2min chapter

Lex Fridman Podcast cover image

#213 – Barry Barish: Gravitational Waves and the Most Precise Device Ever Built

Lex Fridman Podcast

CHAPTER

How Much Do We Reduce the Shaking of the Earth?

Inside this it's harder than the the earphone problem but it's just engineering we have to see measure not just that the engines still made noise but the earth is shaking. We put seismometers inside this array of shock absorbers and measure the residual motion and its direction. "We put little actuators that push back against it and cancel it that's awesome"

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