Rotating magnetic field as a sum of magnetic vectors from 3 phase coils.

An electric motor converts electrical energy into kinetic energy. The reverse task, that of converting kinetic energy into electrical energy, is accomplished by a generator or dynamo. In many cases the two devices differ only in their application and minor construction (more…)

The stock market can present you with a lot of hot stocks every
day. Many of them are new technology stocks that come from the
nanotech, biotech, voip, healthcare, homeland defense or
internet sectors.

Most of them may seem promising, but the truth is that a good
number of these trading & investing opportunities are extremely
risky, while others are not as good as they seem. That’s why
it’s very important to know how to choose the best es (more…)

Carbon Nanotubes (CNTs) and graphene exhibit extraordinary electrical properties for organic materials, and have a huge potential in electrical and electronic applications such as sensors, semiconductor devices, displays, conductors and energy conversion devices (e.g., fuel cells, harvesters and batteries). This report brings all of this together, covering the latest work from 78 organizations around the World to details of the latest progress ap (more…)