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New Theories / Re: An essay in futility, too long to read :)
« Last post by yor_on on Today at 20:26:16 »If you have my kind of humor, you should find this irresistible
" NATO is putting out the word these are not combat soldiers but are in Ukraine to operate sophisticated western hardware. But if they are firing at the Russians the only proper way to interpret their presence is that they are playing an active part in the shooting war. "
https://asiatimes.com/2024/04/why-china-risks-us-sanctions-arming-russia-survival/
" NATO is putting out the word these are not combat soldiers but are in Ukraine to operate sophisticated western hardware. But if they are firing at the Russians the only proper way to interpret their presence is that they are playing an active part in the shooting war. "
https://asiatimes.com/2024/04/why-china-risks-us-sanctions-arming-russia-survival/
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New Theories / Re: How do we measure the energy of a photon?
« Last post by hamdani yusuf on Today at 13:30:05 »Perhaps a simulation of what are possible under some mathematical models with some chosen assumptions.more and more evidence is coming that the Universe is a simulationIncomplete sentence. A simulation of what, pray?
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Technology / Re: Does regenerative braking have a hazardous complication?
« Last post by paul cotter on Today at 12:40:53 »Thanks Chris, that is an interesting observation. The car I am referring to may operate the brake lights during retardation at a higher speed than that which I was limited to in a ~30m driveway. Any strong retardation should activate the rear brake lights, in my opinion. Anything that adds to even a marginal increase in safety at no or negligible cost is a no-brainer.
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Technology / Re: Does regenerative braking have a hazardous complication?
« Last post by chris on Today at 11:52:05 »but neither function appears to activate the rear brake lights...
My car (fully EV, Polestar 2) can be set to one pedal or two pedal driving; the former makes maximum use of regenerative breaking and I barely need to use the brakes. It definitely puts the brake lights on in this mode.
So maybe this is a foible of some makes?
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New Theories / Re: How close are we from building a virtual universe?
« Last post by alancalverd on Today at 10:28:27 »Even if it were finite, you can't simulate it completely because the simulation would then be part of the universe, leading to an infinite recursion.
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New Theories / Re: Could quantum mechanics be wrong?
« Last post by alancalverd on Today at 10:26:36 »Schroedinger and Pauli.
Monatomic hydrogen is stable (it doesn't collapse or decompose) but extremely reactive, forming H2 if there's nothing more interesting to combine with.
Having a complete (Schroedinger) and fully populated (Pauli) σ orbital, H2 is not inclined to bond with another H atom to form H3.
Monatomic hydrogen is stable (it doesn't collapse or decompose) but extremely reactive, forming H2 if there's nothing more interesting to combine with.
Having a complete (Schroedinger) and fully populated (Pauli) σ orbital, H2 is not inclined to bond with another H atom to form H3.
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Physics, Astronomy & Cosmology / Re: why do a lot of people confuse between interference and diffraction?
« Last post by alancalverd on Today at 10:16:35 »Some of the important ideas for diffraction and interference are the same.I think students should be taught the difference between "one" and "many", or even "two", however unfashionable such pedantry may be.
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Technology / Re: Does regenerative braking have a hazardous complication?
« Last post by alancalverd on Today at 09:55:44 »[ These days Her = HisVery woke. Or possibly medieval, depending on how you look at it.
And speaking of the middle ages, should mine horse decide on a whim to stop suddenly without illuminating its posterior lantern, wouldst not the following rider be liable should he collide with us?
Not entirely irrelevant. The father of a childhood friend was unable to claim insurance for a hoofprint in the bonnet (hood) of his Daimler Dart (O blessed memory) because the Usurers of Lloyds Coffee House said he must have been driving too close to said animal.
Yea, bang up to date, forsooth, you may have seen recent TV footage of a couple of riderless horses cantering through London and colliding with various horseless carriages. The official explanation that they were military horses (as indeed they were) spooked by a loud noise (ibid) makes one wonder: hath not the British Army adopted ye musket, nay even the drum and bugle? Or were they perhaps Special Forces steeds trained with rubber shoes and covert whinnies?
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Science Experiments / Re: Investigation on diffraction of light
« Last post by hamdani yusuf on Today at 08:47:37 »https://youtube.com/shorts/nsxJQr57_is?feature=shared
What makes it different from single slit experiment?
What's the criteria to produce dark central spot?
What makes it different from single slit experiment?
What's the criteria to produce dark central spot?