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All Episodes

Moment Of Um — 398 episodes

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Title
1

We’re back! Brains On Universe has a new headquarters

2

A big update about Moment of Um and the Brains On Universe

3

How do braces work?

4

How did the solar system and all the planets get their names?

5

How do stoplights know when to change?

6

Can you control your dreams?

7

How did people figure out how to make yogurt?

8

Why did snakes lose their legs?

9

How do snakes make venom?

10

Why are snakes shaped like a stick?

11

What do zoos feed big snakes, such as pythons?

12

What do snakes do when they hibernate?

13

Why am I allergic to raw egg but not cooked egg?

14

How do mood rings work?

15

Why do we have weird dreams when we’re sick?

16

Are brains really pink?

17

Where do poop and pee go on airplanes?

18

Could you make a candle out of earwax?

19

Does space affect an astronaut’s digestion?

20

Why are some dogs so small and some so large?

21

How does the earth support heavy buildings?

22

Why is the moon white and why does it have different shapes?

23

Did dinosaurs fart?

24

What was the very first dinosaur?

25

How do we know what dinosaurs sounded like?

26

How did Megalodon sharks go extinct?

27

Did dinosaurs lay colorful eggs?

28

How does an immortal jellyfish go back to being a baby?

29

Why can you hear the ocean in a seashell?

30

Why are we more closely related to fungi than plants?

31

Would a poisonous snake die if it bit itself?

32

What are birthmarks?

33

What makes dolphins so smart?

34

Do we sneeze in our sleep?

35

Do lizards smell with their tongues?

36

Do we have our own gravity?

37

Why do beans give us gas?

38

Why don’t scars go away?

39

How do boomerangs return?

40

What happens when paleontologists find a fossil?

41

What is plastic made of?

42

How does pasta turn from hard to tender?

43

How are our brains different from other animals' brains?

44

Do zookeepers work at night?

45

Why does corn have hairs on it?

46

Where does pepper come from?

47

Why do donuts have “nut” in the name?

48

Why is cotton so fluffy?

49

How is couscous made?

50

Why do people stop growing taller?

51

Why can’t we feel our hair growing?

52

Do plants have DNA?

53

How do flat rocks skip across water?

54

Why do flightless birds have wings?

55

How are cheetahs so fast?

56

Why does cutting onions make you cry?

57

How do lizards detach their tails?

58

Why is chocolate poisonous for dogs?

59

Why do we faint?

60

Why do we feel dizzy when we twirl around?

61

How do caves form?

62

Bedtime on Dragon Mountain

63

Why do we talk in our sleep?

64

How long would it take a whale to swim from California to Japan?

65

How do we know dreams aren’t real?

66

Why do people cuddle?

67

How do polaroids develop pictures so quickly?

68

How do ballerinas stand on their toes?

69

How do scientists know how old fossils are?

70

Does water have a taste?

71

What is silica gel and why shouldn’t you eat it?

72

How can mold be used for medicine?

73

Why do our ears pop on airplanes?

74

Why does the bowl get hotter than the food in the microwave?

75

How do frogs' tongues stretch so far?

76

When did people start wearing makeup?

77

How do minerals form in caves?

78

How do sticks make fire?

79

How do green screens work?

80

Do babies understand words?

81

Why does mold have different colors?

82

What makes food organic?

83

How does soap make bubbles?

84

Why does your skin itch when it’s healing?

85

Why does blood taste like metal and why are we not magnetic?

86

How do cars go backwards?

87

Why can’t kids go to space?

88

How do you make clay for pottery?

89

Why don’t robots have tickle spots?

90

What do scientists in Antarctica eat?

91

Why do dogs like to roll in stinky things?

92

If dragons were real, how would they fly and breathe fire?

93

How does soil get made?

94

What would happen if everyone on Earth went to the same place and jumped?

95

Did dinosaurs have baby teeth?

96

Could you use up all the energy in the universe?

97

Why do clothes shrink in the wash?

98

Why don't ears have bones?

99

How does antivenin work?

100

Why are there holes in Swiss cheese?

101

How do ping-pong balls bounce so high?

102

How does gasoline turn into exhaust?

103

What happens in our bodies when we are sick?

104

Why do some trees grow taller than others?

105

Why are peaches and some other fruits fuzzy?

106

How were black holes first discovered?

107

How do records work?

108

Do airplanes have a speed limit?

109

How do stethoscopes work?

110

How many times does our heart beat a day?

111

How do sinkholes form?

112

What would happen if I went inside a black hole?

113

How do 3D glasses work?

114

How do vocal cords work?

115

How does hair dye work?

116

How are bricks made?

117

When did people start using utensils?

118

How do our clothes get dirty?

119

Why does salt make you thirsty?

120

Why does bread have holes?

121

How do people get warts?

122

How does a platypus make its venom?

123

How did the peregrine falcon get its name?

124

Why don’t mountain lions have manes?

125

Do birds cough or sneeze?

126

How do bears make their dens?

127

Why do we have friends?

128

What is the strongest glue?

129

Do penguins sit down?

130

What causes solar flares?

