YouTuber Designs Cooling System for 1.5 kW LED, Creates Small Artificial Sun

If you happen to be in the market for a small artificial sun, you may be interested to know that for about $1300, you can get a tennis-ball-sized LED array that outputs 120,000 lumens.

Engineers improve infrared devices using century-old materials

After decades of intense research, surprises in the realm of semiconductors—materials used in microchips to control ...
Hackaday

This LED Strip Clock Aims To Make Your Next One Easier, Too

At first glance, it may look like [Rybitski]’s 7-segment RGB LED clock is something that’s been done before, but look past the beautiful mounting. It’s not just stylishly framed; ...
Tech Xplore

Researchers develop next-generation transparent electrode without rare metal indium

A joint research team led by Professors Han-Ki Kim and Bo Ram Lee from Sungkyunkwan University's School of Advanced Materials ...
Hackaday

Building A Heading Sensor Resistant To Magnetic Disturbances

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...