if something happened to the black hole at the center of our galaxy, could we know about that problem before it affected us?
We know that light and even gravitational waves propagate at the speed of light....
How does a signing a post with a pgp key prove that you are actually the person behind the post?
I saw that people on the dark web would sign their posts with a PGP key to prove that their account has not been compromised. I think I understand the concept of how private and public keys work but I must be missing something because I don’t see how it proves anything....
What if solving interstellar travel isn't about figuring out faster than light propulsion, but how to extend our own lives?
So I was day dreaming and I caught a thought. What if what we understand about physics is actually all there is to understand? What if you objectively cannot move faster than the speed of light because you can’t do the time traveling things necessary. This would mean that the only way to travel amongst the stars would be to...
Is The Thought Emporium real? ( www.youtube.com )
cross-post: lemmy.world/post/1426387...
Do metals concentrate at the bottom of boiled water after being cooled off?
Tell me about the physics of material "falling onto a neutron star and emitting hard x-rays" ( lemmy.world )
piped.video/watch?v=simuXjzxlGI&t=380...
How young are the youngest fossils?
And how old are the oldest bones?
Ongoing and curated list of good streaming science videos?
I really enjoy videos about science, but they are getting harder to find on modern platforms. Is there a community out there dedicated to discussing and recommending good content regardless of platform?...
Did Folding@HOME or other distributed computing projects actually make a significant difference in the creation of COVID vaccines?
Like many, when I heard about Folding@HOME and how I could contribute to the fight against COVID, I put my hardware to work. Now that’s it has been a while, what effect did those projects ultimately have on the outcome? Did it actually help with the creation of vaccines, or was it effectively just a massive waste of energy?
Looking for experiment design advice (Electroencephalogram)
cross-posted from: lemmy.world/post/1133081...
If we have such a high field of vision, why can't we focus on everything within the vision simultaneously?
Why is it that I am not able to read a book without moving my eyes if the entirety of the page is within my field of view? Why do I have to center my eyes on an object to observe it fully? And why is it that I am still able to view changes in surroundings in the edges of my field of vision despite there being supposedly no way...
What was the historical science debate that seems silliest in hind sight?
I’m thinking of things like heliocentrism where there was some modern discovery or revelation by science that invalidated a common assumption prior....