03:52 Here’s Why Helicopter Blades Can Look Strange On Video Science · September 8, 2016 509 675 28 129
02:02 Why Don’t Evergreen Trees Lose Their Needles? – BrainStuff 11/20/2019 Science · December 19, 2019 1 775 130
03:34 How Did the Ancient Land Blob Called Gondwana Become Today’s Southern Continents? Science · December 20, 2019 1 150 144
03:00 Can Your Brain Get Tired Like Your Muscles Do? – BrainStuff 11/22/2019 Science · December 23, 2019 1 900 159