Money Stephen Hawking dies: 5 things to know about the legendary physicist

13:41  14 march  2018
13:41  14 march  2018 Source:   USA TODAY

Aust scientists pay tribute to Hawking

  Aust scientists pay tribute to Hawking Stephen Hawking, who has died aged 76, has been described by Australian scientists as an "A-list celebrity" who inspired others to challenge the unknown.Australian scientists have paid tribute to physicist Stephen Hawking as a legendary inspiration and great scientific communicator following his death in England aged 76.

On Stephen Hawking 's birthday, 5 things to know about the legendary physicist . World-renowned scientist turns 76 on Monday. Post to Facebook.

Happy birthday, Stephen Hawking . On Monday, the world-renowned physicist turned 76 years old. His work on theoretical physics has earned him countless honors, and has made him a key voice in understanding our universe. Here are five things to know about Hawking ’s life and career.

Legendary physicist Stephen Hawking has died at age 76, according to his family. Hawking's work on theoretical physics earned him countless honors, and made him a key voice in understanding our universe.

Here are five things to know about Hawking's life and career.

1. He was diagnosed with ALS at 21

The disease forced Hawking to remain in a wheelchair and depend on a computerized voice system to communicate. According to Live Science, the average life expectancy after an ALS diagnosis is three years, with only 5% living 20 years or more. Genetics could have played a key role in Hawking's survival, Live Science reports. Studies suggest people diagnosed at a younger age tend to live much longer.

2. One of his biggest discoveries involved black holes

Working with fellow scientist Roger Penrose, he showed Albert Einstein's theory of relativity suggested space and time had a definitive beginning and end. This led to the theory that black holes aren't completely black, but emit radiation and eventually disappear.

Stephen Hawking holding a gun: Stephen Hawking. © Matt Dunham, AP Stephen Hawking.

3. His book, 'A Brief History of Time,' was a record-breaker

In 1988, Hawking published a book targeting non-scientists to help explain fundamental questions such as how the universe started and whether it will end. It set a record by spending more than five years on The Sunday Times bestseller list, and was the No. 1 all-time book on their list as of 2014.

4. He held 12 honorary degrees

Among Hawking's other accolades: In 1982, he received the Commander of the Order of the British Empire honor and was awarded the Presidential Medal of Freedom in 2009. He was also named a Fellow of The Royal Society, comprised of "the most eminent scientists, engineers and technologists from the UK and the Commonwealth," according to the society.

5. He was really worried about the future of humanity

Hawking expressed concern that the world's citizens could consume enough energy to turn Earth into a ball of fire within 600 years. That is, unless the rise of artificial intelligence doesn't get to us first.

Follow Brett Molina on Twitter: @brettmolina23

Comment: Stephen Hawking Was Right To Worry About Our Impending Doom .
Stephen Hawking devoted a considerable amount of time warning of future threats - from the perils of climate change and nuclear war through to artificial superintelligence and alien invasions. And for this he was often ridiculed. But here's the thing: Hawking was right - and it would be incumbent upon all of us to heed his advice.

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