The lens of a camera gathers light and focuses it on the imager, which converts the light into an electrical signal. Camcorder lenses can be adjusted in a variety of ways, including aperture, zoom, shutter speed, and gain.
Spin-polarizing scanning tunneling microscopy allowed researchers to detect an elusive atomic-scale magnetic signal in a Mott insulator, reports a team of scientists.
Science Daily. Tue, 22 Oct 2019 08:07:24 EDT.
A growing number of market analysts reportedly are warning that the repo market shock in September may have been the first signal of a wide-ranging liquidity shortage, and now those warnings are being echoed by the heads of major banks.
Newsmax. Mon, 21 Oct 2019 12:41:55 EDT.