background preloader

Dimentions

Facebook Twitter

Lesson 288 - Alternate Universes, Part II. The Ultimate Field Guide to Subatomic Particles - io9. This is, for the most part, an accurate article, except for a few statements. "Exactly what makes a fermion a fermion is a bit complicated, but suffice it to say that fermions are all the particles that deal with matter. So what about the last group of elementary particles, the ones that don't deal with matter? These are the bosons, and they deal with the fundamental forces of the universe. " The statements above can be misinterpreted as suggesting that fermions are defined as particles that deal with matter and bosons are defined as particles that deal with forces. And that is not true. It's actually the other way around. Particles that deal with matter are fermions and particles that carry the fundamental forces are bosons. What fermions and bosons really are have to do with two apparently unrelated (but actually related) particle properties: spin and statistics.

"There are four known bosons" See, this is an example of the misconception I just mentioned. Actually, that isn't true. Quantum Mechanics. StumbleUpon. Zeno's "Paradox of the Arrow" passage from Biocentrismby Robert Lanza M.D.Related Posts:The Paradox Of The Infinite CircleThe Liar ParadoxThe Barber Paradox Tags: paradoxes Posted in Time Comments It's just an exercise in logic by an ancient philosopher. It's unfortunate that you can't wrap your head around the idea, but that doesn't make the one who thought of it stupid. String Theory. String theory was first studied in the late 1960s[3] as a theory of the strong nuclear force before being abandoned in favor of the theory of quantum chromodynamics. Subsequently, it was realized that the very properties that made string theory unsuitable as a theory of nuclear physics made it a promising candidate for a quantum theory of gravity.

Five consistent versions of string theory were developed until it was realized in the mid-1990s that they were different limits of a conjectured single 11-dimensional theory now known as M-theory.[4] Many theoretical physicists, including Stephen Hawking, Edward Witten and Juan Maldacena, believe that string theory is a step towards the correct fundamental description of nature: it accommodates a consistent combination of quantum field theory and general relativity, agrees with insights in quantum gravity (such as the holographic principle and black hole thermodynamics) and has passed many non-trivial checks of its internal consistency. Ice Age in 4D. The Tenth Dimention. Brian Greene on string theory.