
The SciencesJune 1, 1976
Future Performance in Footracing
Running records are still far below human physiological limits. The restraints on performance are psychological: good runners do not work as hard once they have set a record or won a medal

Future Performance in Footracing
Running records are still far below human physiological limits. The restraints on performance are psychological: good runners do not work as hard once they have set a record or won a medal

Tracking Satellites by Radio
The fastest, most reliable way to detect an artificial satellite and initially to determine its orbit is by radio. A far-flung system called Minitrack has been established for this purpose