 5Cats
Male, 40-49, Canada
 16972 Posts
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Friday, November 02, 2012 3:00:51 AM
@Kaagan: Part one of your post: True, trees get food from their roots too, and can drown if there's too much water, but I think that was covered in the video...
And I don't think any of the water is "wasted" eh? It served it's purpose: Moving nutrients up and down the tree!
Part two: Close! It was farming practices, (including over-farming) combined with abnormal weather patterns, that caused the dustbowl.
It took a law passed in Washington to force western farmers to STOP DOING THOSE DUMB THINGS! One of the rare occasions where The Gov't actually DID know better! |
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 avail9988
Male, 18-29, Australia
621 Posts
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Thursday, November 01, 2012 4:19:09 PM
Yeah that just made my head hurt... |
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 Kaagan
Male, 18-29, Eastern US
1320 Posts
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Thursday, November 01, 2012 4:02:00 PM
that’s not all that correct. trees and plants draw nutrients from the soil. just like we need zinc, iron, calcium, etc to build tissues, muscle, bone. Trees need minerals for growth as well. so if what they say is true, that the tree only uses 5-6% of the water and the rest is wasted. well the more water the tree/plant takes in, the more minerals in the soil it will collect (trees can drown however if the ratio of water the minerals is too high). This is also why if you farm, harvest, and farm again without fertilizing the ground, you will over farm the soil. Over farming means, the soil is drained of required minerals for plant growth. A great example of over farming is the dust bowl of 1934. A once excellent, flat, beautiful plane became a hellhole from over farming. The dried up soil does not stick together and weighed less than traditional soil. Because of this, the soil was easily picked up by winds and created dust storms often. |
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 malikymoo
Female, 18-29, Europe
1945 Posts
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Thursday, November 01, 2012 3:55:42 PM
no way. a periodic table tie. LOVE. IT. |
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 2929AZDR
Female, 30-39, Western US
70 Posts
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Thursday, November 01, 2012 3:07:45 PM
what a hot man! I turned off the sound and just watched him.. mmm |
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5Cats
Male, 40-49, Canada
16972 Posts
|
Thursday, November 01, 2012 8:48:45 AM
@CrakrJak: True that! I've made the case that without trees humans would never have achieved civilization - they're SO USEFUL! Building material, fuel; there's just no replacement for them.
@Canoas: True, but tree heights vary according to their location. No 100 metre trees on the prairies! Tree species fit their environment amazingly well. |
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 Cajun247
Male, 18-29, Southern US
9438 Posts
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Thursday, November 01, 2012 8:44:39 AM
The most beautiful thing about a tree is what you can do with it after it's cut down.
Seriously? You HAD to bring that up? |
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Cajun247
Male, 18-29, Southern US
9438 Posts
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Thursday, November 01, 2012 8:43:36 AM
Hmm, interesting. Liquids are incompressible after all. |
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 AvatarJohn
Male, 30-39, Southern US
488 Posts
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Thursday, November 01, 2012 7:56:52 AM
"Metres"? That spelling clearly indicates that this guy is a terrorist. Other than that, fun video! |
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 McGovern1981
Male, 30-39, Eastern US
10249 Posts
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Thursday, November 01, 2012 7:18:13 AM
Vi Hart looks like she needs a cheesburger!! |
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 8BitHero
Male, 18-29, Europe
5420 Posts
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Thursday, November 01, 2012 6:38:11 AM
Awesome stuff.
The professor from PeriodicVideos! |
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 Canoas
Male, 18-29, Europe
422 Posts
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Thursday, November 01, 2012 4:55:09 AM
It does seem inefficient and "stupid" to have tall trees, but that's all due to the evolution process. In a forest only the taller trees get sunlight so a small and efficient tree would just die. |
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 Zeegrr60
Male, 40-49, Eastern US
1514 Posts
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Thursday, November 01, 2012 4:00:01 AM
A+.you get a cookie. |
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 drawman61
Male, 50-59, Europe
1401 Posts
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Thursday, November 01, 2012 2:41:02 AM
Nature haz a clever. So the easy thing would have been to just have 10m tall trees but nature shows why she is the boss once again. |
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 CrakrJak
Male, 40-49, Midwest US
14374 Posts
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Thursday, November 01, 2012 1:21:26 AM
Still, The most beautiful thing about a tree is what you can do with it after it's cut down.
Case in point.
 |
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 ferdyfred
Male, 40-49, Europe
5554 Posts
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Thursday, November 01, 2012 1:10:39 AM
@uatme
excellent post - never even thought about how trees drag water up so high, more of this please!! |
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 niceguy191
Male, 18-29, Canada
171 Posts
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Wednesday, October 31, 2012 10:33:52 PM
You get to see Vihart at the end too :) |
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 thesandwich
Male, 18-29, Midwest US
150 Posts
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Wednesday, October 31, 2012 9:58:12 PM
So first you tell me it isn't transpiration. Then you go into the physics of transpiration as your argument. Good try, but it is transpiration while noting it is not due to solutes or the capillary affect.
And we already knew that most of the water used by trees (and other plants) isn't for any metabolism or growth but for continuing the flow of water. |
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5Cats
Male, 40-49, Canada
16972 Posts
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Wednesday, October 31, 2012 9:46:33 PM
First minute: I did not know that! Must have skipped school that day...
Woah! Super cool! Now I know how it works!
AND trees take carbon into their leaves, shoot it down their roots and give it to underground fungi, who then take the carbon and transort it to OTHER TREES (of the same kind) who are too shaded to photosynthesise!! Saw it on TV last week - blew my mind too!
@klaxor: It does seem inefficient, but consider oceanic filter-feeders: they sift through TONS of water or sand to find tiny bits of food. It doesn't need to be efficient, it just needs to work!
7:00 VI HART!!! That's Vi Hart on the left, in her trademark arm-warmers! VIIII! Marry meeeee!
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 Fancysucksss
Male, 18-29, Western US
1051 Posts
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Wednesday, October 31, 2012 9:14:04 PM
Wow. I didn't think the trees innards were so advanced |
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carmium
Female, 50-59, Canada
4055 Posts
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Wednesday, October 31, 2012 8:42:47 PM
Gee! Cute AND smart.... and half my age. |
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brownboyfrog
Male, 18-29, Canada
4 Posts
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Wednesday, October 31, 2012 8:07:04 PM
well. now I have all of these questions about some of the other parts of trees and now I'm going to spend all night looking up the answers rather then sleeping or homework. Just great. |
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klaxor
Male, 18-29, Western US
647 Posts
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Wednesday, October 31, 2012 8:05:19 PM
that seems horribly inefficient |
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 sutra46
Female, 40-49, Asia
2008 Posts
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Wednesday, October 31, 2012 7:55:22 PM
It learned me! |
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 DromEd
Male, 40-49, Eastern US
913 Posts
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Wednesday, October 31, 2012 7:30:23 PM
Age of the geek baby. |
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