Chinese project that can change earth's rotations

Moreover, the dam's water supply is enough to change earth's rotation.

Since the announcement of the $30 billion project, Chinese officials have faced great scrutiny by both scientists and environmental activists. Many believe the dam will eventually result in disaster.

Some concerns include the pollution of dams, pollution and landslides, the evacuation of residents, as more than 1.3 million people have already been forced to move and destroy historical sites, along with the endangered animal area.

The government finally acknowledged that the project was badly conceived, after years of dam research one of the most spectacular pieces of engineering in Chinese history, but the damage has already been done.

However, the dam is not all bad. The last 32 generators, each generating 50MW of energy, went into operation at the end of July last year, and the hot water produced has enough power to generate some 22.5 million kilowatts, which equals about 15 nuclear reactors.

This does not cause concerns about radioactive materials, and it is very good, especially after Chernobyl and Fukushima nuclear events, so the negative effects of its construction can be ignored by the majority, largely because of the fact that it is a clean and effective way to power a thriving population.

dams extend well beyond its environmental impact and its ability to provide much needed energy. It's also changing how the Earth itself spins.

A mass change of that size will affect the rotation of the Earth due to a phenomenon known as “the inert mode”, which is the inertity of a solid rotating body in relation to its rotation.

The moment an object's inertity about a given axis describes how difficult it is to change the angle movement in that axis. The longer a measure's distance to its spin axis, the slower it will roll.

You don't know, but you see examples of this in everyday life.

For example, a skater to roll faster will draw his narrow arms into her body, and thus reduce her moment of inertia. Similarly, a diver who tries to pass quickly will bring his body to an elevated position.

Raising 39 trillion pounds [175 m] of water above sea level will increase the Earth's inertation moment and thus slow down its rotation.

However, the impact will be extremely small. NASA scientists calculated that shifting such a measure would increase the length of the day by just 0.06 microseconds and make the Earth just a little bit more in the middle and more flat at the top.

It will also shift its position by about two inches (0.8 cm). Note that a change in the size of any object on Earth regarding its rotation axis will change the moment of inertia, even though most shifts are too small to measure.

Not to worry, however, earth's rotation is often changed, with various variables added to the equation. First, the moon is gradually leaving the earth, changing so little of the earth's rotation.

Earthquakes (such as those in Japan in 2011) also help along the process (the same temperature changed earth's rotation by 2.68 microseconds).

Moreover, every five years or more, the length of the day grows and shrinks to about a milliseconds, or about 550 times the change caused by the Japanese earthquake. (TemA TV)