“How Fast Is It” now available on YouTube

Just published “How Fast Is It”, my most recent science video book on YouTube. You can see it here. My “How Far Away Is It” channel now has 1,590,000 hits and 12,614,000 minutes watched. Not bad for science videos.

With this third video, I have reorganized the How Far Away Is It website as video aids for science teachers from middle school to college.