Does this explain what generates gravity?

Green comet Nishimura, mentioned back on page 82, survived its closest approach to the Sun, but was then buffeted by a potential coronal mass ejection that briefly blew its tail away.

NASA's Solar Terrestrial Relations Observatory (STEREO-A) spacecraft captured the event on the video included in this link:

https://www.livescience.com/space/c...l-solar-storm-as-it-slingshots-around-the-sun

Comet Nishimura reached its closest point to Earth on the 12th of September (2023!) and some braw foties were taken around that time.

This one was taken by Petr Horalek in Slovakia on September the 9th when Nishimura and Venus were in the morning sky:

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British media is biased as hell. Sancho rashford maguire the slabhead are all protected so much. Casemiro fred dalot degea all trown under the bus all the time. I cannot tell you enough how biased english media is. Its so anoying sometimes . Cant watch epl without torture these day with manunited as your team you support.
 
Thanks TNT.

Nobel Prize awarded to: Pierre Agostini, Ferenc Krausz, Anne L’Huillier, “for experimental methods that generate attosecond pulses of light for the study of electron dynamics in matter”

Attophysics is a branch of Physics new to me: https://en.wikipedia.org/wiki/Attosecond_physics

The scientists have generated attosecond (10^-18 s) photon pulses with which to study the rapid movements of electrons inside atoms and molecules.

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P.S. I liked this explanation: "An attosecond is so short that there are as many in one second as there have been seconds since the birth of the universe."
 
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I didn't think it was a very interesting line of Research TBH. Maybe just me...

I am taking a break from High Energy Physics for the moment. W and Z bosons and Photon Electroweak Symmetry breaking? The whole thing is incomprehensible.

Special Relativity and General Relativity seem soluble.

This freebie download is EXCELLENT!

Spacetime Physics Taylor Archibald Wheeler.jpg


https://www.eftaylor.com/spacetimephysics/

Horrible to read blurry PDFs, but the book is a whopping £80. Just the right amount of straightforward calculus and he avoids Tensors since it is aimed at 2nd and 3rd year undergraduates.

Spacetime.png


Every chapter knocks a new way of looking at things into you. I now know all about Momenergy (Chapter 7) as the Invariant that unifies mass, energy and momentum.

There is one about Black Holes too, but little baby steps first for me. It looks more difficult.

https://www.physlets.org/grorbits/GROrbitsApp.html

Fearsome looking homework involved. 🙁
 
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I am taking a break from High Energy Physics for the moment.

But, but... I've just recommended you to @wchang 🙁

I now know all about Momenergy...

Momenergy is better known as four-momentum to us spacetime experts - a generalisation of the classical 3-dimension momentum to 4-dimensional spacetime. https://phys.libretexts.org/Bookshe...eeler)/07:_Momenergy/7.6:_Momenergy_(Summary)

Looks simple enough! 😉

There is one about Black Holes too ... Fearsome looking homework involved. 🙁

As a mathematically challenged Applied Physicist, I've been experimentally simulating black hole orbits on my record player turntable:

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