Video of Sicily’s Mount Etna erupting with lava flows and steam sprays

April 13, 2012 – Europe’s highest active volcano, Italy’s Mount Etna, erupted again this week. The eruption, which spewed blood-red molten lava and grey and white ash into the air, is the 24th in a series that started in January 2011.   A decade ago the volcano was at it again, this time more serious. …

Molten salt and the Power Tower, the new solar power

I like to think of thermal solar power as the rock star of clean energy. The technology starts off with the coolest name, the Power Tower. The Tower is surrounded by thousands of adoring mirrors all focusing their attention on it in the center.¬†As the mirrors build up the heat in comes the molten salt …