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  • 13:15 Popular Photosynthesis: Crash Course Biology #8

    Photosynthesis: Crash Course Biology #8

    1,045 views / 3 likes - added

    Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well. Crash Course Biology is now available on DVD! http://dftba.com/pro

  • 11:54 Popular Vascular Plants = Winning! - Crash Course Biology #37

    Vascular Plants = Winning! - Crash Course Biology #37

    1,085 views / 0 likes - added

    Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can take food and water f

  • 02:49 Popular How Do Trees Survive Winter?

    How Do Trees Survive Winter?

    722 views / 0 likes - added

    This video sponsored by our Subbable supporter NIL: http://www.youtube.com/TheNilFacts And thanks to Subbable supporter Raed Massoud for helping make MinuteEarth possible! You can support MinuteEarth on Subbable too! - https://subbable.com/minuteearth Hum

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  • 04:16 How Can Trees Be Taller Than 10m?

    How Can Trees Be Taller Than 10m?

    212 views / 0 likes - added

    Answer video: https://www.youtube.com/watch?v=BickMFHAZR0The longest vertical straw you can use is 10.3 m http://www.youtube.com/watch?v=HUmZrtiXDikThis is because the weight of water in the straw must be supported by the pressure difference at its two en

  • 07:23 How Trees Bend the Laws of Physics

    How Trees Bend the Laws of Physics

    253 views / 0 likes - added

    Hope this was worth the wait! So many people helped with this video: Prof John Sperry, Hank Green, Henry Reich, CGP Grey, Prof Poliakoff, my mum filmed for me in beautiful Stanley Park and Jen S helped with the fourth version of the script.Prof John Sperr

  • 03:58 Sharpshooter Insects are Real Wizzes at Whizzing | Deep Look

    Sharpshooter Insects are Real Wizzes at Whizzing | Deep Look

    23 views / 0 likes - added

    Sharpshooters survive by guzzling a lot of plant sap. But drinking all of that liquid nutrition presents a problem for these tiny insects: How do they move it all out? Easy. They've perfected a super-propulsive urination technique using a special catapult


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