Here is the latest iteration - a new way to make super capacitors out of graphene layers.

Many were involved in making capacitors that used thin film technology.

It is also used to make superior electrolytic capacitors.

At the time, nobody was making capacitors or resistors out of semiconductors.

At the Oxide factory, which makes capacitors, 70 percent of production was military, mostly for anti-tank weapons.

Vishay, which is based in Malvern, Pa., also makes capacitors.

"It looks like we can fit a few more laser modules in there if we make smaller capacitors."

They were used in industrial chemistry, and to make certain transformers, capacitors, and cooling fluids.

Scientists and chemical engineers are working to make better capacitors and batteries for electric cars.

For example, tantalum from Congo is used to make electrical capacitors that go into phones, computers and gaming devices.