How quickly do the discs cool?
Our new paper tries to answer this question! https://t.co/HgeDnBQu3K
We studied the kinematic signatures of gravitational instability in protoplanetary discs, and we found that the velocity perturbations are strictly connected to the cooling time!
All systems go for Crew Dragon’s test flight with @NASA astronauts @AstroBehnken and @Astro_Doug. Teams are keeping an eye on weather. Webcast will go live at ~11:00 a.m. EDT → https://t.co/bJFjLCilmc
The Euler-Lagrange Equation is hands down my favorite equation in all of physics. It's a surprisingly simple equation that describes how everything in the universe moves (if you can write down it's energy).
The best part is you derive it by assuming the universe is lazy
“If you are irresponsible enough to think that you don’t mind if you get the flu, remember it’s not about you - it’s about everybody else.”
Intensive care specialist Professor Hugh Montgomery explains why this coronavirus is different from the ordinary flu.