#compasses — Public Fediverse posts

Defence Blog: Russia’s cutting-edge drone upgrade is a $2 camping compass. “A Ukrainian radio technology specialist says Russia has started bolting a basic magnetic compass onto its cheap Molniya attack drones, with an onboard camera that periodically tilts down to read it, giving the drone a way to hold its bearings even when every satellite signal it depends on has been jammed into static.”

MakeUseOf: The compass app on your phone is not as reliable as you think. “You’ll notice that, outside of the magnetized needle, old-school compasses don’t typically feature magnetic metals. The compass chassis is often made out of plastic, and if it’s made out of metal, it is a non-magnetic metal like aluminum or brass. This is because other magnetic parts can interfere with the magnetized […]

I made some unique compasses where the tips stay always straight by design:
https://youtu.be/Vx2QFlEgfpo
#compasses #design #crafting #steampunk #tool

Drawing and illustrating in the pre-digital time (2019)
https://www.daube.ch/docu/glossary/drawingtools.html
#ycombinator #french_curve #square #t_square #compasses #ruler #pantograph #camera_lucida #drawing_template #ellipse #drawing_pen #scale #slide_rule

#Compasses to point true #north for first time in 360 years | #Science | The Guardian

https://www.theguardian.com/science/2019/aug/30/compasses-to-point-true-north-for-first-time-in-360-years

#Navigation #Geology #Greenwich #UK #Geomagnetism