First death anniversary of brilliant Cambridge theoretical physicist and cosmologist who became an icon of scienc, Stephen Hawking is being observed today (March 14).
His scientific works included a collaboration with Roger Penrose on gravitational singularity theorems in the framework of general relativity and the theoretical prediction that black holes emit radiation, often called Hawking radiation. Hawking was the first to set out a theory of cosmology explained by a union of the general theory of relativity and quantum mechanics. He was a vigorous supporter of the many-worlds interpretation of quantum mechanics.
In 1963, Hawking was diagnosed with amyotrophic lateral sclerosis “ALS” or Lou Gehrig’s disease) that gradually paralysed him over the decades. Even after the loss of his speech, he was still able to communicate through a speech-generating device.
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