By how much do you think?
2006-08-13 00:29:28 · 20 answers · asked by Jay 3 in Environment
World tonnage of shipping in 2000 was about 895,800,000 tonnes.
There is 1000 Kg in a tonne
Seatwater density is 1030 Kg/M3
Displacement of all the shipping is therefore:
895,800,000 * 1000 / 1030 = 869,708,737 cubic meters
543,689 / 1,000,000,000 = 0.869708 Cubic kilometers
World sea area = 361,132,400 Square kilometers
Therefore the volume of water displaced by the worlds shipping if spread accross the area of sea in the world represents:
0.869708 km^3 / 361,132,400 km^2 = 2.40828 *10e-9 km
Multiply by 1000 and 100 and 10 to get millimeters =
0.00240828 millimeters
So not much really, and this doesnt include non merchant shipping such as military boats and pleasure craft.
2006-08-13 01:16:35 · answer #1 · answered by Anonymous · 1⤊ 0⤋
You can demonstrate for your own satisfaction that removing all the ships out of water (to dry land) would lower the sea level. Float a large block of wood in a sink and mark the water level. Remove the block and mark the new water level. The water level will drop by the same volume of water the block displaced and the actual drop will depend on the water surface area of the sink. You could determine the effect of removing all the ships from the oceans by estimating the total tonnage, converting that to tonnage of water and to cubic feet and dividing that by the surface of the earth's oceans and seas (use the fraction of the earth's surface covered with water for a sphere with the earth's diameter). Since the drop in level will likely be very small use a calculator to work in square and cubic feet; then convert the answer to inches (or work in meters and centimeters?). Good luck.
2006-08-13 01:06:37 · answer #2 · answered by Kes 7 · 0⤊ 1⤋
Of course not. If you want water level to fall, you need to remove only one boat. By removing more than one boat, even at the same time, a theorem known as the Gutenberg Export Principle comes into account, which means that even though the boats are in different space-time continuums, they share a common belief-system, and therefore takes up less space than a single boat.
2006-08-13 01:08:48 · answer #3 · answered by Anonymous · 1⤊ 1⤋
taking all the ships out of the water will not affect sea level. global warming or a change in the environment will.
2006-08-13 00:36:47 · answer #4 · answered by mims 1 · 0⤊ 2⤋
no longer particular what's your question.. yet i'm searching ahead to this twelve months's NDP celebrations! a minimum of a few thing diverse then the exterior stadium and the padang! of route you may't beat the ambience it is continually there contained in the stadium... *whee* have you ever submitted your names in for the tickets yet?
2016-11-30 00:43:50 · answer #5 · answered by littell 3 · 0⤊ 0⤋
No, I don,t think so because the sea level of all seas are always 0.
2006-08-13 00:35:49 · answer #6 · answered by Anonymous · 0⤊ 2⤋
Conjecture.
2006-08-13 00:36:14 · answer #7 · answered by Harriet 5 · 0⤊ 1⤋
No, the ship level would just rise.
2006-08-13 00:34:32 · answer #8 · answered by Anonymous · 0⤊ 2⤋
No - neglegible may be 1/1,000,000 of a milimeter :)
2006-08-13 05:29:05 · answer #9 · answered by R G 5 · 0⤊ 0⤋
Yes, but it would be an immeasurably small amount
2006-08-13 00:35:42 · answer #10 · answered by Steve 4 · 2⤊ 0⤋