from space? water surface is flat isnt it?
2007-07-21 07:24:22 · 6 answers · asked by heartofglass 2 in Science & Mathematics ➔ Earth Sciences & Geology
so gravity could make water
surface curved?
2007-07-21 07:38:14 · update #1
Because of gravity. Simply put heartofglass
2007-07-21 07:31:23 · answer #1 · answered by Benjamin F 2 · 0⤊ 0⤋
You do understand the earth is roughly spherical right? If you covered a ball with a layer of water, the water on the ball wouldn't be flat, it would be round.
Water in a dish will have a flat surface due to the force of gravity, but that is because the local curvature of the Earth on the scale of the size of the dish is nonexistent. If you had a dish that was several hundred kilometers wide that followed the curve of the Earth's surface, the water surface in the dish would be curved.
Interestingly, if you take gravity out of the picture, liquid water will always adopt a spherical shape. This is because of surface tension, which is the energy it takes to form new surface from water in the bulk phase. Because forming surface takes energy, water wants to minimize the surface area it has for a given volume. The shape that minimizes surface area to volume ratio is a sphere. This is why droplets in zero-g are spherical (in the absence of strong shear flows, anyway).
2007-07-21 07:44:01 · answer #2 · answered by gcnp58 7 · 1⤊ 0⤋
you can't make out textures that small from spaceto tell they are waves. You could see a tidal wave, but thats about it. If you are wondering what keeps the water in line with the land, as far as it's shperical shape, it would be gravity. By the way, sidenote, the moon creates waves with it's gravitational pull.
2007-07-21 07:34:11 · answer #3 · answered by Anonymous · 0⤊ 0⤋
ok, to respond to your first question finding on regularly occurring velocity approximately 260days +- 10days. next, touchdown is tough maximum suitable now our suitable way of touchdown is with and airbag touchdown although we've had some vertical landings. so a procedures as ecosystem vs the martian ecosystem, the Martian ecosystem is ver diverse. For on it isn't very dense 2d it has lots extra carbon dioxide that our ecosystem,additionally mars is a lot lots chillier (even on the equator) earth. as a consequence, an astronaut does not have the skill to stroll on the Martian floor with no retaining tournament.
2016-12-10 18:26:02 · answer #4 · answered by ciprian 4 · 0⤊ 0⤋
If the earth were all water it would be one big free falling drop.
It would be round right?
2007-07-23 17:31:00 · answer #5 · answered by Irv S 7 · 0⤊ 0⤋
no, the horizon is round..... you are just too small to see it...
2007-07-21 07:28:19 · answer #6 · answered by gkltdd 4 · 0⤊ 0⤋