porkchop_d_clown - Slashdot User

Submission + - MOND isn't dead yet: Paper argues that gravity changes at very low accelerations 6

Submitted by porkchop_d_clown on Wednesday January 10, 2024 @03:19PM

porkchop_d_clown writes: MOND — MOdified Newtonian Dynamics is a hypothesis that Newton's law of gravity is incorrect under some conditions. Now a paper published at https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fiopscience.iop.org%2Fart... (and summarized at https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fphys.org%2Fnews%2F2024-01-...) claims that a study does indeed show that pairs of widely separated binary stars do show a deviation from Newton's Second Law, arguing that, at very low levels, gravity is stronger than the law predicts.

Submission + - Blood of world's oldest woman hints at limits of life (newscientist.com) 1

Submitted by porkchop_d_clown on Thursday April 24, 2014 @01:02PM

porkchop_d_clown writes: When Hendrikje van Andel-Schipper died in 2005, she was the oldest woman in the world. Today New Scientist is reporting that, at the end of her life, most of her white blood cells had been produced by just two stem cells — implying the rest of her blood stem cells had already died, and hinting at a possible limit to the human life span.

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