Chuck Nice
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Appearances Over Time
Podcast Appearances
It does, doesn't it?
So, you're absolutely right.
If I stretch you and the tape measure, you're still 5'9".
It's because of that fact that LIGO, Laser Interferometer Gravitational Wave Observatory,
has two lasers at right angles to each other.
So if one of them stretched, moving that way, it's not stretching the other one.
And it's those two path lengths that we compare with each other.
That's how we know if a gravitational wave washed over us.
We've got smart people designing this.
National Science Foundation, yeah.
So 1915, Albert Einstein puts forth the general theory of relativity.
A year later, he uses the general theory of relativity to predict the existence of gravitational waves.