If you want to add humidity and temperature sensors to your home automation sensor, you can — like [Maker’s Fun Duck] did — buy some generic ones for about a …read more (https://hackaday.com/2024/11/10/cheap-sensor-changes-personality/)

Why the Saturn V Used Kerosene for its Hydraulics Fluid
https://hackaday.com/2024/11/11/why-the-saturn-v-used-kerosene-for-its-hydraulics-fluid/

Gimbal systems proposed for the F-1, oxygen-kerosene engine. The fueldraulic system (left) is simpler, with fewer components than the high-pressure hydraulic system. To simplify the illustration, flexible fittings and hose, and lines to other gimballing actuators and to other fluid power systems on the S-IC stage are not shown. (Source: Hydraulics & Pneumatics, 1963)
" data-medium-file="https://hackaday.com/wp-content/uploads/2024/11/fueldraulic_system_saturn_v_s-1c_f1_engine.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2024/11/fueldraulic_system_saturn_v_s-1c_f1_engine.jpg?w=800" tabindex="0" role="button">We usually think of a hydraulic system as fully self-contained, with a hydraulic pump, tubing, and actuators filled with a working fluid. This of course adds a lot of weight …read more (https://hackaday.com/2024/11/11/why-the-saturn-v-used-kerosene-for-its-hydraulics-fluid/)

The Constant Monitoring and Work That Goes into JWST’s Optics
https://hackaday.com/2024/11/11/the-constant-monitoring-and-work-that-goes-into-jwsts-optics/

The James Webb Space Telescope’s array of eighteen hexagonal mirrors went through an intricate (and lengthy) alignment and calibration process before it could begin its mission — but the process …read more (https://hackaday.com/2024/11/11/the-constant-monitoring-and-work-that-goes-into-jwsts-optics/)

Keebin’ with Kristina: the One With All the Espionage
https://hackaday.com/2024/11/11/keebin-with-kristina-the-one-with-all-the-espionage/

[Ziddy Makes] describes this cute little guy as a biblically-accurate keyboard. For the unfamiliar, that’s a reference to biblically-accurate angels, which have wings (and sometimes eyes) all over the place. …read more (https://hackaday.com/2024/11/11/keebin-with-kristina-the-one-with-all-the-espionage/)

Britain’s Oldest Satellite on the Move: a Space Curiosity
https://hackaday.com/2024/11/11/britains-oldest-satellite-on-the-move-a-space-curiosity/

Source: Vecteezy
" data-medium-file="https://hackaday.com/wp-content/uploads/2024/11/lost-skynet-1a-1200.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2024/11/lost-skynet-1a-1200.jpg?w=800" tabindex="0" role="button">Space and mystery always spark our curiosity, so when we stumbled upon the story of Skynet-1A, Britain’s first communication satellite from 1969, we knew it was worth exploring. The BBC …read more (https://hackaday.com/2024/11/11/britains-oldest-satellite-on-the-move-a-space-curiosity/)

A Handheld Replica Sound Voltex Game
https://hackaday.com/2024/11/11/a-handheld-replica-sound-voltex-game/

Sound Voltex is a music game from Konami; in fact, it’s a whole series of arcade games! [Luke] is a big fan, so decided to build a hardware handheld to …read more (https://hackaday.com/2024/11/11/a-handheld-replica-sound-voltex-game/)

Z80 Testing the 80s Way
https://hackaday.com/2024/11/12/z80-testing-the-80s-way/

According to [MTSI], if you used a Z80 chip back in the 1980s, it almost certainly passed through the sole Fairchild Sentry 610 system that gave it the seal of …read more (https://hackaday.com/2024/11/12/z80-testing-the-80s-way/)

Minuteman ICBM Launch Tests Triple Warheads
https://hackaday.com/2024/11/12/minuteman-icbm-launch-tests-triple-warheads/