This system, containing blue-green algae, powered a microprocessor continuously for a year using nothing but ambient lig
could
First Direct Visual Evidence That the Object in the Center of the Milky Way Is Indeed a Black Hole
8 min read
Astronomers reveal the first image of the at the heart of our galaxy. It is the...
Electrical resistivity tomography (ERT) gauges underground changes by measuring electrical conductivity in the rock. ERT
