We like scale models here, but how small can you shrink the very large? If you’re [Frans], it’s pretty small indeed: his Micro Tellurium fits the orbit of the Earth …read more (https://hackaday.com/2025/06/21/tiny-tellurium-orbits-atop-a-pencil/)

Measurement is Science
https://hackaday.com/2025/06/21/measurement-is-science/

I was watching Ben Krasnow making iron nitride permanent magnets and was struck by the fact that about half of the video was about making a magnetometer – a device …read more (https://hackaday.com/2025/06/21/measurement-is-science/)

Retrotechtacular: 1970s Radio
https://hackaday.com/2025/06/21/retrotechtacular-1970s-radio/

Before YouTube, you had to watch your educational videos on film. In the 1970s, if you studied radio, you might have seen the video from Universal Education and Visual Arts, …read more (https://hackaday.com/2025/06/21/retrotechtacular-1970s-radio/)

Converting an E-Paper Photo Frame into Weather Map
https://hackaday.com/2025/06/21/converting-an-e-paper-photo-frame-into-weather-map/

Here’s a great hack sent in to us from [Simon]. He uses an e-paper photo frame as a weather map! By now you are probably aware of e-paper technology, which …read more (https://hackaday.com/2025/06/21/converting-an-e-paper-photo-frame-into-weather-map/)

EU Ecodesign for Smartphones Including Right to Repair Now In Effect
https://hackaday.com/2025/06/21/eu-ecodesign-for-smartphones-including-right-to-repair-now-in-effect/

Starting June 20th, any cordless phone, smartphone, or feature phone, as well as tablets (7 – 17.4″ screens) have to meet Ecodesign requirements. In addition there is now mandatory registration …read more (https://hackaday.com/2025/06/21/eu-ecodesign-for-smartphones-including-right-to-repair-now-in-effect/)

Replacing Crude Oil Fractional Distillation With Microporous Polyimine Membranes
https://hackaday.com/2025/06/21/replacing-crude-oil-fractional-distillation-with-microporous-polyimine-membranes/

Currently the typical way that crude oil is processed involves a fractional distillation column, in which heated crude oil is separated into the various hydrocarbon compounds using distinct boiling points. …read more (https://hackaday.com/2025/06/21/replacing-crude-oil-fractional-distillation-with-microporous-polyimine-membranes/)

Tamagotchi Torture Chamber is Equal Parts Nostalgia and Sadism
https://hackaday.com/2025/06/21/tamagotchi-torture-chamber-is-equal-parts-nostalgia-and-sadism/

Coming in hot from Cornell University, students [Amanda Huang], [Caroline Hohner], and [Rhea Goswami] bring a project that is guaranteed to tickle the funny bone of anyone in the under-40 …read more (https://hackaday.com/2025/06/21/tamagotchi-torture-chamber-is-equal-parts-nostalgia-and-sadism/)

An Adaptive Soundtrack for Bike Tricks
https://hackaday.com/2025/06/22/an-adaptive-soundtrack-for-bike-tricks/