Physics & Chemistry yays

[Jubal]

Since we have these for history, space, palaeontology, and nature, I thought a physical sciences one might be good.

And this video on making a cloud chamber at home was moderately amusing:

[Tusky]

More of a robotics yay.

This made me chuckle, then suddenly genuinely wonder if we are headed for a matrix / terminator style dystopian future.

I, for one, welcome our new robot overlords.

[Jubal]

https://www.scientificamerican.com/article/the-universe-is-not-locally-real-and-the-physics-nobel-prize-winners-proved-it/

I found this piece on the latest Physics nobel and its meaning for our understanding of reality really interesting if also very hard to think around.

[Jubal]

Am not enough of a physicist to understand this in depth, but apparently Dark Energy might not be a constant which has a lot of effects on how we understand the expansion of the universe...




Link:
https://www.scientificamerican.com/article/dark-energy-measurements-suggest-the-universe-might-be-way-weirder-than-we/

This spring scientists announced that something is wrong with the fireworks. For the first time since the discovery of dark energy—the mysterious force that is accelerating our cosmic fireworks show—cosmologists think we may be on the cusp of something new. Two prominent dark energy surveys seeking to measure the nature of this force found evidence that dark energy seems to have weakened over time.

"If it is true, it is a big deal," says Licia Verde, a theoretical cosmologist at the Institute of Cosmos Sciences of the University of Barcelona in Spain and a member of the collaboration reporting the oddity. "But as usual, extraordinary claims require extraordinary proofs."

Dark energy was assumed to be a constant force in the universe, as unchanging and reliable as the forward march of time. If the new results are right, it is changeable after all.