Technische Universitaet Muenchen. "Electron billiards in nanoscale circuits." ScienceDaily. ScienceDaily, 24 October 2010. <www.sciencedaily.com / releases / 2010 / 10 / 101021190615.htm>.

A diagram showing how electrons flow in a standard metal (gold) on the left, and how they create electron whirlpools in a quantum material (tungsten ditelluride), right ...

In circuit diagrams the positive side of a cell or battery is represented by the longer line and the negative side is represented by the shorter side. This is referred to as the polarity of the cell.

The team worked from high-resolution data acquired by electron microscopy. Electron microscopy is still the only tool available for a complete understanding of connectivity at synapse resolution ...