List of alchemical substances - Wikipedia (en.wikipedia.org) angielski
“Many of these terms were in common use into the 20th century.”...
INTERPRETATIONS OF POWERS OF 10 (lemmy.sdf.org) angielski
A nice trip up and down the scale of things. I especially like the ones from 10^1 to 10^14, inhumane numbers attempting to be brought to a human scale....
Figs and Fig Wasps coupled sexual reproduction (www.scanofthemonth.com) angielski
Figs and fig wasps have a tightly coordinated reproductive cycle, and have been cospeciating for 70 to 90 million years. The pollination of figs is accomplished in an internal cavity only accessible to a specific species of wasp. The wasp enters through an opening that is only just large enough for it to get through, loosing...
An introduction to Shader Art Coding (www.youtube.com) angielski
A very good introduction to shader programming, goes through all the basics and offers lots of tools to help get you started. Get out there a program a shader.
Compressors - Turbine Engines: A Closer Look (www.youtube.com) angielski
A sort of museum style tour of some jet engine compressors at a repair shop.
The Physics of GriGri | When does No-Hands Belay Fail? (youtu.be) angielski
A well organized description of how a GriGri works, and when it fails. Based on good physics, not a lot of math in the video itself....
