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Showing results for tags 'the outer rim'.
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If you hang through the refreshers, I bet he'll blow your mind at the end.....
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the outer rim Quantum entanglement fun
RichP714 posted a topic in The Outer Rim's Fun with Quantum theory
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the outer rim What is the speed of dark?
RichP714 posted a topic in The Outer Rim's Outer Rim Topics
Something fun -
the outer rim Bad news for flat earthers
RichP714 posted a topic in The Outer Rim's Outer Rim Topics
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the outer rim Black is the new orange
RichP714 posted a topic in The Outer Rim's Fun with Quantum theory
How the blackness of space used to be orange. For some reason, his explanation of what it meant for the universe to have become 'transparent' clicked (with me) some 35 years later..... -
the outer rim Orbitals are NOT Orbits
RichP714 posted a topic in The Outer Rim's Fun with Quantum theory
B-man mentioned that when he was in school, the atom was the smallest object in nature; electrons have been known since 1890; I had no idea he was so long lived; congrats! -
the outer rim Space Time space-time
RichP714 posted a topic in The Outer Rim's Fun with Quantum theory
A walk back to a key principle, which may help in understanding non-Euclidian space; or at least help one understand that trying to apply Euclidian characteristics to space-time doesn't work. -
Let's unmix that paint (or reveal the sinusoids in a composite signal)
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the outer rim Deepsky viewing for February
RichP714 posted a topic in The Outer Rim's Outer Rim Topics
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Teleportation of objects larger than subatomic particles? Sure, but ..... INTERFERING ATOMS (Discover, 1996) Stopping atoms in their tracks is not the only way to get them to show their wavelike nature. Another way is to throw them at a grating with slits so small and tightly spaced that each atom wave passes through two slits at once and is thus split in two. The split waves can then be recombined to produce an interference pattern‑alternating bands of intensity in which the matter waves either cancel each other or reinforce each other, just as interfering light waves do. MIT physicist David Pritchard first measured such atomic interference in 1988. Last February Pritchard and his colleagues reported another first: using the silicon nitride grating shown here, whose slits are just a few hundred‑millionths of an inch apart, they managed to separate the split atom waves enough to do separate experiments on them. (The closer the spacing of the slits, the more the waves diverge after they pass through the grating.) The researchers passed one of the waves through a gas or an electric field while leaving the other alone. By observing the effect on the interference pattern‑which is extremely sensitive to any tampering with one of the component waves Pritchard and his team made fundamental measurements that were not possible before. They measured the susceptibility of sodium atoms to electric fields and the degree to which sodium atom waves are refracted‑bent and attenuated‑as they pass through another gas and the atoms in that gas attract them. Physicists armed with optical interferometers have been able to make similar measurements on light waves for the last century or so‑but light waves are 10,000 times longer than atom waves, which means they can be diffracted with much coarser gratings than the one in Pritchard's atom interferometer. Pritchard has managed to send entire sodium molecules through his device, and in principle, even something as large as a living bacterium could hurtle through it in wave form. But quantum mechanical trade‑offs mean that such a large chunk of matter would take thousands of years to pass through the grating. For the moment at least, physicists must be content with finally being able to exploit the wave nature of atoms.
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the outer rim What is Quantum Spin?
RichP714 posted a topic in The Outer Rim's Fun with Quantum theory
QFD physicists like to use colorful terminology for attributes of sub-atomic particles. 'Spin' as used by QFD theorists has nothing to do with rotation of a mass. So what is it? This refresher will come in handy later -
If more people understood the difference between flow and charge, there'd be less BS talk about propagation delay, dielectric slew et al in the cable industry
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