Instead of LEDs, the party trick of his earring is an electric motor that makes it spin, and instead of giving out light it takes it in as solar power. The motor is a pager alert device ...

While investigating the RF interface used in a series of cheap “smart” solar inverters [Aaron Christophel], created an Arduino library to receive inverter telemetry using a $2 RF module.

Although the other giant planets in the Solar System have rings, too, they are nothing like Saturn's. Jupiter, Uranus, and Neptune are all banded by dainty, ethereal rings that can hardly be seen ...

This, actually, is weird. Of the eight planets in the Solar System, half have rings of dust and ice orbiting their equator. Mars is thought to have once had a ring. Some of the dwarf planets have ...

In the first end-to-end demonstration of key hardware for the Arachne flight experiment, a team used components for the “sandwich tile” to convert solar energy to RF. Arachne is a flight ...

(NASA/JPL/Space Science Institute) Saturn, by contrast, is practically defined by its extensive rings. It seems likely that, outside the Solar System, rings could be common, given the large number ...