Stephen Hawking: Questioning the universe
Stephen Hawking: Vprašanja o vesolju
Stephen Hawking's scientific investigations have shed light on the origins of the cosmos, the nature of time and the ultimate fate of the universe. His bestselling books for a general audience have given an appreciation of physics to millions. Full bio
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o katerih bi želel govoriti, so:
da je vesolje v bistvu statično
morale biti bolj skupaj.
da smo morali biti drug vrh drugega
začetkom Velikega poka?
iz Velikega poka tako, kot je?
in splošna relativnost,
v vsem prostoru ob določenem času.
ni bilo vprašanje.
razvoja in začetne pogoje
ločena in različna.
splošna relativnost in kvantna teorija
kot še ena razsežnost prostora.
določajo začetno stanje.
verjetnosti, ki jih je vesolje
ki je odtis ranega vesolja,
skrivnost stvarjenja.
za njihov obstoj.
drugemu velikemu vprašanju:
kakšno življenje v vesolju?
življenje pojavilo spontano,
pojavlja na drugih primernih planetih,
je pojavilo prvo življenje.
izpred 3,5 milijarde let.
pred 4,6 milijardami let
približno prvo polovico milijarde let.
na 10 milijardno življenjsko dobo
življenje pojavi, dokaj visoka.
bi bilo pričakovati,
od 10 milijard let, ki so na voljo.
nezemljani niso obiskali.
usekancem in čudakom?
da zadržujejo poročila
ki jih nezemljani prinašajo,
neverjetno učinkovita politika.
iskanju s projektom SETI,
televizijskega kviza nezemljanov.
da ni nobene tuje civilizacije
je videti precej varno.
zadnjega od velikih vprašanj:
inteligentna bitja v galaksiji,
da bomo preživeli in ostali.
nevarno obdobje naše zgodovine.
omejenih virov planeta Zemlje
da spremenimo okolje na dobro ali slabo.
in agresivne nagone,
prednost za preživetje.
tisoč ali milijon let.
za dolgoročno preživetje ni,
noter na planet Zemljo,
naredili izjemen napredek.
tudi po naslednjih sto letih,
sem skušal razumeti vesolje
ni ni resno ovirala.
več časa, kot večini ljudi,
ugibati v katero koli smer,
da je verjetnost večja, kot ne,
inteligence ali višje?
kar mi je dalo dober vpogled v to,
za TED je bil ves ta govor.
zelo verjetno, da smo edina civilizacija
da civilizacije ne trajajo zelo dolgo,
kot poslovilno opozorilo
ABOUT THE SPEAKER
Stephen Hawking - Theoretical physicistStephen Hawking's scientific investigations have shed light on the origins of the cosmos, the nature of time and the ultimate fate of the universe. His bestselling books for a general audience have given an appreciation of physics to millions.
Why you should listen
Stephen Hawking is perhaps the world's most famous living physicist. A specialist in cosmology and quantum gravity and a devotee of black holes, his work has probed the origins of the cosmos, the nature of time and the universe's ultimate fate -- earning him accolades including induction into the Order of the British Empire. To the public, he's best known as an author of bestsellers such as The Universe in a Nutshell and A Brief History of Time, which have brought an appreciation of theoretical physics to millions.
Though the motor neuron disorder ALS has confined Hawking to a wheelchair, it hasn't stopped him from lecturing widely, making appearances on television shows such as Star Trek: The Next Generation and The Simpsons -- and planning a trip into orbit with Richard Branson's Virgin Galactic. (He recently experienced weightlessness aboard Zero Gravity Corporation's "Vomit Comet.") A true academic celebrity, he uses his public appearances to raise awareness about potential global disasters -- such as global warming -- and to speak out for the future of humanity: "Getting a portion of the human race permanently off the planet is imperative for our future as a species," he says.
Hawking serves as Lucasian Professor of Mathematics at the University of Cambridge, where he continues to contribute to both high-level physics and the popular understanding of our universe.
Stephen Hawking | Speaker | TED.com