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/sci/ - Science & Math

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1932211 No.1932211 [Reply] [Original]

I'm genuinely interested in why this bit of troll science won't work.

>> No.1932218

Air moves with the earth, to some extent.

>> No.1932219

>>1932211
>implying it doesn't

>> No.1932216

Air rotates with the earth

>> No.1932225

>>1932218
>to some extent
right, only to a certain extent, which is why OP's picture will work if done at a great enough altitude

>> No.1932227
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1932227

And why doesn't this work?

>> No.1932232

The rotational speed of the Earth's surface varies from 0 to 1,038 miles/hour depending on your latitude. Do you see constant 1,038 mile/hour winds at the equator?

>> No.1932235

The troll gate has been opened. Release the trolls!

>> No.1932236

>>1932225
No, not only to some extent. But there's this thing called wind. There are major streams going west at some latitudes and east at other latitudes.

>> No.1932239

>>1932227
Water won't rise through the pipe any higher than level with the water outside of the boat.

>> No.1932244

>>1932225
Not really, because you're still going to be orbiting the planet (conservation of angular momentum a herp derp). You'd have to exert a force to begin moving in another direction relative to the surface of the earth.

>> No.1932255

>>1932225
Just so you know the guy who responded to you first wasnt this anon, who wrote the comment you replied to. Anywho, you are of course correct, at extremely high altitudes you would not move nearly as much w/ the earth's rotation.

>>1932236
You are correct but that doesn't have bearing on the extreme altitudes he was talking about

>> No.1932252

>>1932236
wind gets less and less of a factor at high altitudes
you might need just a small push and you're gonna circle the earth
tl;dr: wind or no wind, OP's picture is valid.

>> No.1932250

wind of 465 m/s in the equator.

>> No.1932286

>>1932211

yes, and thusly the view at either pole would be incredibly dull...

>> No.1932287

The speed of the earth is roughly 1,038 miles per hour at the equator (or, approx 1,038 * cosine(latitude)) anywhere else.
When you move upwards from the earth's surface, (jumping, rocket, balloon, whatever), you aren't really moving UP all that much in relation to your preserved angular speed. You're going to keep going horizontal relative to the earth's surface unless you can achieve escape velocity or exert a force counteracting your existing horizontal motion i.e. flying in a propelled craft in a direction opposite the earth's rotation.

>> No.1932294

The same reason that a mosquito inside of your car doesnt hit the back windshield when you are on a highway

>> No.1932298

If you went up above the true north pole in a balloon though, you would get to see the earth spinning beneath you at a rate of approximately 0.00069 RPM.

>> No.1932300

>>1932255
>>1932225
You are both or samefag implying there is a global westerly wind at high altitudes. There is not.

>> No.1932311

>>1932227

apply bernoulli's to the problem, assuming steady flow, incompressibility, etc.

pressure/density+velocity squared/2+gravity times height=pressure/density+velocity squared/2+gravity times height

>>1932211

motion is relative, you need a reference frame

>> No.1932327

While all of you are in the trolled mood:

Why will magnetically induced rotation of a circular array of magnets not work?

>> No.1932354

>>1932300
No, as I said in my post I was not that anon. I specifically replied to him telling him why he was wrong (high altitude wind isnt a significant force).

>> No.1932357
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1932357

because they repel eachother? Not sure tbh.

>> No.1932360

because the earth is moving around the sun as well. If you stayed in one place you would be in space after a 24 hours

>> No.1932368

>>1932360
Dude. You'd be in space in less than a second.

>> No.1932380

well dear, there's no reason why your little balloon adventure couldn't fly around and maybe even have "william's insurance company of littlerock arkansas" written right on the side.

that's a good boy now.