Real Relativity by Einstein
Real Relativity by Einstein
Chaos
In 1917 Albert Einstein wrote a paper that was completely ignored for 40 years. In it he raised a question that physicists have only, recently begun asking themselves: What would classical chaos, which lurks everywhere in our world, do to quantum mechanics, the theory describing the atomic and subatomic worlds? The effects of classical chaos, of course, have long been observed-Kepler knew about the motion of the moon around the earth and Newton complained bitterly about the phenomenon. At the end of the 19th century the American astronomer William Hill demonstrated that the irregularity is the result entirely of the gravitational pull of the sun. So thereafter, the great French mathematician-astronomer-physicist Henri Poincaré surmised that the moon’s motion is only mild case of a congenital disease affecting nearly everything. In the long run Poincaré realized, most dynamic systems show no discernible regularity or repetitive pattern. The behavior of even a simple system can depend so sensitively on its initial conditions that the final outcome is uncertain.
Article: http://www.scientificamerican.com/article.cfm?id=quantum-chaos-subatomic-worlds
physics humor
White Holes
A white hole, in general relativity, is a hypothetical region of spacetime which cannot be entered from the outside, but from which matter and light may escape. In this sense it is the reverse of a black hole, which can be entered from the outside, but from which nothing, including light, may escape. (However, it is theoretically possible for a traveler to enter a rotating black hole, avoid the singularity, and travel into a rotating white hole which allows the traveler to escape into another universe.)
Like black holes, white holes have properties like mass, charge, and angular momentum. They attract matter like any other mass, but objects falling towards a white hole would never actually reach the white hole’s event horizon.
See also; Event Horizons
HH: Now I have to worry about falling into or getting sucked into white holes along with black holes and ending up in a different universe …HA!
Einstein with Einstein
Portrait of Albert Einstein as a Child
J. Robert Oppenheimer ina porkpie hat, Princeton,New Jersey, 1947.
In reference to the Trinity test in New Mexico, where the first atomic bomb was detonated, Oppenheimer famously recalled the Bhagavad Gita: “If the radiance of a thousand suns were to burst at once into the sky, that would be like the splendor of the mighty one… Now, I am become Death, the destroyer of worlds.”
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Dear physics professor,Sorry I didn’t come to class today, I was unable to overcome inertia. Sincerely, objects at rest stay at rest.
“The Miracle” - Einstein on a Burned Tortilla
The Miracle 1997
burned tortilla, velvet on wood 14” x 13” x 2-1/4 - Sarah Perry
The Einstein You Never Knew
http://www.life.com/image/ugc1036022/in-gallery/41492/the-einstein-you-never-knewEinstein’s views on religion, spirituality, and God are so seemingly contradictory that, over the years, he’s been held up as everything from a paragon of outright atheism to a model of progressive Judaism (despite writing that “the Jewish religion like all others is an incarnation of the most childish superstitions”). Perhaps the single most revealing quote of Einstein’s on the topic is this: “I believe in [Dutch philosopher Baruch de] Spinoza’s God who reveals himself in the orderly harmony of what exists, not in a God who concerns himself with fates and actions of human beings.” In the end, though, Einstein’s take on God and the idea (or myth) of an afterlife is irrelevant. The man heightened humanity’s understanding of how the universe works, while deepening our appreciation of the marvelous, challenging, beckoning mysteries that remain. Pictured: Einstein in his home in Princeton, NJ, in 1947.