The Flash You've Never Seen (Physics Level 8)
· 8:47 · S3 E7
Episode The Flash You've Never Seen (Physics Level 8)
That invisible flash is a cousin of the light you read by, and of your microwave, your dentist's X-ray and sunburn. They're all one family. By the end you'll know the family in order, why they all travel at the same speed, and how a thing's place in the line tells you whether it heats your dinner or damages your cells.
The listener can recite the spectrum in order. They can state that all of it moves at the speed of light and crosses a vacuum, and they can predict from where something sits in the line whether it's a handy tool or a hazard. The one ordered line explains both halves of the topic, uses and dangers.
Sources:
• https://courses.ems.psu.edu/astro801/content/l3_p4.html
Source: Episode 7 - Physics Level 8, Invisible Light (7/17) Style: Exam prep Length: 1289 words, 7 min target Generated: 2026-10-25
Links in the notes 1
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