WaveDudeNext 2D Wave Simulator
WaveDudeNext is a 2D wave simulator hosted on GitHub. The page returned a 504 timeout, so no further details were available. (github.com)
A four-week study found that taking 3 grams of creatine daily improved several measures of cognitive function in women. The most consistent gains were in reaction time, working memory, and inhibitory control - the ability to resist an automatic response. Older women generally showed larger cognitive responses than younger women. The reported summary does not specify how many participants took part or describe the tests, so the key findings presented are the duration, dose, and areas of cognition that improved.
The results draw attention to a possible brain benefit at a dose commonly used to support muscle, rather than only at higher amounts. Creatine is also relevant to women who do resistance training, particularly after menopause, when preserving muscle and strength becomes increasingly important. The commentator takes 10 grams daily in part because of research into creatine and brain health, and says the reported effects at 3 grams are noteworthy. The findings suggest that a relatively low daily dose may support both physical and cognitive goals, while underscoring the need to study these effects further in women, including older women.
Summary generated by AI from the linked article. hn.today is not affiliated with Hacker News or Y Combinator.
WaveDudeNext is a 2D wave simulator hosted on GitHub. The page returned a 504 timeout, so no further details were available. (github.com)
The Maya used mercury-rich red paint extensively. Sediments suggest the pigment contaminated their water with mercury. (livescience.com)
The four-2s puzzle can make many numbers using arithmetic, factorials, and other mathematical tools. A nested-square-root formula with logarithms provides a general construction for any natural number, using exactly four 2s. (eli.thegreenplace.net)
NASA is accepting applications for its next astronaut class through December 3. Applicants must meet NASA’s education, experience, and medical requirements. (nasa.gov)
Microbes can survive space for years or decades when dust or crevices shield them from lethal ultraviolet light. Their ability to remain viable has implications for spacecraft contamination, life spreading through the early Solar System, and finding life on Mars or asteroids. (mceglowski.substack.com)
Air holes patterned into silicon wafers create flat mirrors that focus ultraviolet light. The design could enable more compact optical systems. (phys.org)
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