![Thermal Trapping Device](https://cdn.mos.cms.futurecdn.net/EGJftHD6hfX38w9TUNwnbP-320-80.jpg)
Solar power generated enough heat to power a steel furnace
A new proof-of-concept device trapped solar radiation and used it to heat an object to a blistering 1,800 degrees Fahrenheit (1,000 degrees Celsius), raising hopes that steel furnaces could be powered by solar energy.