Of current interest: Air-launched automatic weather station transmits data by Radio

A self-contained automatic weather station, which transmits weather data by radio on a frequency of five megacycles at 3-hour intervals for about 15 days, has been developed by the National Bureau of Standards (NBS) for the Navy Bureau of Ships. Named the Grasshopper, the device can be parachuted from aircraft onto inaccessible territory. Developed during World War II, it automatically will set itself up and periodically make and transmit weather observations over a range of 100 miles. It also may be used as a radio marker beacon.