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.
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; ...
Each year in late spring, the forest fills with fireflies that flash in unison at Great Smoky Mountains National Park. The synchronous show draws so many spectators to eastern Tennessee that the park ...