By Fascinating — Jun 03, 2025 Close helmet adorned with an embossed eagle’s head, expertly crafted in steel with intricate etching. Made in Nuremberg, Germany, around 1530. This post and comments are published on Nostr.
Visualizing the proton: an animation by MIT. The subatomic particle is actually a sea of quarks that spontaneously appear and annihilate, returning to nothingness, with only three “extra” quarks giving
How long commercial airplane would take to reach each planet, if possible (speed ~ 900 km/h or 559 mph)…