The rotation speed of the earth exceeds 1.6 km/h, which also makes everything on this planet messy.
The flying speed of an ordinary airliner is about 885-925 km/h. The Lockheed SR-71 Blackbird is one of the fastest jet aircraft in the world with a top speed of 3,379 km/h. The NASA/USAF X-15, or the North American X-15, is the fastest manned jet aircraft in the world, with a speed of approximately 7,274 km/h.
In comparison, is it surprising that the Earth spins at half or a quarter of the speed of the world’s fastest jet aircraft?follow scientific american , the rotation speed of the Earth’s surface at the equator is only 1,609 km/h. However, earlier this year the Earth rotated slightly faster, but enough to shorten the 24-hour day on June 29 by 1.59 milliseconds.
Why is so little time worth the trouble? A 1 km/h increase in the Earth’s rotation would also have tangible effects on the entire planet, according to a scientific report.during an interview popular scienceGeographic information systems analyst Witold Fraczek said a slight increase in Earth’s speed would also disrupt satellite communications and television broadcasts and raise sea levels at the equator by a few meters as ocean water recedes from the poles.
If the earth rotates faster than 1km/h, our time will be shortened by about 90 seconds, and nothing can affect the circadian rhythm. However, if our planet suddenly accelerated and rotated at more than 160 km/h, the span of a day would be shortened to 22 hours, potentially disrupting the natural biological clocks of humans, animals and plants.
Fraczek also said that at this rate, we could say goodbye to northern Australia, the Amazon Basin and many equatorial islands. In these regions, the oceans can rise as much as 20 meters above the surface as water from the northern and southern oceans is pulled into the middle of the planet.
If we increase the Earth’s rotation rate to 3,200 km/h, we double the Earth’s natural speed. The entire equatorial region is engulfed, except for the highest peaks such as Kilimanjaro and the Andes. The water level of the Arctic Ocean will drop sharply, the equatorial region will continue to be cloudy and rainy, and the water-holding gravity will weaken.
What would happen if the Earth’s rotation accelerated 17 times?
As the Earth spins, centrifugal force pulls across the Earth’s surface. If the pull is strong enough, houses, cars, and everything including you will be thrown from Earth into space. However, a stronger gravitational pull than that would still keep everything touching the ground. If the Earth spins faster, objects get lighter and lighter, starting at the equator and moving towards the poles, as the increased gravitational force is overcome by the increased centrifugal force.
With the Earth spinning at over 27,300 km/h, the centrifugal force at the equator would equal the force of gravity, which would cause retrograde rain, meaning water from below would rise into the atmosphere. Of course, it’s unlikely we’ll live to see this phenomenon.
If the Earth’s rotation rate were set at 38,624 km/h for thousands of years, the crust would shift, the poles would flatten, and the equator would bulge, making earthquakes more powerful.
According to scientists, the speed of the Earth is always changing. Earthquakes, tsunamis, and melting ice all affect Earth’s speed to a small extent.
The speed of the Earth’s rotation also varies with time. Around 4.4 billion years ago, many theories suggest that the Moon formed from debris from a collision with Earth. At that time, the earth was shaped like a flattened ball, rotating very fast, and there were only 4 hours in a day.
After the formation of the moon, affected by the gravity of the moon, the rotation speed of the earth gradually slowed down to about 6.1 km/h every 10 million years.