The cost of a PHD in it?
Just kidding.
And there’s more...
Didn’t understand a word.
You’re a smart dude.
Now back to my Netflix B Horror Movie.
Bookmark.
Here’s something mind-bending about physics I’ve recently learned.
Einstein’s great dream was the “unified field theory,” under which the four fundamental forces of nature - electromagnetism, strong and weak nuclear, and gravity - would all be seen to have descended from the same force.
At very high energies, Einstein believed, these four forces could be seen to have condensed out of the same fundamental force.
In the 1970s, particle accelerators of sufficient power were able to generate conditions under which the electromagnetic force and the weak nuclear force coalesced into one force, the electroweak force.
One of the great mysteries was the question of gravity, which is enormously weaker than the other forces.
I never thought I could understand anything about that one. But just recently, in pursuing my hobby of listening to physics lectures on YouTube, I came across an insight into this question that amazed me.
In order to understand this, you have to be aware of one of the basic features of Einstein’s Theory of Relativity. That is that as an object of mass larger than zero approaches the speed of light, its mass increases. As its velocity gets very close to the speed of light, its mass increases dramatically.
Here’s the thing. In the very first nanoseconds of the big bang, the velocity of individual particles was so great, so close to the speed of light, that their individual masses were enormous. An individual quark could have a mass of millions of tons.
And this is the key. If subatomic particles have such enormous energies, their masses become enormous. So enormous that the force of gravity becomes comparable to the other forces.
The conditions for this to happen would only have existed for a tiny fraction of a nanosecond, something like a billionth of a nanosecond. But during that time, all four forces were of comparable strength, and in effect condensed out of the same fundamental force.
To me this is an awesome idea.
Stephen Crothers Destroys the Quackademic “Black Hole” & Relativity
https://www.youtube.com/watch?v=wRsGPq77X0Q
This is more astronomy based vs physics, but I found the event interesting, and more evidence of the immeasurable and infinite nature of space.
On June 14th, 2014, Astronomers using a telescope at the McDonald Observatory, in Fort Davis,Texas spotted a Gamma-Ray burst. This was a rare explosion of a Super-Nova 12.Billion light years away.
Gamma-Ray Bursts release more energy in seconds than the sun in its’ entire 10 Billion year lifetime.
This particular event occured not long after the Big Bang.
Not even approximately true. This "physicist" should learn about the rest of the electromagnetic spectrum.
Bookmark.
Bump
If you are in the back of a rocket traveling the speed of light and you walk to the front have you exceeded the speed limit?
bkmk
PhD (a.k.a.- Piled High and Deep). Yeah give this scientist another gov’t grant.
So how did you post the whole article without the strange text? :)
It’s posts like this that make me really miss Radio Astronomer!
Ed
bkmk
Some theorists think the 13.7 billion year old universe is 156 billion light years wide, which seems impossible. Nothing in reality is infinite so either the universe has an edge where light bounces back, or light curves until it starts heading back.
