Professor Brian Greene explains Repulsive Gravity #astrophysics

[hoorayitsjackie]

Repulsive Gravity was my high school nickname. What a coincidence.

[percival]

Newton: Gravity pulls things
Einstein: THIS WORLD SHALL KNOW PAIN

[rickbrenner]

Imagine being Isaac Newton.
Geez. Invent calculus at 22 years old.
My 22 year old self would be resting on those laurels until my last dying breath. But Newton . . . he tells everyone to hold his beer.

[ndronikusri]

Each new character brings a new twist in the series! Lol

[seanspartan]

Repulsive Gravity sounds like a good band name.

[commander]

Einstein literally never ceases to amaze me

[dasmith]

"The detailed particle physics mechanism responsible for inflation is unknown. ... The hypothetical field thought to be responsible for inflation is called the inflaton." (Wikipedia)
You cannot take what Brian Greene says as scientific fact. Repulsive gravity is speculation, just like string theory.

[akshatkhatri]

Still can't wrap my head around hoe big of a monster Einstein really was. Ridiculous stuff.

[giovannidigitalart]

Giants standing on giants shoulders. That's how we move forward.

[topcat]

Imagine just as you have gravity compressing a star to infinity you have the opposite - empty space pulling a point infinitely out in every direction.

[ezekielcoffie]

Errm.... Nice explanation... But I have a little question.... In the early universe he mentioned, where did that little region of space that was uniformly filled with energy come from?

[BobCristofaro]

Now I know why I would always fall a sleep in class. I didn’t have a teacher like Greene

[sujiprem]

When he said " energy uniformly spread " could it be that energy in its purest form and of the same type of energy (everywhere), as even the purest form of energy must have minuscule amount of mass to prove its existance and having mass means to exhibit force and since like force repel each other(eg: magnetic force repel and attract based on field lines), in such the repulsion of those energy caused the big bang 🧐🧐
👍🏼👍🏼Do like if you agree to the above explanation if you think its correct 👍🏼👍🏼

👇🏻👇🏻Please share your comments if anyone would like to add anything 👇🏻👇🏻

[krrishmaheshwari]

I was watching this video in mute but still this man explained it beautifully!

[ryanbell]

It would never overcome all the mass that suddenly came into existence. There had to have been force outside of the equation.

[CrimsonDeathBed]

As someone who has literally studied this for over 20 years, that’s the first time I’ve heard explained this way

[somedudlivinginstcentury]

Wait there's 2 force inside a star right? The gravity pushing inwards trying to crush the core and the core pushing outwards trying to endure, what is that called? Nuclear something?

[BlaxkEdits]

Newtown and Einstein must be having fights and debates in heaven

[Lo.se]

even that energy would still have a edge, that would bend the fabric of space, assumably curving inward toward itself. unless the energy in question repels itself from the fabric, kind of like oil on water, but even then, there is still a inward curve toward the oil. to many variables to say this is correct.

[thecollector]

I always wonder about whether really there is no beginning (like the big bang) and no end - just infinity in both directions, so to speak, and whether that is just too difficult too comprehend for finite beings like ourselves...