Foil-lined foam insulation board, scraps of lumber, and a paint-thinner can ... antenna is then piped into an inexpensive low-noise amplifier (LNA) specifically designed for the hydrogen line ...

The answer is: a radio telescope that can track hydrogen in the Milky Way ... which contains scripts for hydrogen line observation, calibration and data processing. After calibration, the findings ...

PICTOR consists of a 1.5-meter parabolic antenna that allows anyone to make continuous and spectral (i.e. hydrogen line) drift-scan observations of the radio sky in the 1300~1700 MHz regime for free.

A 19.8 kW PV system is powering a telecommunications antenna at a French air control center. When it produces more energy than needed, the surplus is used to produce hydrogen which is then ...