How to pronounce “deceleration” in English

S. PETE WORDEN: It's all about speed.And-- And then deceleration.S. PETE WORDEN: Well, initially you just fly by.

And the treadmill is crazy.Just a little bit of a deceleration-- about 120 meters per second deceleration-- and that's enough just to send us home.

And you look at the accelerations. When his parachute pops, they pack this thing so tight that it actually -- it's the equivalent of a mild rear-end collision, right?So there's a lot of deceleration and forces acting on the human body.And so, some of our sensors help detect that. Aerospace. And, of course, burning man, right?

So the one thing that gets squeezed like Vise-Grips in the middle of the night is this thing called a normal eight-hour sleep period.It's during deep sleep that we get cardiac deceleration.

collective gravity, that should, if it's strong enough, it should appreciably slow down this expansion. Well, the shocking result that came out ofthis was that they were seeing an acceleration in the expansion instead of a deceleration. So something was driving this, this acceleration.The universe wasn't slowing down. The expansion was speeding up.

the top right and you see indeed there's a little spot there in that Galaxy because the Hubble Space Telescope cando what Hubble did you can measure the total amount of matter in the universe by seeing the deceleration of the universe the

is larger. So there's a linear relation between distance and redshift. Now if -- that's all left over from the Big Bang and the exploding expansion of the universe.So what these groups were trying to do was to see if they could see the deceleration in this expansion. As all the galaxies in the universe feel theircollective gravity, that should, if it's strong enough, it should appreciably slow down this expansion. Well, the shocking result that came out of

And here's spectra of three supernovae that I studied in the early 1990s.That's the bottom line, is the data imply acceleration, rather than deceleration.