WormRabbit
WormRabbit t1_j8vu6qa wrote
Reply to comment by CrateDane in Is blood toxic to neurons ? by AdEnvironmental8339
What is the blood-brain barrier physically made of? If I opened a head, what would it look like?
WormRabbit t1_j20xcc1 wrote
Reply to TIL about Nehebkau, the ancient Egyptian snake god. It’s appearance is that of a big snake with feet. by barely_engineered
Fun fact: snake have rudimentary legs. The leg bones can be found inside of their body. Perhaps the ancient egyptians have noticed those weird little bones.
WormRabbit t1_iwgyixd wrote
Reply to comment by DatTF2 in AMD Now Powers 101 of the World's Fastest Supercomputers by Avieshek
Their compiler also produced very inefficient code for AMD chips. Not because they didn't implement the optimizations, but because they detected at runtime your CPU model and used the suboptimal code paths.
WormRabbit t1_ispz6oq wrote
Reply to comment by CascadingMonkeys in TIL Liquid Helium is the perfect element to keep the superconductive magnets in MRI machines cold by Alternative-Leg1095
It's not a finite resource. Helium is among the most common byproducts of nuclear fission (not fusion). Every nuclear reactor produces plenty of helium. In fact, the war in Ukraine had a noticeable effect on helium supply, because Ukraine has many nuclear reactors.
Consequently, it is also renewable within the Earth's crust, though I don't know whether it renews fast enough to matter.
WormRabbit t1_je6l1oq wrote
Reply to comment by Putrid-Repeat in Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga
About 1000 AU. For comparison, the distance from Sun to Pluto is 39 AU, and the Oort cloud spans from 2000 to 100 000 AU.