« December 29, 2020 | Main | December 31, 2020 »
December 30, 2020 Archives
Wednesday, December 30, 2020
TRACKING WITH CLOSEUPS: Clam Pollution Sensors
In Warsaw, “the main water pump has 8 clams that have triggers attached to their shells. If the water gets too toxic, they close, and the triggers shut off the city’s water supply automatically.” https://t.co/iP8EcpYR04
— Steve Stewart-Williams (@SteveStuWill) December 30, 2020
Posted at
23:38
THE HAPPENING WORLD: Large Objects in Low Earth Orbit over the Years
End of year tally of large (>100 kg) objects in low (<600 km) orbits versus time pic.twitter.com/0osGni4Ejx
— Jonathan McDowell (@planet4589) December 30, 2020
Posted at
21:13
CONTEXT: Ice Age Woolly Rhinoceros Carcass Found in Siberian Permafrost
BREAKING: Another extinct ice age beast exhumed from the permafrost. Exceptionally well-preserved carcass of a juvenile woolly rhinoceros discovered in Yakutia. Its internal organs and stomach contents await investigation. Photos by Valery Plotnikov. https://t.co/5TB8mwbajT pic.twitter.com/yw71lQf6Gf
— The Ice Age ❄️🌞 (@Jamie_Woodward_) December 29, 2020
Posted at
14:34
CONTINUITY: BLC1—The Proxima Centauri SETI Candidate
Posted at
12:30