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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.SciShow Tangents is on YouTube! Go to to check out this episode with the added bonus of seeing our faces! Head to to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Truth or Fail]Gold-plated bacteriaContact lenses that shoot lasersLead into gold with lasers[Trivia Question]Universal Product Code first scanned in grocery store[Fact Off]Laser cooking of printed chicken lightning rod for deflection/protection[Ask the Science Couch]Long-distance lasers and masers  [Butt One More Thing]Low-level laser therapy for butt (or any) tendons
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