Скачать или смотреть It’s Not Speed That Slows Time… It’s THIS | Richard Feynman

#TimeDilation #SpeedOfLight #Relativity

Ever wonder why light always travels at the same speed, no matter how fast you move? In everyday life, speeds add up—a ball thrown from a moving train goes faster relative to someone standing on the platform. But light? It doesn’t behave that way. Its speed in a vacuum is always constant.

And here’s the mind-blowing part: if that fact is true, then space and time can’t be absolute. Everything we thought we knew about “now” and distance changes when you follow the logic carefully.

In this lecture, we explore special relativity from first principles and reveal the astonishing consequences of a universe where the speed of light is constant:

✅ Why classical “velocity addition” fails at high speeds
✅ The relativity of simultaneity—there’s no universal “now”
✅ The light-clock thought experiment and time dilation
✅ Length contraction and why space depends on the observer
✅ Real-world experiments: fast particles, precision clocks, and confirmations
✅ How relativity affects everyday technology like GPS

This isn’t science fiction—it’s the direct consequence of one stubborn fact: the speed of light in a vacuum is the same for all observers.

📌 Important note (units correction): In one spot, a value is incorrectly listed in m/s. The correct value is:
c = 299,792,458 m/s (~3.0 × 10⁸ m/s). (“~186,000” is in miles per second, not meters per second.)

📌 Disclaimer: This is a dramatized, AI-narrated educational lecture. It is not an authentic recording of Einstein and is not affiliated with his estate or any institution. The script is original content designed to clearly explain real physics concepts: special relativity, time dilation, and the invariance of c.

If you enjoy this, don’t miss the next lecture:
Gravity | Einstein Explains Spacetime & The Arrow of Time | Einstein Explains Entropy

#Relativity #TimeDilation #PhysicsExplained #Einstein #Science