Anonymous ID: 1bcb8e Jan. 31, 2020, 4:10 p.m. No.7983857   🗄️.is 🔗kun   >>3911 >>3951

>>7983710

 

Jan. 31, 1958:

First U.S. Satellite Discovers Van Halen Belt

 

The United States enters the space age with the successful launch of the Explorer I satellite. Data from the satellite confirms the existence of a radiation belt girdling the Earth.

 

Explorer I, known officially as Satellite 1958 Alpha, blasted into orbit from Cape Canaveral atop a Jupiter-C rocket, a modified version of Wernher von Braun’s Redstone ballistic missile, which itself was a direct descendant of another von Braun production, the German A-4/V-2 rocket.

 

The project was carried out at Caltech and the Jet Propulsion Laboratory for the U.S. Army (before NASA was founded). It was already on the drawing board but was accelerated dramatically following the successful launch of Sputnik I by the Soviet Union the previous October. In all, it took 84 days to modify the rocket and to design and build the satellite.

 

Explorer I was tiny, weighing 30 pounds fully loaded. More than half the weight was instrumentation, which included a cosmic-ray-detection package, a variety of temperature sensors and a microphone for picking up micrometeorite impact. Data was sent back to Earth using 10- and 60-milliwatt transmitters.

 

It was a model of simplicity, and it worked. In NASA’s own words: “Because of the limited space available and the requirements for low weight, the Explorer I instrumentation was designed and built with simplicity and high reliability in mind. It was completely successful.”

 

https://www.wired.com/2011/01/0131explorer1-discovers-van-allen-belt/