Even entry-level oscilloscopes today have simple math functions such as adding or subtracting two channels. But as [Arthur Pini] notes, more advanced scopes can now even do integration and differentiation. …read more (https://hackaday.com/2026/02/23/calculus-by-oscilloscope/)

How Safe Are Old Airbags, Anyway?
https://hackaday.com/2026/02/23/how-safe-are-old-airbags-anyway/

Automotive airbags are key safety devices that aim to reduce injuries and mortality in the event of motor vehicle accidents. These rapidly-inflating cushions act to soften the blow of an …read more (https://hackaday.com/2026/02/23/how-safe-are-old-airbags-anyway/)

Nuclear Waste Remediation by Proton Beam
https://hackaday.com/2026/02/23/nuclear-waste-remediation-by-proton-beam/

One of the issues with nuclear power plants is that they produce long-lived radioactive waste. Storing spent nuclear fuel is a real problem. However, researchers at the Department of Energy’s …read more (https://hackaday.com/2026/02/23/nuclear-waste-remediation-by-proton-beam/)

Tech In Plain Sight: Projection Clocks
https://hackaday.com/2026/02/23/tech-in-plain-sight-projection-clocks/

You wake up in the middle of the night. Is it time to get up? Well, you can look at the nightstand clock. Unless your partner is in the way. …read more (https://hackaday.com/2026/02/23/tech-in-plain-sight-projection-clocks/)

ATABoy is an Open Source USB Bridge For Old IDE Drives
https://hackaday.com/2026/02/23/ataboy-is-an-open-source-usb-bridge-for-old-ide-drives/

You can get an IDE to USB bridge from all the usual sources, but you may find those fail on the older drives in your collection– apparently they require drives …read more (https://hackaday.com/2026/02/23/ataboy-is-an-open-source-usb-bridge-for-old-ide-drives/)

X-Ray a PCB Virtually
https://hackaday.com/2026/02/23/x-ray-a-pcb-virtually/

If you want to reverse engineer a PC board, you could do worse than X-ray it.  But thanks to [Philip Giacalone], you could just take a photo, load it into …read more (https://hackaday.com/2026/02/23/x-ray-a-pcb-virtually/)

How to Restore your 19th-Century Lancashire Boiler to Hold 120 PSI
https://hackaday.com/2026/02/23/how-to-restore-your-19th-century-lancashire-boiler-to-hold-120-psi/

The Industrial Revolution was powered by steam, with boilers being a crucial part of each steam engine, yet also one of the most dangerous elements due to the high pressures …read more (https://hackaday.com/2026/02/23/how-to-restore-your-19th-century-lancashire-boiler-to-hold-120-psi/)

QUOD is a Quake-Like in only 64kB
https://hackaday.com/2026/02/23/quod-is-a-quake-like-in-only-64kb/