131

How do trumpets make that bbbbrrrrrrr sound?

132

Is rainwater safe to drink?

133

What's the smallest unit of measurement?

134

How do stars form black holes?

135

Why do daddy long legs have super long legs?

136

How do fireworks explode?

137

How do batteries work?

138

Why do we rub our eyes when we're tired?

139

How do lightbulbs work?

140

Why do ostriches stick their heads in the ground?

141

How does anesthesia work?

142

Why do we need belly buttons?

143

What produces eye gunk when we sleep?

144

How does bug spray work?

145

Why do we itch?

146

What are antibiotics and probiotics?

147

How do music boxes work?

148

Why do pugs have such scrunched faces?

149

How do Magic 8-balls work?

150

How and why do we produce saliva?

151

How is flannel made?

152

Why do irons have to be hot to de-wrinkle things?

153

Why didn't sharks go extinct like dinosaurs?

154

Why do volcanoes go dormant?

155

What is the flavor of root beer?

156

How does your body make a fever?

157

How do QR codes work?

158

How do solar panels work?

159

How do 3D printers work?

160

What makes a computer a computer?

161

How are computers programmed with ones and zeros?

162

Is there sound in the universe?

163

Why does dust make us sneeze?

164

Do all rocks have iron in them?

165

Can muscles break like bones do?

166

Why do fevers give you chills?

167

Why aren’t hermit crabs born with shells?

168

Why is being right-handed more common?

169

How do butterflies get their designs?

170

Do cats go to the dentist?

171

What is lava made of?

172

Why do gorillas beat their chests (and why is science so great)?

173

Why are cactuses prickly?

174

Are bananas radioactive?

175

What happens when parts of your body fall asleep?

176

How heavy is North America?

177

Why are keyboards in QWERTY order?

178

Why do horses need horseshoes?

179

What is carbonation?

180

Could a popcorn kernel grow into a popcorn plant?

181

How does the internet work?

182

Where does the metal in meteors come from?

183

What are tongues for?

184

How does coffee keep you awake?

185

Why do raspberries have little hairs on them?

186

Where does blue raspberry flavor come from?

187

Why do people have common dreams?

188

Why do we have nightmares?

189

How do we know dreams aren’t real?

190

What happens to dreams we don’t remember?

191

Do animals dream when they hibernate?

192

How do thermometers work?

193

How do birds fly?

194

Why do our tummies rumble when we’re hungry?

195

How do tattoos stay forever?

196

What is radiation?

197

How is caffeine added to energy drinks?

198

How do sloths sleep upside down without letting go?

199

How do octopuses blend in with their surroundings?

200

Why do we have nails?

201

How does wifi work?

202

How do crabs breathe?

203

Why do different flowers have different smells?

204

Why is the sun so hot?

205

Is a whale shark bigger than a whale?

206

Do wolves get the zoomies?

207

How old is the oldest tree?

208

How do you tell real from counterfeit money?

209

Do dogs and cats have butt cheeks?

210

Why does chamomile tea make you sleepy?

211

Why do we have reflexes?

212

What are freckles made of?

213

How far can an owl turn its head?

214

Do dogs have nose hairs?

215

Where did the first land come from?

216

Why does black absorb heat?

217

Why do we talk in our sleep?

218

How does a zipper work?

219

Why do nosebleeds start?

220

Why do you get a tornado if you stir tea really fast?

221

Why does time fly when you're having fun?

222

Can plants feel an electric shock?

223

Why does rain fall in tiny droplets and not big plops?

224

Why do we jolt as we fall asleep?

225

Do octopuses have brains?

226

Why do people move their arms when they walk?

227

What kind of blood do insects have?

228

Why do leaves change color only in the fall?

229

Do dogs remember when they were puppies?

230

Why do we go bald?

231

How are alligators and crocodiles different?

232

Do microbes sleep?

233

Why do beehives look like hexagons?

234

What's inside a black hole?

235

Why do we have bones?

236

Why do you lose your voice when you yell?

237

Why are diamonds so rare and valuable?

238

Why does your tongue stick to ice?

239

How did people make cave paintings?

240

How do bubbles pop?

241

Why is pee yellow?

242

Why were animals bigger in the past?

243

Why do sharks have to keep moving to stay alive?

244

How does your skin make a rash?

245

What’s the difference between AM and FM radio waves?

246

Why does ice help with swelling?

247

Why are spicy foods spicy?

248

Why does the sun stay in one place?

249

Do birds build a new nest every year?

250

When were tattoos first invented?

251

How did the days of the week get their names?

252

When were movies first made?

253

When were sewing machines first invented?

254

When did people start having pets?

255

How do drums work?

256

Why are bees black and yellow?

257

Why does your breath smell worse in the morning?

258

Why does hot sauce make your nose run?

259

Why is bird poop white?

260

How do you become a NASA astronaut?

261

How do shells get their shape?

262

Do snakes barf?

263

What happens when you pour salt on a snail?

264

What makes a good paper airplane?

265

How do birds make their eggs?

266

Do spiders have ears?

267

What would happen if it rained oobleck?

