Bachelor of Computer Application, BCA, TU
014240005, Putalisadak Kathmandu
Astronomers announced they had detected a planet 1.3 times the mass of Earth. It is called Proxima b just 4.2 light years away. According to Paul Butler from the Carnegie Institute of Washington what Proxima b does is act like a neon sign. It sits in the Goldilocks zone of the faint red dwarf star, you will not find a planet closer one than this.
The heaviest naturally occurring, stable element is uranium with 92 protons in its nucleus. Elements heavier than that, such as plutonium, are made in nuclear reactions. The latest elements to be recognised are nihonium (113), moscovium (115), tennessine (117) and oganesson (118). Nihonium has 113 protons in its nucleus and decays very quickly. It has a half-life of 20 seconds. The heaviest of the elements named is oganesson, with an atomic number 118 (the number of its protons). Its half-life is 0.89 microseconds.
It was in the year 1856 when William Perkin had intention of curing one of the deadliest disease in the world malaria. While trying to replicate the malaria fighter quinine in his laboratory, Perkin inadvertently discovered the color mauve instead. It was used in the synthetic dye industry.
When a woman complaining about pain in her arm and shoulder went to a doctor. In a series of X-RAYS her bones were vanishing before the doctor’s eyes. The woman was diagnosed with Gorham –Stout disease also known as the vanishing bone disease an extremely rare condition in which a person experience progressive bone loss.
Researchers at MIT and University of California, Berkeley figured out how to pull water out of thin air. Scientists developed a device that pulls water out of the air in weather conditions where there is only 20% humidity. It's a solar-powered device that uses a metal-organic framework made of zirconium and fumarate to suck water vapor out of the air. The prototype was able to pull three quarts of water in 12 hours while sitting in an area that had 20% to 30% humidity.