mC HULL 12,514 Posted January 19, 2023 Report Share Posted January 19, 2023 2 minutes ago, Bakerboy said: My sentiments exactly charts already slipped up he’s said no commercial airliner can fly upside down if that’s the case how do you fly at the bottom a the globe ?? Quote Link to post Share on other sites
chartpolski 23,565 Posted January 19, 2023 Report Share Posted January 19, 2023 2 minutes ago, mC HULL said: charts already slipped up he’s said no commercial airliner can fly upside down if that’s the case how do you fly at the bottom a the globe ?? The earth is spinning on its axis and spinning in its orbit, so where's the bottom of the globe ? No commercial aircraft can fly upside down, in my opinion, in respect to its position above the earth. If you believe different, that's ok, I can respect your opinion without agreeing with it, but I find it an awfull indicement on the British educational system. Cheers. 1 5 Quote Link to post Share on other sites
mC HULL 12,514 Posted January 19, 2023 Report Share Posted January 19, 2023 4 minutes ago, chartpolski said: The earth is spinning on its axis and spinning in its orbit, so where's the bottom of the globe ? No commercial aircraft can fly upside down, in my opinion, in respect to its position above the earth. If you believe different, that's ok, I can respect your opinion without agreeing with it, but I find it an awfull indicement on the British educational system. Cheers. the south pole isn’t it? 1 Quote Link to post Share on other sites
mC HULL 12,514 Posted January 19, 2023 Report Share Posted January 19, 2023 answer this mate if a plane set off from the uk south over the south pole right up to the north pole and back over to britain would that plane of been upside down Quote Link to post Share on other sites
chartpolski 23,565 Posted January 19, 2023 Report Share Posted January 19, 2023 15 minutes ago, mC HULL said: the south pole isn’t it? Here a little paradox for you; If you were at the South Pole, and started digging a hole, would you be digging downwards, or upwards ? The "top" or "bottom" of the earth is only relative to where you are standing or where you are viewing the earth from. Have you ever been to Australia ? There's shops there that sell Australian maps and globes wher Australia is at the "top" and Britain is at the " bottom". If you're on the ISS and view the earth, depending when you view it, the top and bottom would be different. In answer to your question about a plane flying around the world, of course it's never upside down, it's allways the right way up relative to earth ! Physically, mechanically, aerodynamically, commercial aircraft can't fly upside down. Cheers. 2 Quote Link to post Share on other sites
mC HULL 12,514 Posted January 19, 2023 Report Share Posted January 19, 2023 4 minutes ago, chartpolski said: Here a little paradox for you; If you were at the South Pole, and started digging a hole, would you be digging downwards, or upwards ? The "top" or "bottom" of the earth is only relative to where you are standing or where you are viewing the earth from. Have you ever been to Australia ? There's shops there that sell Australian maps and globes wher Australia is at the "top" and Britain is at the " bottom". If you're on the ISS and view the earth, depending when you view it, the top and bottom would be different. In answer to your question about a plane flying around the world, of course it's never upside down, it's allways the right way up relative to earth ! Physically, mechanically, aerodynamically, commercial aircraft can't fly upside down. Cheers. your like my science teacher mate so if you stood on the south pole at that time it’s the north pole i get you thanks for clearing that up Quote Link to post Share on other sites
shaaark 10,780 Posted January 19, 2023 Report Share Posted January 19, 2023 You lads want a real head scratcher? Try getting your heads around newton's theory of relativity!! 1 Quote Link to post Share on other sites
chartpolski 23,565 Posted January 19, 2023 Report Share Posted January 19, 2023 Cheers. Quote Link to post Share on other sites
chartpolski 23,565 Posted January 19, 2023 Report Share Posted January 19, 2023 9 minutes ago, shaaark said: You lads want a real head scratcher? Try getting your heads around newton's theory of relativity!! Many years ago, I bought Hawkins "Brief History Of Time" , and didn't understand some of it no matter how many times I read it ! So, like many others, I asked if he could have it reprinted with diagrams to help us understand it. He did, "An Illustrated Brief History Of Time", so I bought it and the only difference was he sold me TWO books I couldn't get my head around ! LOL ! Cheers. 2 Quote Link to post Share on other sites
