great videos..great channel

good luck

Amazing how I never realize you were on YouTube. Thanks for your awesome work, sir.

Incredible! I love these videos.

hi , awsome channel btw , science are very important , making such channal is a good work , greetings .

Hi there,
love your channel, and will feature some vids of yours, on my channel.
Greetings from Munich,
Lisa

the best cience channel on youtube! keep it up! and ty for helping me up to find M42 and a galaxy :D

I wish my teacher in highschool was like you!! I would do something else in my life. (something with physics, I think. Thanks

i made a lemon battery for a project hahahah i checked out yur vid and got an A+

Ty for all vidoes. i watched them. all Keep it up. Sciene Guy

I LOve this Stuff , Always have................................................... "We Are opposed ,Around The World, by A monolithic, and Ruthless Conspiracy, That Relies ,primarily on Covet Means, For Expanding it's sphere of Influence. It Relies on Infiltration Instead of Invasion, On Subversion Instead of elections, on intimidation instead of free choice, Its Preparations Are concealed not Published ,Its Failures are Buried not headlined, Its descendants are silenced not praised, That Is why Im Am Asking for your help ,In freeing The World From The Clutches Of Evil Men, And Allowing Man ,to be ,What He was Meant to be ,Free And Independent".................John Kennedy........................btw