Source………www.earthsky.org
Natarajan
Stephen Hawking, the world-renowned theoretical physicist and cosmologist, has passed away at the age of 76, leaving a scientific legacy behind him that will undoubtedly be remembered for many centuries to come.

Hawking was born on January 8th, 1942 in Oxford, the United Kingdom to two Oxford University graduates, Frank and Isobel. He had two younger sisters, Philippa and Mary, as well as an adopted brother named Edward.
The family moved to St. Alban’s, Hertfordshire, where they were considered to be both highly intelligent and somewhat eccentric by the locals. They lived frugally in a large, messy house and got around in a converted London taxi cab.
Following his primary and secondary school education, Hawking began his university education as an undergraduate at University College, Oxford in 1959. He was just 17 years old. Although the world only pictures him as a man confined to a wheelchair due to debilitating motor neuron disease that he was diagnosed with aged just 22, Hawking actually gained a reputation as being something of a daredevil during his university years.
He was the coxswain of a rowing crew at the University College Boat Club, and became notorious for steering his crew on risky courses, inevitably leading to a string of damaged rowing boats. He left University College with a Bachelor of Arts in natural science in 1962 prior to starting to work on his doctorate.

His diagnosis with a rare form of motor neuron disease occurred at that time, and it led to him becoming deeply depressed. Nevertheless, he was encouraged to continue his studies by his supervisor, Dennis William Sciama, and was eventually able to demonstrate that Einstein’s general theory of relativity implies space and time would have a beginning in the Big Bang and end in black holes.
During his graduate years at Cambridge, Hawking fell in love with his first wife, Jane Wilde, with whom he had three children. The marriage would end some 30 years later after the marriage succumbed to the pressures of Hawking’s fame, ideological differences and the difficulties surrounding caring for him in light of his disability.
Despite beginning to use crutches in the early 1960s, he long fought off having to use a wheelchair, but when he finally couldn’t do so any longer, he gained notoriety for wild driving on the streets of Cambridge. He also used to run over students’ toes intentionally and would even spin himself on the dancefloor at college parties.
Together with Roger Penrose, Hawking had his first major breakthrough in 1970. They were able to use mathematics to show that a singularity, a region of infinite curvature in space-time, was the point from which the big bang emanated.

After he realized that he was wrong in his argument about black holes being able to radiate, Hawking was in a Cambridge pub with his students when he suddenly turned up his voice synthesizer to full volume and bellowed that he was conceding defeat. Anyone who studied under his tuition or knew him personally knew him for his wicked sense of humor.
Hawking was elected to the Royal Society in 1974 aged just 32 after the series of radical discoveries he made during his early career, and would become the Lucasian professor of mathematics at Cambridge. The latter is often thought as the UK’s most distinguished academic chair and was once held by Isaac Newton.
His 1988 book, A Brief History of Time, catapulted Hawking to international stardom. It sold over 10 million copies and was translated into no less than 40 different languages. It was around that time that his marriage would begin to break down, but he would go on to remarry in the mid-1990s.
During his lifetime, he won the Albert Einstein Award, the Wolf Prize, the Copley Medal and the Fundamental Physics Prize, however, the Nobel Prize for Physics eluded him. He also returned to the White House (he had also visited during the Clinton administration) to receive the Presidential Medal of Freedom from Barack Obama.

His life has also been immortalized on screen, not least thanks to the multiple award-winning movie, the Theory of Everything. He also lent his voice and know-how to various documentaries over the years.
Perhaps it’s not surprising to know that Hawking was not a religious man, and dismissed the comforts of religious belief. With that being said, he had once told an interviewee that he wasn’t afraid of death, but he added that he wasn’t in any hurry to die due to how much work he had left to do. The great cosmologist is survived by his three children from his first marriage, together with his three grandchildren.
Watch Stephen Hawking being interviewed by Charlie Rose:
Source……..www.ba-ba mail.com
natarajan
AUSTRALIA: For the past day, people around the world at least the ones who can get past a certain spider video without screaming “kill it with fire!” have been engaged in a rigorous debate about whether Andrea Gofton is one of the most compassionate Australians on her continent, or simply insane.
This month, her community has endured its worst flooding in almost a decade nearly 20 inches since March 1

Homes and roads are flooded; students on a field trip to Echo Creek Adventure Park got more creek and more adventure than they were expecting; and towns have been declared a “disaster area.” Still, all things considered, the waterlogged population has escaped mostly unscathed.
At least the humans. It is a tough time to be an air-breathing animal in northeast Australia. Dens and burrows are flooded. Food sources are underwater and water-adept predators, particularly crocodiles, sharks and snakes, are riding newly-created waterways in search of unsuspecting prey.
But Gofton’s ethical dilemma came in the form of a not-so-tiny spider found clinging precariously to a tree branch: A giant Australian tarantula called the bird-eating spider.
It is, of course, almost instinctual for humans to want to save animals, even when they don’t do a particularly good job of it.
But there are some things about the spider that Gofton encountered that people need to know before deciding to reject the offer from #TeamKillItWithFire.
It is huge: The spider can grow to be the size of a man’s hand, a two-inch body with six-inch legs. That is bigger than some chihuahuas.
It has giant, venomous fangs. The tarantula’s fangs are nearly half an inch long, about a sixth the size of its body. The Queensland Museum says the tarantulas “can be quite aggressive if mishandled” and that the bite is “quickly fatal to dogs and cats,” but rarely causes serious illness in humans.
It has a deadly, if inaccurate nickname.Scientists have pointed out that the name “bird-eating” spider is, technically, a misnomer. The giant Australian tarantula only occasionally eats birds. Instead, it feasts on lizards, frogs and other spiders, a correction that is not at all reassuring.
It is standing right behind you. Okay. That one is technically a lie, but not as much as you think.
It hisses. Although some have said it’s more of a bark. Either way, the sound is nature’s way of saying “Don’t save me from this raging river, Andrea.”
But some people don’t listen.
Gofton and her friend Andrew Giliberto encountered the arachnid outside a SPAR Supermarket in the town of Halifax. The creature’s legs were intertwined over a flimsy branch, which was the only thing stopping it from being swept away by the water below, according to 9News Australia.
One of the Aussies filmed, while another put a hand close to the spider, apparently to see if it would latch on. It didn’t. So they snapped the branch that it was on and carried it to a nearby avocado tree, where they set it free.
They’ve spent the subsequent 24 hours going back and forth with ardent supporters of spider-cide, arguing that their actions were heartwarming, not horrendous.
Clearly, critics argued, Gofton had not gotten the message that giant spiders are notour friends.
“Nope nope, just nope,” one woman wrote on a post about the spider-save on a community Facebook group about the floods. “The tree has gotta be burnt, with a flame thrower.”
A short time later, Gofton replied: “I’m glad there are decent people out there, the negativity about an animal is beyond ridiculous.”
Of course the spider is the one who’s having the last laugh (hiss? bark?). It’s now safely weathering out what remains of the storm in the avocado tree outside the neighborhood supermarket.
That means some unsuspecting shopper may be in for a surprise, especially if the rescued spider is female.
Another fun fact about the giant Australian tarantula: Females can lay 50 eggs at a time.
Source…….www.ndtv.com
Natarajan