World Today

 three gorges dam Three gorges, a gravity type dam, was the largest dam structure in the world, constructed on Yangtze River in China which is the Asia’s longest river. The construction of the dam began in 1994 and ended in 2003, it was the largest engineering project in China. The dam has the length of 2335m and the height of 181m. It had the installed capacity of the power station as 22500MW and generates the annual power of 87TWh. Its construction cost is ¥203 billion. The total capacity of the reservoir is 39.3 cubic km. NASA has calculated that the dam only slows the rotation by 0.06 microseconds, which is six hundredths of a millionth of a second. Our planet’s rotation speed actually fluctuates fairly often, as it can be influenced by earthquakes, the moon, and the climate change-induced movement of the North Pole. Engineering concept: Moment of inertia: Moment of inertia is a quantity that determines the torque needed for a desired angular acceleration about a r...

More than 80 millionaires on 13 th July 2020 urged government around the world to tax the super wealthy much more to help fund for the global recovery from the coronavirus outbreak. In an open letter, the group calling themselves “ Millionaires for humanity ,” said they should be taxed higher, “immediately, substantially and permanently”. The letter was published before the forthcoming meeting of G20 finance ministers. The G20 (or Group of Twenty ) is an international forum for the governments and central bank governors from 19 countries and the European Union (EU), founded in 1999 with the aim to discuss policy pertaining to the promotion of international financial stability . In that letter they said,   “ To the fellow global citizens, As coronavirus strikes the world, millionaires like us have a critical role to play in healing our world. No, we are not the ones caring for sick in the intensive care wards. We are not driving the ambulances that will bring th...