How to Make UV Light Out of Your Phone’s LED Flash

What this episode covers

What is a blacklight and how do you make one? This is the topic of a recent MacGyver episode in which he quickly creates an improvised blacklight to find hidden messages on a wall. You can watch the scene here-and a disclaimer, I am currently the Technical Consultant for the show. But still, there's lots a great science in this one little scene. What is "Blacklight"? OK, it's not really a black light. It's better to call it what it is: ultraviolet light. Let's start with a quick overview of light. Learn more about your ad choices. Visit podcastchoices.com/adchoices

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How long is this episode of What's New?

This episode is 10 minutes long.

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This episode was published on December 9, 2016.

What is this episode about?

What is a blacklight and how do you make one? This is the topic of a recent MacGyver episode in which he quickly creates an improvised blacklight to find hidden messages on a wall. You can watch the scene here-and a disclaimer, I am currently the...

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