Like this? See all our tree videos at • Guide to Trees & Plants
This video features Markus Eichhorn talking about why and how tree leaves change colour (color) in the Autumn (or Fall).
Test Tube by video journalist Brady Haran for the University of Nottingham.
More at http://www.test-tube.org.uk/
A run-down of Brady's channels:
http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html
57 Comments