I have had used this water bottle almost every day since it was given to me by Emily Renscok in 2012 and a few weeks ago I misplaced it. Luckily we were reunited after I deduced it's likely location; the Lost and Found at a movie theater. Thanks again Emily for a thoughtful gift. I may have dropped it a few times, and our dog may have partially chewed the top of it, but it still keeps me hydrated everyday.
Yep, I make physics videos in the hope that you can learn physics. If you are a physics teacher, I am very hopeful that you will want to use them to help flip your physics class.