Recent content by Lord Crc

How does neutrinos get mass if the current SM is all there is? Thought it needed an extension to explain that if it's not multiple Higgs bosons.

I still think I was on to something, but got it the wrong way around. If a firecracker A goes off, the gasses will form an expanding high-pressure region around the firecracker. As the gasses expand, the pressure drops. If another firecracker B next to it goes off shortly after, B's gasses will...

Wouldn't each firecracker going off produce a volume of low density around it for a short while? If so, a firecracker going off next to it "immediately" afterwards will have less air to push against, hence make less of a pressure wave?

According to Wikipedia there's some speculation this might have happened in the very early universe, but I can't judge how reasonable this is. https://en.wikipedia.org/wiki/Quasi-star

The Cosmicwatch uses a SiPM chip which is rather expensive in low quantity (~90 EUR), and requires SMD soldering. I see Geiger tubes go for about $15 from Ebay or similar, and saw a design using three along with some 74HC's for pulse shaping and coincidence detection (top and center or bottom...

Besides finding the Higgs, what's the most prominent results from Atlas and CMS till now? LHCb folks seem to be good at spreading their news around so heard plenty about their work.

Since you say this is for a project, surely you can discuss this with whomever you'll use for producing these transistors. Clearly cost is not an issue, or you would go for multiple off-the-shelf transistors. At high current levels the package can quickly be a limiting factor. I'm assuming the...

Instead of having one high-gain amplification stage it's typically beneficial to have two lower-gain stages, at least with opamps. This gives you better bandwidth for example. Also note ond of the stages is inverting, which has different characteristics from non-inverting opamp stages. I don't...

From the presentation I linked to, he said that so far the "intrinsic" momentum space he's been using is flat. Hence currently no GR-like results have emerged. His goal is to use a curved momentum space instead, and with that hopes to get GR out, but so far it's too early. As I said it feels a...

I think a lot of this can be traced back to the work on the ridiculon[1]. [1]: https://groups.google.com/g/sci.nanotech/c/QlsQPORilE8

Ah I thought he said the paper was to appear, and I only scanned the last half year. As you say I also thought that it was cheating a bit to add momentum space by hand, so in this sense it does not feel fundamental enough. However it feels like a worthwhile pursuit, in that it may be a good...

IIRC he said the latest stuff is due to appear on arXiv, but I haven't seen it yet. But it builds on energetic causal sets and other previous work. I'm no expert so I can't really judge it, but to me it seemed interesting and worth keeping an eye on.

Not sure if it was already mentioned but in Lee Smolin's latest work he explicitly says the fundamental theory has no (non-gauge) symmetries. So I assume then he means they are emergent. He gives an overview in this recent presentation: http://pirsa.org/20110056

Matt Strassler IIRC used colors to indicate when he hand-waved over some important math/physics details in some of his blog posts about the standard model. I thought that worked well, as it gave some idea where there might be dragons while keeping it accessible. Perhaps something similar could...

Dumb question, instead of "in the limit" etc can't you just go "near the speed of light" or similar? Something like "that is, are there neutrinos that spin counter-clockwise along the direction of motion when traveling near the speed of light?" Or is that too imprecise?