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How Trees Defy Gravity
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This short video explains how trees defy gravity and carry water all the way up to their highest branches.
As you know gravity causes objects to move down- like water flowing downstream or rocks tumbling down a hillside. Yet somehow, trees can miraculously move nutrients and fluid hundreds of feet in the opposite direction, all the way up to their highest branches.
Trees defy gravity in this way by utilizing the sun's heat. When they open their stomata, small pores on the leaf used for breathing, sunlight is allowed to enter. This makes the leaf give up some of its water in the form of evaporation. As the water leaves the tree leaf, it tugs on the molecules nearby, whick tug on their nearby molecules, and so on, all the way down the tree into the roots, which then extract water from the soil.
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As you know gravity causes objects to move down- like water flowing downstream or rocks tumbling down a hillside. Yet somehow, trees can miraculously move nutrients and fluid hundreds of feet in the opposite direction, all the way up to their highest branches.
Trees defy gravity in this way by utilizing the sun's heat. When they open their stomata, small pores on the leaf used for breathing, sunlight is allowed to enter. This makes the leaf give up some of its water in the form of evaporation. As the water leaves the tree leaf, it tugs on the molecules nearby, whick tug on their nearby molecules, and so on, all the way down the tree into the roots, which then extract water from the soil.
Don't forget to like, comment, and SUBSCRIBE!
Thanks for watching!
cute cats cute dogs panda puppy kitten viral (trying to get more tags)
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