The researchers used an electron microscope and fossilized remains of thirty feathers that once covered the animal.

VOA: special.2010.03.16

When a light particle,or photon, hits an electron, the electron jumps to a higher energy state.

VOA: special.2010.09.01

In nineteen-oh-six, the electron tube was considered the single most important development in electronics.

VOA: special.2010.01.31

His most famous invention was the vacuum tube,or electron tube.

VOA: special.2010.01.31