king 11,972 Posted January 19, 2023 Report Share Posted January 19, 2023 Why isn't it quicker to fly around the world the opposite direction to its spinning? The air follows the earth. Commercial airlines can fly at about 600 miles per hour. However, this is relative to the speed of the air through which the airplanes are flying. It actually is slightly worse than that. To us it looks like the sun rises in the east and sets in the west. Of course the apparent motion of the sun is caused by the earth spinning in the opposite direction. The earth is spinning from west to east. It completes a rotation once per day, or once in 24 hours. The circumference of the earth is roughly 24,000 miles. This means that at the equator the earth is spinning from west to east at about 1,000 miles per hour. Also, the poles are relatively cold and the equator is relatively hot. This means that very slowly the air is rising around the equator and falling at the poles. This produces an exceptionally slow movement of air from the poles to the equator at ground level, and from the equator to the poles at high altitude. The air that is moving at ground level is impacted by friction as it runs into trees and mountains and “stuff” on the surface of the earth. This means that by the time that the air gets to the equator it is moving with the earth, from west to east at roughly 1,000 miles per hour. At the equator the air heats up. It very slowly rises to a high altitude. There it is still spinning from west to east at about 1,000 miles per hour. It very slowly moves back towards the poles while still spinning at the same speed. At high altitude it has nothing to run into and therefore has a tendency to keep spinning at the same speed. Eventually this air, if it happens to be moving north, gets over the northern parts of the US or the southern parts of Canada. It is still spinning from west to east, but at this point it is spinning faster than the part of the earth that is below it. When it gets close to the polls its movement contributes to the polar vortex, but that is a different issue. This means that an airplane flying from let’s say Seattle to eastern North America or Europe can get into the high altitude air that is moving from west to east faster than the earth is moving in the same direction. This means that an airplane can fly from Seattle to New York (as an example) faster when it is moving in the same direction as the earth than it can if it were to try to move in the opposite direction. The reason is the movement of air. At the 45th parallel in either the northern or southern hemisphere the high altitude air tends to move from west to east, in the same direction but slightly faster than the earth is spinning Quote Link to post Share on other sites
NEWKID 27,159 Posted January 19, 2023 Report Share Posted January 19, 2023 53 minutes ago, chartpolski said: Here a little paradox for you; If you were at the South Pole, and started digging a hole, would you be digging downwards, or upwards ? The "top" or "bottom" of the earth is only relative to where you are standing or where you are viewing the earth from. Have you ever been to Australia ? There's shops there that sell Australian maps and globes wher Australia is at the "top" and Britain is at the " bottom". If you're on the ISS and view the earth, depending when you view it, the top and bottom would be different. In answer to your question about a plane flying around the world, of course it's never upside down, it's allways the right way up relative to earth ! Physically, mechanically, aerodynamically, commercial aircraft can't fly upside down. Cheers. f**k you've got some patience mate... I know its your quest to educate your young protege.... so hats off to your perseverance on that quest lol 2 Quote Link to post Share on other sites
mC HULL 12,514 Posted January 19, 2023 Report Share Posted January 19, 2023 (edited) 46 minutes ago, chartpolski said: Cheers. so australia should be called up top not down under Edited January 19, 2023 by mC HULL Quote Link to post Share on other sites
NEWKID 27,159 Posted January 19, 2023 Report Share Posted January 19, 2023 46 minutes ago, chartpolski said: Cheers. Just looks so wrong! Quote Link to post Share on other sites
mC HULL 12,514 Posted January 19, 2023 Report Share Posted January 19, 2023 1 minute ago, NEWKID said: f**k you've got some patience mate... I know it’s your quest to educate your young protege.... so hats off to your perseverance on that quest lol he’s just reciting what he’s believed for 7 decades mate may be right but it doesn’t to me 1 Quote Link to post Share on other sites
NEWKID 27,159 Posted January 19, 2023 Report Share Posted January 19, 2023 3 minutes ago, mC HULL said: he’s just reciting what he’s believed for 7 decades mate may be right but it doesn’t to me Mate you'd argue the sky is green... so getting stuck into quantum mechanics will be a field day for you.... 3 Quote Link to post Share on other sites
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