sprinkler casts a shadow but water generally is clear. We can see it so it's obviously not completely clear but still, how does moving water cast a shadow? If this water were to sit in a clear tank, any shadows it casted would be negligible, right?
I appreciate any illumination you can provide on this matter support your favorite non-profit, Elijah. It's a profit-wise joke. Oh, yeah, yeah, I wouldn't have got there. The sprinkler in question is not the actual physics of water that's being sprinkled, casting a shadow.
The reason, so if you had a large sphere of water, it actually would cast a kind of shadow not because it's blocking the light race but because it is moving them. So it basically, each individual little piece of water, being sprinkled by that sprinkler is a little lens and it's diffracting the water in all kinds of directions. So effectively, all of the area around the shadow is a little bit brighter and the area in the shadow is a little bit darker because not the light, not that the light, but most of the light isn't being absorbed, it is being refracted and elsewhere. And so you get that effect where it looks like there's a shot, but that light is ending up on the ground somewhere else or it's being reflected from inside the drop and being shined up into the sky.
Cool. Well, there you go. Go back to linear algebra now, Elijah. Well, it might come in handy if you actually want to do calculations for how that is actually happening because optics is a pain in my butt.
Oh, it's so complicated. What is the news from AFC Wimbledon? All right. So here's how desperate the situation has become Hank.
Last week, I got a message from somebody who works at AFC Wimbledon, who said, hey, can you make a video for the boys? So I did. I did. I made the best motivational video I could make.
I spent half a day on it, I worked really hard on it. It's all about how spring is coming and how, you know, when you're in the depths of winter, you feel like it'll never be spring, but spring comes anyway. And spring is coming for AFC Wimbledon. And I tried to be as fire.
I tried to just channel my inner Ted Lasso and go full fire. How did they play? Have they played a game since then? They have.
Yeah. They lost. We don't need to talk about it. They lost.
They lost two nil. It did give us the occasion to sing my very favorite soccer chant. You're nothing special. We lose every week.
Oh, no. Which lately we do. And yet somehow, some way they're continued to be barely, but they're continued to be four teams that are worse than us. AFC Wimbledon have lost.
Well, we haven't won a game in 2022. And it ain't the beginning of the year. It's been a really, really, really difficult time. I do not have a lot of confidence that we can stay up.
Certainly, if we keep playing like this, we won't. There are eight games left in the 2022 league one season, and we need to win some of them. So yeah, it's definitely the most, I don't know, I mean, every year at this time of the season, I'm really worried, but usually I see members of hope. And at the moment, I just don't, if I'm being honest.
Like it seems like it could happen, but it's going to be luck if it happens. I mean, one year, we were, we would have definitely been relegated if the season hadn't stopped because of COVID. So we certainly, I mean, I don't know if it's correct to call anything associated with COVID luck. But certainly Wimbledon have been in this situation before.
If there is a comfort, in fact, we've been in it every flippin season for the last five years. So we'll see. We'll see. We've got to turn it around, though.
And I'm sorry that my motivational talk didn't do it. We've got to find a way, though. What if you get now stick with me? Yeah.
Ronaldo to come and play for a C one with them. Now, not interested. He plays it just at United. I don't want any of those people.
Maybe most of them could go out on loan for six weeks. It was really struggling in front of goal. So if we just about like, what about somebody who's retired, they were really good. They retired or bring back like David Beckham or pay play.
Yeah, I take I take the year old Pele at this point. Yeah, he's still got an eye for goal. He's a finisher. He doesn't.
Yeah, we just put him up front and we say, listen, stay where you are. You're going to be off sides most of the time, but we don't need to be on the sides most of the time. We'll get it there. We'll bring it up.
I'm going to pass to you. And then you go to the top of the box and wait and we will get the ball to you once or twice a game and then shoot. He is 81 years old. I mean, I would take him in a flash.
This is a bunch of 17 year olds in Pele. We've got one adult. So this week at Mars news, the Mars ingenuity helicopter. I mean, I guess it's the Mars ingenuity helicopter.
It's been flying around Mars for almost a year now. It is still going. It just wrapped up. It's 21st flight.