Before flat screen technologies took over, we associate TV with the CRT. But there were other display technologies that worked, they just weren’t as practical. One scheme was the Nipkow …read more (https://hackaday.com/2024/11/10/building-a-diy-nipkow-disk-display/)

Component Tester Teardown
https://hackaday.com/2024/11/10/component-tester-teardown/

In the modern age, when you hear “component tester” you probably think of one of those cheap microcontroller-based devices that can identify components and provide basic measurements on an LCD …read more (https://hackaday.com/2024/11/10/component-tester-teardown/)

Building a Motor Feed For the UE1 Vacuum Tube Computer’s Paper Tape Reader
https://hackaday.com/2024/11/10/building-a-motor-feed-for-the-ue1-vacuum-tube-computers-paper-tape-reader/

Building a paper tape reader by itself isn’t super complicated: you need a source of light, some photoreceptors behind the tape to register the presence of holes and some way …read more (https://hackaday.com/2024/11/10/building-a-motor-feed-for-the-ue1-vacuum-tube-computers-paper-tape-reader/)

Hackaday Links: November 11, 2024
https://hackaday.com/2024/11/10/hackaday-links-november-11-2024/

Fair warning, while the first item this week has no obvious connection to hacking, when 43 Rhesus monkeys escape from a lab, it’s just something that needs to be discussed. …read more (https://hackaday.com/2024/11/10/hackaday-links-november-11-2024/)

Welcome to SubTropolis: the Limestone Mine Turned Climate-Controlled Business Complex
https://hackaday.com/2024/11/10/welcome-to-subtropolis-the-limestone-mine-turned-climate-controlled-business-complex/

After extracting all the useful stuff from a mine, you are often left with a lot of empty subterranean space without a clear purpose. This was the case with the …read more (https://hackaday.com/2024/11/10/welcome-to-subtropolis-the-limestone-mine-turned-climate-controlled-business-complex/)

Cheap Sensor Changes Personality
https://hackaday.com/2024/11/10/cheap-sensor-changes-personality/

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/