Everything Everywhere Daily: History, Science, Geography & More Cosmic Rays
Sep 16, 2021
Your body is constantly bombarded by cosmic rays, and this podcast uncovers their fascinating impact. Discover the intricate history of cosmic ray research and the physics behind these energetic particles. Learn how their intensity varies with geography and the Earth's magnetic field. The effects on technology are surprising, with cosmic rays even causing electronic voting malfunctions. Additionally, explore the challenges they pose for space travel and the resilience of life in the face of low radiation exposure.
AI Snips
Chapters
Transcript
Episode notes
Nature and Energy of Cosmic Rays
- Cosmic rays are mostly atomic nuclei, primarily protons and helium nuclei, not photons as originally thought.
- They carry incredibly high energy, with some particles more powerful than those in the Large Hadron Collider.
Cosmic Rays and Human Exposure
- Most cosmic rays don't reach Earth's surface because they collide with air molecules and create particle showers.
- Even if cosmic particles hit you, they pass through unnoticed without harm.
Managing Cosmic Ray Exposure
- Living at higher altitudes or flying increases your exposure to cosmic ray radiation.
- However, cosmic rays generally pose no significant health risk due to our DNA repair mechanisms.