I Built a Radio Telescope in My Backyard! @BobtheScienceGuy

Uploaded June 2025 | Updated September 2026, 3 weeks ago

In this video, I take a closer look at I Built a Radio Telescope in My Backyard! using astronomical observations, measurements, and testable predictions. It's Time for Science! When I am not making Flat Earthers Cry I actually like to do some science... So I built a radio telescope in my back yard (the first of 2 I might add). Come learn about Radio Jove and the sounds of the Universe... youtube.com/@UCnTW4kCAmTt2qtXJ13kGxYA Bob the Science Guy | Science You Can Test

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$Be Verwy Quiet | Hunting Satewites with Bob Tonight we are doing two things- hunting geostationary satellites with the Orion 110 EON and taking long (up to 5 min) exposures to try and capture some nebulae and other deep sky objects. We might get ambitious and try to hit some moving satellites in real time. Ive not been able to do this yet but well see if the Astronomy Gods are with us. Ive invited several flat earthers to join us on discord to try and explain what we are looking at. Info on the equipment: Optical Tube- Orion EON 110mm Refractor Mount- Explore Scientific EXOS-2 PMC GEM Finder and Guide- Optical Finder Scopes, Optical Guide Scope Cameras- Canon Rebel SL1 DSLR (main) and ZWO 120 on the guide scope Special Thanks to Judy, Ron and Rob for their exceptional support of the channel. Bob the Science Guy is a YouTube Creator hosting a daily live stream and creating original content debunking conspiracies such as Flat Earth, Moon Landing Denial and Anti-Vaxx. https://discord.gg/QwcFct7DWc Bob the Science Guy on YouTube: https://discord.gg/CA2r9U378X Bob the Science Guy on Twitch: https://www.twitch.tv/bobthescienceguy Common Sense Science on YouTube (astronomy and Science): https://www.twitch.tv/bobthescienceguy Support the Channel and help with the costs of the telescope and video Equipment: https://www.patreon.com/bobthescienceguy Thank you for stopping by! Bob the Science Guy$

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$How an Earth-Curvature Calculator Works This video derives the geometry behind an Earth-curvature calculator instead of treating it as a black box. Using the Pythagorean theorem, observer height, target distance, Earth’s radius, hidden height, and an effective-radius correction for atmospheric refraction, the calculations reproduce the calculator’s predicted horizon and visibility values.$

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