How Do Lasers Work? – Physics & Light Science for Kids

How Do Lasers Work? – Physics & Light Science for Kids

From STEM with Dr. Owl by Orbital Owl

May 27, 2026 · 12 min · Episode 214

About this episode

This episode explores the physics of light and how lasers function in various applications, including safety mechanisms.

Discover the physics of light and exactly how lasers work to measure, scan, and communicate in the real world. We answer an excellent question about whether garage doors use real lasers or invisible infrared safety beams to prevent accidents. Join the team as they explore the difference between regular spreading light and highly organized laser beams, complete with a marching parade analogy and a hilarious grocery store scanning mix-up! Learning Connection: NGSS DCI: PS4.B – Electromagnetic Radiation

People in this episode

Host: Dr. Owl

Topics covered

  • lasers
  • physics
  • light science
  • safety beams
  • electromagnetic radiation

Keywords

  • lasers
  • light
  • physics
  • safety beams
  • electromagnetic radiation
  • garage doors
  • infrared

Mentioned in this episode

Organizations: NGSS

Books & works: How Do Lasers Work?

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