IF electrons move through a gas in an electric field, their number can increase if they ionize gas molecules by collision—the well-known Townsend avalanche. Recently, it has been shown 1 that in ...

Scientists paired up photovoltaic polymers that produce two units of electricity per unit of light instead of the usual one on a single molecular polymer chain. Having the two charges on the same ...

Neurons are constantly performing complex calculations to process sensory information and infer the state of the environment. For example, to localize a sound or to recognize the direction of visual ...

Computer scientists have discovered a new way to multiply large matrices faster by eliminating a previously unknown inefficiency, leading to the largest improvement in matrix multiplication efficiency ...

Researchers have discovered a new mechanism to allow embryonic stem cells to divide indefinitely and remain undifferentiated. The study also reveals how embryonic stem cell multiplication is regulated ...