iceberg
- Thread starter greenery_spliff
- Start date
Gotta be fake - how is the iceberg lit from below?
First, the picture is
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. It is a composite photograph compiled for a motivational poster.
Second, ice will float with 8.7% of the ice above water. Calculation is like this:
density of water (at 4 degrees celcius -- the densest temp. for H20): 1.0 g/mL
density of ice (at 0 degrees celcius): 0.92 g/mL
1.0 / 0.92 = 1.0869... or 108.7%
in other words, the same mass of liquid water occupies 108.7% of its original volume when frozen.
Since we are being geeks here, think about this: Water/ice is the only substance that expands when it freezes. All other substances occupy less space when it is a solid then when it is a liquid and are therefore more dense when a solid. If this were the case with water, lakes would freeze solid in the winter since as the surface freezes it would sink and allow more ice to form and sink... and so on. This unusual property of water allows life to survive in lakes that have frozen over since the layer of ice protects the deeper water from freezing.
Second, ice will float with 8.7% of the ice above water. Calculation is like this:
density of water (at 4 degrees celcius -- the densest temp. for H20): 1.0 g/mL
density of ice (at 0 degrees celcius): 0.92 g/mL
1.0 / 0.92 = 1.0869... or 108.7%
in other words, the same mass of liquid water occupies 108.7% of its original volume when frozen.
Since we are being geeks here, think about this: Water/ice is the only substance that expands when it freezes. All other substances occupy less space when it is a solid then when it is a liquid and are therefore more dense when a solid. If this were the case with water, lakes would freeze solid in the winter since as the surface freezes it would sink and allow more ice to form and sink... and so on. This unusual property of water allows life to survive in lakes that have frozen over since the layer of ice protects the deeper water from freezing.
amstrad, you are my hero
some people really do take things WAY too serious
The water clarity would have to be incredible to get a picture like that.
Also, you can see a little stripe of the sea surface going across the picture under the iceberg, which would mean the camera is out of the water. If it was, you wouldn't be able to get a picture of anything under the surface.
Fake.
Also, you can see a little stripe of the sea surface going across the picture under the iceberg, which would mean the camera is out of the water. If it was, you wouldn't be able to get a picture of anything under the surface.
Fake.
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