This reel depicts key events during entry, descent, and landing that will occur when NASA’s Perseverance rover lands on Mars February 18, 2021. In the span of about seven minutes, the spacecraft slows down from about 12,100 mph (19,500 kph) at the top of the Martian atmosphere to about 2 mph (3 kph) at touchdown […]

If you’ve never had the opportunity of witnessing such an event, here is a breathtaking video showing thousands of Starlings doing their “murmuration dance.” I’ve had the opportunity of witnessing this on a smaller scale a few years ago, but it was nothing like this, and the music used in the video makes the whole […]

This video is about how cheap, fast, and LESS sensitive rapid antigen tests might be better for screening (& maybe surveillance) than PCR COVID tests due to the nature of contagiousness/infectiveness at various points on the viral load trajectory of symptomatic and asymptomatic COVID sars-COV-2 carriers. [Minute Physics]

In 1947, explorers noticed a strange phenomenon while crossing the Pacific Ocean. Somehow, small squid known to live deep beneath the waves kept appearing on the roof of their boat. The crew was mystified— until they saw the squids soaring above the sea for roughly 50 meters. How and why do these marine creatures take […]

Takeoff and flight sequences of insects spanning 5 different taxonomic orders captured at 3,200 fps! 00:00 – weevils 01:44 – katydids 03:02 – bark lice 04:00 – march fly 04:59 – assassin bug 06:02 – katydid [Ant Lab]

Watch as Kathrine Frey Frøslie explains the epidemic r-number through crocheting, showing how fast Covid can spread through a population. Kathrine Frey Frøslie works as associate professor in Biostatistics, and runs the popular science knitting blog Statistrikk.no. The crochet work is made for the exhibition CoviDesign at Greve museum in Denmark, 2020/2021. [Statistrikk | Via […]