By Fascinating — Nov 09, 2024 "We must take information, wherever it is, make our copies, and share them with the world."RIP Aaron 🙏nostr:note1wa0pv3sjxk2ctaznqtt6sdmfrnplehs04yeamlzczge8gk7dgpkq0hj8se
This timelapse sequence shows how critical naval and aviation parts like a 900 mm diameter three-blade propeller or an aerospace propeller tank are 3D printed in stainless steel [📹 Meltio]
Born on this day in 1934, Carl Sagan was an astronomer, cosmologist, astrophysicist, astrobiologist, author, and a passionate advocate for science. Here are some of his most celebrated words. [from