Sometimes it seems like eBay is the world’s junk bin, and we mean that in the best possible way. The variety of parts available for a pittance boggles the mind sometimes, especially when the parts ...

The members of the Franklin Institute of Philadelphia took their seats for their annual meeting last week in an atmosphere of ill-concealed excitement. Weeks before, the committee on awards had ...

Click to open image viewer. Hot-filament ion sources for the Oak Ridge Isochronous Cyclotron, l. to r. by object ID no.; 1977.0359.10 graphite cyl., 11 graphite cyl., 14 graphite cyl., 15 copper cyl.

(Nanowerk Spotlight) Heat energy can be converted into electricity with very high efficiency through a temperature-induced electron flow process known as thermionic emission. The basic operating ...

A team of scientists has invented a new type of solar cell that converts both the sun’s heat and light into electricity, potentially giving a boost to the efficiency of solar energy harvesting devices ...