Electronics For You

Create a Wireless Water Level Monitoring and Pump Control System

Pump Wiring: Connect the 220V AC pump to the relay’s Normally Open (NO) and Common (COM) terminals. Make sure the live (L) ...
Space.com on MSN

Evidence of ancient life on Mars could be hidden away in colossal water-carved caves

Skylights, openings in the surface of Mars that descend down into caves, have been found on Mars, along with signatures for ...
Factinate on MSN

It Seems Absurd, But You Could Line Up Every Planet In The Solar System Between Earth And The Moon

Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...
Morning Overview on MSN

Part of the sun looks broken and scientists are baffled

For a few days, it sounded like a scene from a disaster movie: a “piece” of the sun appeared to shear away from its surface and whirl around the north pole, leaving even seasoned solar physicists ...