The fundamentals of space-time: Part 3 - Andrew Pontzen and Tom Whyntie
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In the first two lessons of this series on space-time, we've dealt with
objects moving at constant speeds, with straight world lines, in
space-time. But what happens when you throw gravity into the mix? In
this third and final lesson, CERN scientists Andrew Pontzen and Tom
Whyntie explore what gravity means for space-time -- or rather, what
space-time means for gravity.
Most forces apply only to certain types of particles and not to others. The electric force, for instance, is only felt by charged particles (like electrons or protons), and is not felt by neutral particles (like neutrons or neutrinos). Experiments show that gravity is special: It applies equally to all matter and energy. Why is this experimental result crucial to Einstein’s description of gravity?
About Space Ed
Space Ed helps you untangle the mysteries of space with the universe’s best videos on everything from Einstein's theory of relativity to what it would take to live on Mars. Brush up on the science, philosophy and mystery of space, because the fabric of the universe is the same fabric that connects us all.
Meet The Creators
- Narrator Tom Whyntie, Andrew Pontzen
- Director Patrick Semple, Mark Fisher, Daniel Spencer
