Open Hardware 5V UPS Improves On Cheap Powerbank Design
https://hackaday.com/2022/01/31/open-hardware-5v-ups-improves-on-cheap-powerbank-design/

Often, we need to power a 5V-craving project of ours on the go. So did [Burgduino], and, unhappy with solutions available, designed their own 5V UPS! It takes a cheap …read more (https://hackaday.com/2022/01/31/open-hardware-5v-ups-improves-on-cheap-powerbank-design/)

Simple Setup Answers Complex Question on the Physics of Solids
https://hackaday.com/2022/02/01/simple-setup-answers-complex-question-on-the-physics-of-solids/

Thought experiments can be extremely powerful; after all, pretty much everything that [Einstein] came up with was based on thought experiments. But when a thought experiment turns into a real …read more (https://hackaday.com/2022/02/01/simple-setup-answers-complex-question-on-the-physics-of-solids/)

Radio Amateurs & Skywatchers Rejoice, Sat Operators Worry: Solar Storm Incoming
https://hackaday.com/2022/02/01/radio-amateurs-skywatchers-rejoice-sat-operators-worry-solar-storm-incoming/

How do you look back over your life and divide it up? Maybe by decades, cultural moments, or geopolitical events. For radio amateurs with older callsigns there’s a temptation to …read more (https://hackaday.com/2022/02/01/radio-amateurs-skywatchers-rejoice-sat-operators-worry-solar-storm-incoming/)

How The Hunga Tonga Volcano Eruption Was Felt Around The World
https://hackaday.com/2022/02/01/how-the-hunga-tonga-volcano-eruption-was-felt-around-the-world/

On the 14th of January, 2022, the Hunga Tonga-Hunga Ha’apai volcano began a gigantic eruption that would go on to peak in ferocity the next day. The uninhabited island volcano …read more (https://hackaday.com/2022/02/01/how-the-hunga-tonga-volcano-eruption-was-felt-around-the-world/)

Analog Computer Made From LEGO Predicts Tides
https://hackaday.com/2022/02/01/analog-computer-made-from-lego-predicts-tides/

Although the tides in the ocean are caused by the motion of the Sun and the Moon, both of which are easy to observe, accurately predicting the tide more than …read more (https://hackaday.com/2022/02/01/analog-computer-made-from-lego-predicts-tides/)

Did You Know That The Raspberry Pi 4 Has More SPI, I2C, UART Ports?
https://hackaday.com/2022/02/01/did-you-know-that-the-raspberry-pi-4-has-more-spi-i2c-uart-ports/

Remixed from Raspberry Pi 4 GPIO pinout diagram by Les Pounder (https://www.tomshardware.com/reviews/raspberry-pi-gpio-pinout,6122.html)
' data-medium-file="https://hackaday.com/wp-content/uploads/2021/12/hadimg_pi4_6spi_feat2.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/12/hadimg_pi4_6spi_feat2.png?w=800">We’ve gotten used to the GPIO-available functions of Raspberry Pi computers remaining largely the same over the years, which is why it might have flown a little bit under the …read more (https://hackaday.com/2022/02/01/did-you-know-that-the-raspberry-pi-4-has-more-spi-i2c-uart-ports/)

Renaissance-Style Drone Would Make da Vinci Proud Four Times Over
https://hackaday.com/2022/02/01/renaissance-style-drone-would-make-da-vinci-proud-four-times-over/