Making many High Skyscraper is Dangers for rotations and spinning of the Earth ? Do Scientists and Engineer have any idea in this regard ? The world becoming densely populated day by day and skyscrapers become more on the earth as Energy of the Earth remain same like we are transferring Mass from other places to a place in well organized manner. Is this affect the Earth Rotation And Revolution ?
Interesting point. The angular momentum mvr is conserved, absent an external force, so the more skyscrapers are built, the more we move the center of mass of the earth upward (increasing r). Which must reduce the angular velocity.
However, something must also fill in the holes created when the material to build the skyscraper was gathered up. That would tend to move some mass down, closer to the center of the earth, which would tend to accelerate the earth's spin. If nothing else, erosion with rain would tend to fill in the holes created in the building process.
And then again, we have volcano eruptions that create lava flows. Those too will tend to bring mass outwards.
Being optimistic by nature, I will suggest that there are probably enough counter-acting natural phenomena, such that the effect of building skyscrapers is countered, on average, by opposite effects.
Hi Zeeshan Ilyas ,
it is a very intresting question, the key is that the sum of the angular momentum (push) of the solid Earth plus atmosphere system must stay constant unless an outside force (torque) is applied,” Salstein said. “So if the atmosphere speeds up (stronger westerly winds) then the solid Earth must slow down (length-of-day increases).Also if more atmosphere moves to a lower latitude (further from the axis of rotation), and atmospheric pressure increases, it also gains angular momentum and the Earth would slow down as well.
Regarding this, it can definitely be true, but! I don't think that it is that much noticeable for being worried about it right now!
btw, thank you for such a nice challenging question!
How do you define "dangerous"? The earth's core is massive and dense (Fe & Ni). Skyscrapers would have a negligible effect. As mentioned above, mountain building, in terms of creating mass above sea level, would have a far greater effect on the earth's rotation relative to building skyscrapers. I think to characterize "High Skyscraper" as Dangerous "for rotations and spinning of the Earth" is overreach.
- Badges
- Science topic
- Similar topics
- Engineering