I Love Lasers, but They Never Are | 3min snip from SciShow Tangents

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Lasers

SciShow Tangents

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CHAPTER

I Love Lasers, but They Never Are

Lasers have been a figment of our creative imaginations for some time. But their uses aren't limited to science fiction. Scientists are finding very real ways to use lasers to make things that sound made up but are not. Today, we're going to be telling you a tale of three things made with lasers. And two of them are just plain lies. So tell us which one the true one is.

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In all of science, there are very few things conceptually cooler than lasers. A beam of light you can use to blast aliens? Heck yeah! But are lasers actually as cool in reality as they are in science fiction? Probably not! But I guess you'll have to listen to find out for sure.

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[Truth or Fail]

Gold-plated bacteria

Contact lenses that shoot lasers

Lead into gold with lasers

[Trivia Question]

Universal Product Code first scanned in grocery store

https://www.smithsonianmag.com/innovation/history-bar-code-180956704/

[Fact Off]