Channel Update: Expanding Into Astronomy, Home Science and Spaceflight @BobtheScienceGuy

Uploaded May 2021 | Updated September 2026, 3 weeks ago

A channel announcement outlines plans to expand beyond Flat-Earth rebuttals into backyard astronomy, telescope livestreams, reproducible home-science experiments, public-health topics, spaceflight history, ISS and Mars imagery, and broader science-denial coverage. The transcript is primarily a roadmap for future content rather than a single science lesson.

Channel Update: Expanding Into Astronomy, Home Science and Spaceflight

From the Renaissance to Neptune: How Modern Scientific Astronomy Took Shape

Selecting a Slide Rule 2- The Engineering Rules

Introducing a Series on Vaccine Misinformation and Science Denial

How the Space Program Protects Earth From Asteroids

Why Science Denial Persists: Intuition, Identity and Evidence

Greek Astronomy | Putting it all Together

$Four Independent Ways to Measure Earth’s Radius Earth’s radius can be checked with independent methods that rely on different observations. This video compares Eratosthenes shadow geometry, Al-Biruni’s horizon-dip method, hidden-height measurements with refraction corrections, and great-circle distances calculated with the Haversine formula, showing that the results converge on the same physical scale.$