268

Do mice really like cheese?

269

How is wood made into paper?

270

How far has any astronaut traveled?

271

Do fish have tongues?

272

Are birds related to bats?

273

Why do bats sleep upside down?

274

Where does cinnamon come from?

275

What happens when big trucks roll over bacteria on roads?

276

Where does a candle go when it burns?

277

Why do bees buzz?

278

When your eyes are closed, are your pupils big or small?

279

How do cameras take photos and videos?

280

How and when did jokes start, and why?

281

What happens when lightning strikes water?

282

Why does bread change color and texture in the toaster?

283

Do worms sleep?

284

Which is older, the sun or the moon?

285

How can parrots mimic other sounds?

286

Can a moon have a moon?

287

If ants like sweet things, why don't they attack beehives?

288

What is tree bark made of?

289

How do vacuum cleaners work?

290

Would a flashlight turn on at lightspeed?

291

Why do we jump when we get scared?

292

How do microphones work?

293

Why do our lips get chapped?

294

Do eyeballs grow?

295

How do mushrooms grow if they don’t have seeds?

296

Do fish have allergies?

297

How do skunks spray their stink?

298

If the earth had rings, could we see them?

299

How do prescription glasses work?

300

What does earwax do for your ear?

301

What are eyebrows for?

302

What do germs and bacteria eat?

303

If hair is dead, how does it grow?

304

Why do we need toes?

305

Where do carrot seeds come from?

306

Why is air invisible?

307

Do cockroaches have hearts?

308

How do shoelaces come untied?

309

Why are some people lactose intolerant?

310

How many germs could we see without a microscope?

311

Why do crickets chirp?

312

What would happen if you took a party balloon to space?

313

Why does the moon change colors?

314

What happens if you put too much yeast in bread?

315

Why do we use toothpaste?

316

What's the sourest thing in the world?

317

What's inside teeth?

318

Why don't pine trees lose their needles in the winter?

319

Why do different countries have different flags?

320

Why do we need punctuation marks?

321

Why do words sound funny when repeated?

322

How does concrete harden?

323

Do spiders poop?

324

When were coupons invented?

325

How does a touch screen work?

326

What's the difference between a squid and an octopus?

327

How do we get milk from almonds?

328

Why are goats' pupils horizontal?

329

Do insects have ears?

330

Why does bamboo make a chattering sound?

331

How do trees make rings?

332

Why does steam travel up instead of down?

333

How do fish get into lakes?

334

Do butterflies sleep?

335

Why do I get so sleepy riding in a car?

336

Can one black hole eat another black hole?

337

Where do the insects go when Venus flytraps eat them?

338

How do narwhal tusks grow?

339

Why do our personalities change when we’re teenagers?

340

Why do fish jump out of the water?

341

What's the difference between a butterfly and a moth?

342

Why do things seem lighter in a pool?

343

Why can some people wiggle their ears?

344

Why does the Earth look flat from the ground, if it's a sphere?

345

How long does it take a Christmas tree to grow to full size?

346

Do galaxies orbit anything?

347

Does temperature exist in a black hole?

348

How much DNA do we share with tardigrades?

349

Could there be exoplanets that have life?

350

Why does tea taste stronger the longer you let it sit?

351

How do different ingredients become a cake?

352

Can the smell of your farts be determined by genetics?

353

Are there earthquakes on other planets?

354

How do evergreens stay green all winter?

355

What is DNA made of?

356

Why are some flowers called weeds?

357

Why do swear words exist?

358

Do flowers fall in love?

359

How do plant roots suck up water?

360

Why is salmon meat pink?

361

Why is milk white?

362

Are there clouds in space?

363

Are the galaxies in Star Wars based on real science?

364

Why are the primary colors different from the colors of light?

365

How do people freeze-dry food?

366

Why does cotton candy dissolve in your mouth?

367

How does popcorn pop?

368

How does cheese get its color?

369

If you took enough vitamins everyday, could you live without food?

370

Is the sun the hottest thing in the universe?

371

Why are so many planets named after Roman gods?

372

Why do grown-ups give more attention to babies than kids?

373

What are planets made of?

374

How do snails make their shells?

375

What is inside a cactus?

376

How are red, yellow, and blue made for paint?

377

Why do we like shiny things?

378

How many planets are in space?

379

How do animals become endangered?

380

Do snails pee, poop, or fart?

381

What would happen to Earth if the moon disappeared?

382

Why do we like screen time so much?

383

How many colors can we see?

384

Why are apples different colors?

385

What would happen if the Earth were flat?

386

How do fish handle pressure at the bottom of the ocean?

387

Do you control your emotions or do your emotions control you?

388

Could a bird or fish live on the International Space Station?

389

Why do apples turn brown after we cut them?

390

What is the universe made of?

391

What causes growing pains?

392

What determines the type of vitamins in each food?

393

Why do we get cranky when we get tired?

394

Do flies get itchy?

395

Can we visit the farthest parts of our solar system?

396

What type of fuel powers rockets?

397

How do rockets fly?

398

Is hyperdrive possible?