Stellar rotation can have a very rapid rate of rotation; on the order of a hundred rotations per second. Pulsars are rotating neutron stars that have a magnetic field. A narrow beam of electromagnetic radiation is emitted from the poles of rotating pulsars. If the beam sweeps past the direction of the Solar System then the pulsar will produce a periodic pulse that can be detected from the Earth. The energy radiated by the magnetic field gradually slows down the rotation rate, so that older pulsars can require as long as several seconds between each pulse. A black hole is an object
A Beam of Sun to Shake the Sky A Beam of Sun to Shake the Sky A Beam of Sun to Shake the Sky is a public art work by American artist Richard Taylor, located in downtown Milwaukee, Wisconsin. The sculpture was created for the Central Milwaukee Public Library as part of the remodeling of the Wells Street entrance. "A Beam of Sun to Shake the Sky" consists of two vertically oriented sculptures set upon massive granite pedestals in front of the library's glass facade. The sculptures appear made of bright red ribbon-like strips of painted aluminum that snake skyward. The individual strips each contain cut-out letters in