continue…

Related to Practicalities of being a walking lightshow
Astrophotography on a budget
Astrophotography on a budget
23 min
A Brief History of Calendar Systems and Movable Feasts
A Brief History of Calendar Systems and Movable Feasts
26 min
Forgotten graphics technology: the wild workings of…
Forgotten graphics technology: the wild workings of the direct-view storage tube CRT
26 min