How Lasers Work | STUFF YOU SHOULD KNOW
The episode explains how lasers work, covering the basic principle of light amplification by stimulated emission of radiation and how photons are produced and directed to create a coherent beam. It also touches on common misconceptions and the broad range of laser applications.
Key Takeaways
- Lasers aren’t magical; they’re highly organized light behavior, proving order beats chaos in physics and punchlines.
- Visible spectrum trivia: yellow isn’t a single wavelength, it’s a band—surprising nuance for a 'yellow light' stereotype.
- Supermarkets use lasers daily; scanning your code is a practical reminder that cutting-edge tech hides in mundane routines.
- Acronym brilliance: LASER nails its own expansion; without 'a' of 'and' it still sounds cooler than most.
- Color theory detours aside, lasers are matter of frequency; different wavelengths = different energy, same physics, irresistible curiosity.
Who is mentioned in this episode?
9 people come up, including Charles W. Chuck Bryant, Josh Malcolm Clark, Albert Einstein.
- Charles W. Chuck Bryant (Person)
- Josh Malcolm Clark (Person)
- Albert Einstein (Person)
- Theodore Maiman (Person)
- Charles Townes (Person)
- Richard Spencer (Person)
- Noah Wyle (Person)
- Joey Sara (Person)
- Chris Hayes (Person)
Mentioned in this episode
- Lasers (Concept)
- Stimulated Emission (Concept)
- light (Concept)
- Stuff You Should Know (Podcast)
- Solid State Lasers (Technology)
- Pulse Lasers (Technology)
- Gas Lasers (Technology)
- Laser Cooling (Concept)
- Nuclear Fusion (Concept)
- Fiber Optic Communication (Concept)
- Laser Pointers (Product)
- Liquid Lasers (Technology)
- Lawrence Livermore Lab (Organization)
- Quantum Mechanics (Concept)
- iHeart Radio (Company)
- tattoo removal (Concept)
- Microwave Radiation (Concept)
- Vulcan Laser (Technology)
- Zeus Zetto (Technology)
- Bell Labs (Organization)