Tag: astronomy

via HACKADAY: The Biggest Corner Antenna We’ve Ever Seen

Radio waves are received on antennas, for which when the signal in question comes over a long distance a big reflector is needed. When the reception distance is literally astronomical, the reflector has to be pretty darn big. [The Thought Emporium] wants to pick up signals from distant satellites, the moon, and hopefully a pulsar. […]

via HACKADAY: Black Holes and the Elusive Mystery That Lies Within an Equation

“If I have seen further than others, it is by standing upon the shoulders of giants.” This famous quote by Isaac Newton points to an axiom that lies at the heart of The Sciences — knowledge precedes knowledge. What we know today is entirely based upon what we learned in the past. This general pattern […]

UI sophomore reaching for the stars—and getting there (Iowa)

Hannah Gulick grew up wanting to be a writer. Then, while taking a project-based class during her sophomore year of high school in Spirit Lake, Iowa, she discovered astronomy. “I was put in the gym with a star dome and told to learn the constellations and about nebulas and asteroids,” the University of Iowa sophomore […]

via HACKADAY: Listening to Jupiter on a DIY Radio

If you want to get started with radio astronomy, Jupiter is one of the easiest celestial objects to hear from Earth. [Vasily Ivanenko] wanted to listen, and decided to build a modular radio receiver for the task. So far he’s written up six of the eight planned blog posts. The system uses an LNA, a […]

via HACKADAY: The Tiny Radio Telescope

Radio telescopes are one of the more high-profile pieces of scientific apparatus. There is an excitement to stories of radio astronomers of old probing the mysteries of the Universe on winter nights in frigid cabins atop massive parabolas, even if nowadays their somewhat more fortunate successors do the same work from the comfort of their […]

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