PhoSim simulates the atmosphere, including air turbulence, as well as distortions from the shape of the telescope’s mirrors and the electrical properties of the sensors. The photons are propagated ...

The majority of other information websites display prices from a single source, most of the time from one retail broker-dealer. At FXStreet, traders get interbank rates coming from a systematic ...

Ahsan Mohammed/Anadolu via Getty Images hide caption. toggle caption. Ahsan Mohammed/Anadolu via Getty Images The Picture Show. Photos: See the dazzling pictures of June's ...