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Traditionally, algorithms for counting distinct items in a stream of data would store all the items. A new algorithm, called CVM, uses randomization to estimate the number of distinct items with minimal memory usage. The trick is to keep track of items by recording them and then randomly deleting some. The probability of an item...
The positively charged particle at the heart of the atom is an object of unspeakable complexity, one that changes its appearance depending on how it is probed. We’ve attempted to connect the proton’s many faces to form the most complete picture yet.
Terence Tao, who has been called the “Mozart of Mathematics,” wrote an essay in 2007 about the common ingredients in “good” mathematical research. In this episode, the Fields Medalist joins Steven Strogatz to revisit the topic.
I’ve been saying this for about a year since seeing the Othello GPT research, but it’s nice to see more minds changing as the research builds up....
Aging can seem like an unregulated process: As time marches along, our cells and bodies inevitably accumulate dings and dents that cause dysfunctions, failures and ultimately death. However, in 1993 a discovery upended that interpretation of events. Researchers found a mutation in a single gene that doubled a worm’s life span;...
The development of attosecond pulses of light allowed researchers to explore the frame-by-frame movement of electrons....
if any ;)
Years before she was even sure the James Webb Space Telescope would successfully launch, Christina Eilers started planning a conference for astronomers specializing in the early universe. She knew that if — preferably, when — JWST started making observations, she and her colleagues would have a lot to talk about. Like a time...
cross-posted from: lemmy.world/post/2186597...
Astronomers have found a background din of exceptionally long-wavelength gravitational waves pervading the cosmos. The cause? Probably supermassive black hole collisions, but more exotic options can’t be ruled out.
