Every raindrop that hits the water in Puerto Rico's bioluminescent bays leaves a ripple of blue light, made by tiny dinoflagellates reacting to movement

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Edith Clarke, first professional female electrical engineer in the US, died #OTD in 1959. + Invented the Clarke calculator to solve electric power transmission problems faster (a precursor to modern smart grid tech) + 1st woman to earn an MS in electrical engineering from MIT, 1919🧵 #WomenInSTEM

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He is totally on the *Mark Rutte 🤣🤣🤣

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speed of change on the front and in drone tech is so rapid, what was good yesterday isn’t today. I’ve heard some NATO commanders suggest ‘well once it’s over, we can catch up and get the Ukrainians to teach us’. Except they have been teaching us in several exercises and nobody is changing to meet

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Elon Musk can whine and threaten me all he wants, but I'm still going to call out his bullying and abuse of power.

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