18 posts tagged with relativity. (View popular tags)
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Project GREAT: General Relativity Einstein/Essen Anniversary TestThink your dad was a nerd? A mad genius? Was he a Clark Griswold-esque cheerleader for outdoor family vacations? You ain't seen nothin' yet.
Clocks, Kids, and General Relativity on Mt Rainier
These subjects still fascinate me after a lifetime of interest: faster-than-light speed, alternate time streams, parallel universes,
time travel, antiparticles moving backward in time, time loops, and the recurring themes of paradox -- all serious but astonishing ideas of science. Something about them inspires infinite possibilities. Am I not alone?
posted by ember
on Mar 12, 2009 -
64 comments
On Truth and Reality. Despite several thousand years of failure to correctly understand physical reality (hence the current postmodern view that this is impossible) it is actually very simple to work out how matter exists and moves about in Space. The rules of Science (Occam's Razor / Simplicity) and Metaphysics (Dynamic Unity of Reality) require that reality be described from only one single source existing, as Leibniz wrote: "because of the interconnection of all things with one another." [more inside]
posted by netbros
on Jan 30, 2009 -
46 comments
Where no economist had gone before . Paul Krugman posts a type-written paper on interstellar trade which he wrote as "an oppressed assistant professor" in the '70s. I do not propose to develop a theory which is universally valid, but it may at least have some galactic relevance. [pdf link]
posted by grobstein
on Mar 11, 2008 -
25 comments
Quantum Mechanics: Myths and Facts (pdf), a recently-updated paper on the Cornell arXiv peer-review site. By Hrvoje Nikolić of the Rudjer Bošković Institute in Croatia. [more inside]
posted by XMLicious
on Feb 25, 2008 -
47 comments
Relativity "Lite."
posted by Citizen Premier
on Aug 30, 2007 -
18 comments
Today's post of tenuously related audio brings you ten historic radio broadcasts, 529 eternal questions in popular music, and one mildly amusing black metal band prank call.
posted by goodnewsfortheinsane
on Aug 29, 2007 -
11 comments
"We have broken speed of light." So say Dr. Gunter Nimtz and Dr. Alfons Stahlhofen of the University of Koblenz, in this article from New Scientist. Dr. Nimtz's work has been cited on MeFi before.
posted by hermitosis
on Aug 16, 2007 -
54 comments
Science sites of all kinds for kids. Archeology. Entomology. Natural Symphony. Baseball in Space. Philosophy. Process or Content. Science songs. Physics songs, relativity. String theory. Science and Art.
posted by nickyskye
on Jun 26, 2006 -
9 comments
Einstein TOR DVD is a mostly animated feature film from the early 1920s, long thought to be lost, featuring animation from the incredible Max Fleischer (who is responsible for the seriously cool Superman animated cartoons). For $15, looks like a must-have for animation buffs and science geeks.
posted by dbiedny
on Apr 21, 2006 -
17 comments
Hyperdrive and a possible Unified Theory. New Scientist article about a paper and proposal to NASA outlining development parameters and possiblities for a faster-than-light anti-gravity propulsion system, based on some rather interesting physics theories originated by a guy named Heim. You mean you've never heard of the Millenium Falcon? (via)
posted by zoogleplex
on Jan 9, 2006 -
70 comments
The sun is solid (this has beautiful images, btw). The earth is fixed, or maybe growing; relativity is wrong, and so is most of current thinking... For the intriguing as well as the insane, visit the fringes of science.
posted by mdn
on Jan 5, 2006 -
45 comments
What would Tübingen look like if you traveled through it at the speed of light?
posted by feathermeat
on Dec 29, 2005 -
33 comments
Does dark matter exist? Dark matter has been suggested as a solution to the galaxy rotation problem where individual stars don't seem to rotate the way Newton's laws would predict. Now, some scientists are saying that observations fit with Einstein's general relativity, without any dark matter needed. I just find it amazing that no one has tried this yet.
posted by delmoi
on Oct 10, 2005 -
45 comments
Does relativity have any practical significance? In fact, relativity had to be taken into account by the designers of the Global Positioning System. The GPS satellites are affected both by special relativity (since the satellites are moving, clocks aboard them appear to run slower as seen from the ground), and by general relativity (since the satellites are farther away from the mass of the earth, clocks appear to run faster as seen from the ground). The net effect of both is that clocks aboard GPS satellites would gain 38 microseconds per day relative to the ground, if relativistic effects were not corrected for--a figure which can be confirmed by using Google calculator.
posted by DevilsAdvocate
on Nov 30, 2004 -
26 comments
The Mystery Spot in Santa Cruz, California is one of many places in the US that challenge the theory of relativity. Berkeley psychologists have a theory about these mystery spots. Another Berkeleyan visited the spot and documented his tour. Some have done their own comprehensive tests and came to a different conclusion. A book was written to describe these gravitational anomalies, skeptics and believers all have an opinion ... but where does the truth lie?
posted by jasonspaceman
on Jul 17, 2003 -
32 comments
Albert Einstein's Theory of Relativity in words of four letters or less
posted by Mwongozi
on Feb 5, 2003 -
30 comments
In an interesting test of the theory of relativity they found that gravity travels at the same speed as light. Put simply if the sun were to disappear from existence it would take some 8 minutes before the Earth's orbit would be affected by the loss. Sadly this also means that FTL travel is becoming less and less likely to be possible.
posted by aaronscool
on Jan 7, 2003 -
18 comments