Gray (Gy)

The Gray (Gy) is a unit of radiation dose that is frequently used in the field of medical physics. It is defined as the absorption of one joule of energy per kilogram of matter. The unit is named after British physicist Louis Harold Gray (1905-1965), who is credited with developing the concept of effective dose. … Read more

Beacon (proximity beacon)

A beacon is a proximity beacon which uses Bluetooth Low Energy (BLE) technology to transmit a signal to nearby devices. The signal contains a unique identifier which can be used to identify the beacon and its location. Beacons can be used for a variety of purposes, such as providing information about a nearby location, or … Read more