The Zero-Power Flight Computer https://hackaday.com/2026/03/23/the-zero-power-flight-computer/
#History #Retrocomputing #E6b #Flightcomputer #Navigation #Sliderule

Today's bike ride needed a little calculation. 60 minutes at 10.9 mph, plus 5 more minutes when my bike computer app was off, equals 11.8 miles. #SlideRule #FlightComputer

In this session, Alex Arthur (@JamesA) shared an odd fountain they found whilst travelling that is both mathsy and artsy. @Tony_Mann showed us a magic square, which is interesting whichever way you look at it: https://www.markfarrar.co.uk/chris-wardles-reflections-magic-square.htm. We revisited (a kind of) slide rule with @gavan Fantom, who told us about Mechanical Flight Computers. We then heard from @pozorvlak about lathes, and cool shapes that can be produced using them (including a https://en.wikipedia.org/wiki/Hypotrochoid) Vanessa Madu talked about modelling an ocean and the commendable properties of rubber ducks for this: https://en.wikipedia.org/wiki/Friendly_Floatees_spill. Following this, Joey Marianer spoke on the Prisoner's Dilemma and intuition (see https://www.lesswrong.com/posts/HFyWNBnDNEDsDNLrZ/the-true-prisoner-s-dilemma for more info). @andrewt then spoke about a graphics trick used in old videogames to rotate sprites - just do three shears! #mathsjam #maths #fountain #strasbourg #magicsquares #sliderule #flightcomputer #modelling #rubberducks #ocean #prisonersdilemma #graphics #videogames #shears #imagerotation

BPS.Space Succesfully Lands A Model Rocket https://hackaday.com/2022/08/05/bps-space-succesfully-lands-a-model-rocket/ #thrustvectoring #flightcomputer #modelrocketry #joebarnard #bps.space #mischacks