Science!

Our biology teacher brought this up when I was in college some hundred years ago.
The fact that it doesn't seem publicly known, could be interesting from a psycho-social POV?
There is the, probably related, "rumored" phenomenon of recipients of transplanted organ taking on personality traits of the donor. This discussion appear suppressed and there seem to be no academic efforts to learn more.

This video makes a decent attempt to try to make gravity, according to the General Theory of Relativity, intuitively understandable. So this is how the curvature of spacetime, close to matter, results in what we experience as 'Gravity'.

What the hell is "artificial gravity manipulation"?

I don't know what you're thinking about here. But remember that simulated gravity is not really "gravity", just some kind of acceleration.
Otherwise, we can manipulate both time and gravity by varying mass and proximity to mass, and speed. But obviously not much, without science fiction technology.
And as the video explained, one absolutely do need to consider these things in some areas of practical engineering, like GPS, for example.

Actually, in my HP 50G calculator, I've built - among other things - a standard model of the atmosphere. The atmosphere is pretty complicated - and I don't mean weather and meteorology -. Computing the density and local speed of sound is remarkably messy. One of the many things one has to consider is that the gravity varies very slightly with altitude (= distance from mass). But of course, Newton's model is better, as it's far simpler than The General Theory of Relativity for that purpose.

Can you give me some links to read about the stuff you are talking about? Never heard that someone has figured out how to cancel gravitational effects.

Oh, news from the field of theoretical physics (and that does not happen very often ).

Apparently, researchers have proposed a solution to the Page paradox of how black holes can shed information content. Can't say I understand all of it as it really involves pretty much all the complicated processes of quantum mechanics and theoretical physics from quantum entanglement through AdS/CFT duality to gravitational path integral. But there is a new mathematical approach to explain how information about anything that was absorbed by a black hole is not lost but can be reacquired over it's life time.

www.quantamagazine.org/the-black-hole-information-paradox-comes-to-an-end-20201029/

There is a lot of math that simply doesn't add up when it comes to politicians', journalists' and Greta's delusions about windmills and solar power.
As in it's actually not possible. The amount of materials that have to be produced, for/and the production&build of powerplants, demand a lot of everything, including power, in order to keep a power infrastructure constant, as powerplants reach the end of their life and need to be constantly replaced. ...So actually, the needed power is greater. ...Which means we have to have even more powerplants. ...So actually, the needed power is greater. ...I'm just sketching the nature of the problem.

...But, it's not completely impossible that solar panels might eventually rise to the challenge. We'll see. My bet is still nuclear power.

Because, meanwhile, at least one crux may have a solution that changes the math significantly: The energy storage. All so far proposed and tried forms of energy storage are too inefficient, or combine high costs with short lifespan and unsustainable dependence upon limited resources. But it seems some guy have finally cracked the everlasting problem of limited number of charge cycles in batteries. And it doesn't stop there. The batteries could end up rather cheap, and they do not rely on limited resources.
Downside: They have to be big, heavy and stationary. Their operating temperature is 500 deg C. They contain lots of a very toxic material.
But hey, we could live with Lead batteries, and it's not like the Cobalt in our Lithium batteries is any better, so why whine about Antimony?
The efficiency is high, 80%, and they can be fully charged and discharged every day for many, many years, without any degrading. Their lifespan is probably just limited by their physical construction which has to hold up to constant high temperature.

I read a theory that shortly after the big bang, during a period where the overall temperature of the universe was about that of a mild summer day in the continental United States...

That life existed all those billions of years ago, in a state so "quickened" compared to our own, that by the time you get this far in my post entire generations have happened.

Following that, if the big freeze happens, you might have forms of life (trillions^ years in the future) that take a million years to form a thought that spans an entire cluster.

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On a more local level, I saw a projection for what Earth might look like in 30000 A.D. and it looks pretty cool.

To be blunt, the polar ice caps would be gone, due to the decamillenial shift our planet takes.

Hawaii would have a new island, the Mississippi Bay would link the Atlantic to the coast of Missouri, and the Saharan Rainforest would be a very lively place.

It didn't show the rest of the world (odd), but it's thought-provoking stuff for what our system will look like when our datation system has to accommodate years that have 5 digits.

You get to the millions-range, and the Apollo footsteps fade, Mars gains rings, and Saturn loses them.

Constellations begin to wander, and once you start hitting the billions-range, Sol starts expanding.

Boom.

I wonder what advanced humans 5 billion years from now would think or do.
Maybe gather around a trans-galactic matter-lens to bid a final farewell to our ancestral home?

Here's a predicted take on the future of our universe, from now until the eventual heat death.

No one posted here yet today? :0


Also as a little treat, here is a video from the guy who usually makes ninja warrior courses for squirrels and prank packages for lawn thieves, going back to his old employer before he became a youtube star (spoiler alert, it's NASA) to talk about Mars rovers:

It was all going on in the proper thread: 'Aircraft/Spacecraft/Aviation thread.  

Now, when the Rover has landed, the science starts.