(On the energy radiated by the Sun)
It's four hundred million million million million watts. That is a million times the power consumption of the United States every year, radiated in one second, and we worked that out by using some water, a thermometer, a tin, and an umbrella. And that's why I love physics.
Mots clés science inspirational physics curious
Quantum fluctuations are, at their root, completely a-causal, in the sense that cause and effect and ordering of events in time is not a part of how these fluctuations work. Because of this, there seem not to be any correlations built into these kinds of fluctuations because 'law' as we understand the term requires some kind of cause-and-effect structure to pre-exist. Quantum fluctuations can precede physical law, but it seems that the converse is not true. So in the big bang, the establishment of 'law' came after the event itself, but of course even the concept of time and causality may not have been quite the same back then as they are now.
Sten F. OdenwaldMots clés science universe cosmology physics laws quantum-mechanics big-bang causation cause-and-effect singularity quantum a-causal fluctuations quantum-fluctuations
And as they drifter up their minds sang with the ecstatic knowledge that either what they were doing was completely and utterly and totally impossible or that physics had a lot of catching up to do.
Physics shook its head and, looking the other way, concentrated on keeping the cards going along the Euston Road and out over towards the Westway flyover, on keeping the street lights lit and on making sure that when somebody on Baker Street dropped a cheeseburger it went splat on the ground.
Mots clés humour absurd physics
...in principle, one can predict everything in the universe solely from physical laws. Thus, the long-standing 'first cause' problem intrinsic in cosmology has been finally dispelled.
Li Zhi FangMots clés science nature universe quantum-physics naturalism cosmology physics materialism laws big-bang origin beginning-of-universe
Es gibt keinen Gott und Dirac ist sein Prophet. (There is no God and Dirac is his Prophet.)
{A remark made during the Fifth Solvay International Conference (October 1927), after a discussion of the religious views of various physicists, at which all the participants laughed, including Dirac, as quoted in Teil und das Ganze (1969), by Werner Heisenberg, p. 119; it is an ironic play on the Muslim statement of faith, the Shahada, often translated: 'There is no god but Allah, and Muhammad is his Prophet.'}
Mots clés humor science atheism physics islam muslim allah prophet muhammad werner-heisenberg dirac paul-am-dirac paul-dirac heisenberg religious-views
THE QUESTION IS, OF COURSE, IS IT GOING TO BE POSSIBLE TO AMALGAMATE EVERYTHING,
AND MERELY DISCOVER THAT THIS WORLD REPRESENTS DIFFERENT ASPECTS OF ONE THING?
Mots clés science physics feynman-lectures-on-physics
CURIOSITY DEMANDS THAT WE ASK QUESTIONS,
THAT WE TRY TO PUT THINGS TOGETHER AND TRY TO UNDERSTAND THIS MULTITUDE OF ASPECTS
AS PERHAPS RESULTING FROM THE ACTION OF A RELATIVELY SMALL NUMBER OF ELEMENTAL
THINGS AND FORCES ACTING IN AN INFINITE VARIETY OF COMBINATIONS
Mots clés science physics particles feynman-lectures-on-physics
There is something stunningly narrow about how the Anthropic Principle is phrased. Yes, only certain laws and constants of nature are consistent with our kind of life. But essentially the same laws and constants are required to make a rock. So why not talk about a Universe designed so rocks could one day come to be, and strong and weak Lithic Principles? If stones could philosophize, I imagine Lithic Principles would be at the intellectual frontiers.
Carl SaganMots clés humor science life purpose philosophy nature universe funny meaning cosmology physics evidence laws
But every day I go to work I'm making a bet that the universe is simple, symmetric, and aesthetically pleasing—a universe that we humans, with our limited perspective, will someday understand.
George SmootMots clés science universe cosmology physics astronomy big-bang nobel-laureate astrophysics comprehensible understandable
Light is the only connection we have with the Universe beyond our solar system, and the only connection our ancestors had with anything beyond Earth. Follow the light and we can journey from the confines of our planet to other worlds that orbit the Sun without ever dreaming of spacecraft. To look up is to look back in time, because the ancient beams of light are messengers from the Universe's distant past.
Brian CoxMots clés science universe light physics
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