An athlete uses physics to shatter world records Asaf BarYosef
In the early 1960s, Dick Fosbury tried his hand at almost every sport, but never excelled at anything, until, at the age of 16, he turned to the high jump. But when he couldn't compete against the strong athletes at his college using the standard high jump techniques of the time, Fosbury tried to jump a different way: backwards.
Instead of jumping with his face towards the bar, bringing each leg over in the traditional straddle method, he jumped with his back towards the bar. Fosbury improved his record by over half a foot, and left his coaches amazed by this strange new style of high jumping. During the next few years,
Fosbury perfected his high jump style, won the U.S. National trials, and assured his place in the 1968 Olympics in Mexico. In the Olympic Games, Fosbury amazed the world with his new technique, winning a gold metal with an Olympic record leap of 2.24 meters. By the next Olympic Games, almost all of the competing of high jumpers
had adopted what came to be known as the Fosbury Flop. What's the secret behind the techniqueé It lies in a physics concept called the center of mass. For every object, we can locate the average position of all of its mass by taking into account how the mass
is spread around the object. For instance, the center of mass of a flat, rectangular object of uniform density will be in the intersection of both diagonals, in equal distance from each corner. We can find the center of mass for other objects by similar calculations, or by finding the object's balancing point,
which lies right underneath its center of mass. Try balancing a broom by holding it and slowly bringing your hands together until they meet. This balancing point lies right underneath the broom's center of mass. We humans also have a center of mass. When most people stand up, their center of mass is around the belly,
People Who Are Afraid Of Heights Jump Off A Cliff
Woman Three, two, one. (yelling) â™«Higher â™«Yeah â™«You take me higher â™«Yeah â™«You take me higherâ™« I am horrified of heights.
I think the best thing youcan do is face your fears otherwise you're just controlled by them. (crying) (yelling) I did it. I hit my ass. I fucking did it. Hopefully like that fightor flight thing will kick in,
and I'll go. (yelling) It was so scary. I feel like I have an actualbowling ball in my stomach. Kind of don't know whetherI'm going to puke or shit. That was the fucking scariestthing I've ever done. I would have a reoccurringdream where I was like sitting on a ledge and I fell.
Kind of like this. Man Three, two. (screaming) (laughing) â™«Higher â™«Yeah â™«You take me higherâ™« What if it's not deep enoughé
(yelling) Man Three, two, one (crowd exclaims) I know, I got nervous. Man All right,Michelle, let's call it. Eddie say, first and foremost, be safe. (dramatic music) I was very humbled at the top.
It was a little too much for me. So, I'm glad I made the small step, embarrassed that I triedto like do something that was a little bit out of my league. Your whole body is saying,you should not be doing this. I feel a lot betterthat I did it though. Once you're up there,it's higher than it seems. Face your fear head on and realize,
Felix Baumgartners supersonic freefall from 128k Mission Highlights
Release! I know the whole world is watching nowâ€¦ I'm going home now. Jumper away. Speed 725. Showing Felix at a stable descent. And Felix is back down to Earth safely. The new world record holder.