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Why the log does not sink in water?

Yes, log, whatever it great, doesn't sink in water. The secret of this phenomenon is that the density of the wood has a lower density than water.

By the way...

Density is the ratio of the mass of a physical body to its volume. The density of water is equal to (1 g/cm3), and the density of most tree species is less than 1.

By the way...

There are trees that sink in water! The reason for this, as you can already guess, that their density is greater than the density of water. These trees are called "iron". To "iron tree" include, for example, parrotia Persian, azobe (African tropical ironwood), the Amazonian tree, ebony, rosewood, or rosewood, Kumar and others. All these trees are very hard and dense wood, saturated oils, bark of these trees resistant to decay. So the boat from this tree will immediately sink to the bottom, but the "ironwood" is an excellent material for making furniture.

 


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Total votes: 246

Your comments:

Victoria
2014-04-13 22:43:53
class
,,,,Valeria...
2014-03-27 19:35:21
I knew!)
Alex
2014-03-25 16:57:02
People, are you? What does "didn't know that trees do not sink in water." And letsplay? One of rasprostranen ways transportirovki logs. Just thrown into the river and they over deliver to the right place
some
2014-03-03 15:14:03
class
Nastya
2014-03-03 14:30:46
I did not know that trees do not sink in water.
Pavlovets Victoria
2013-09-30 20:12:29
super
Alexander
2013-08-03 12:26:11
normally
Anonymous
2013-08-03 12:25:37
normally
Nadia
2013-06-08 21:14:36
well I do not know
Nastya
2013-04-10 10:17:17
I never thought that the log does not sink in water. super!!

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