eigenket

46 ms·

631.
by eigenket 5y ago
A norm (meaning a definition of "length") where the length of a vector is defined as the largest absolute value of any of its components. Its one of the standard lp norms, you get a norm for every p in the closed interval [1,infin
632.
by eigenket 5y ago
I disagree with this basically completely. In quantum physics labs around the world we put things in superpositions of being in different positions all the time, mainly we do it with photons and electrons, but people are doing it with large
633.
by eigenket 5y ago
The NHS provides very comparable treatment to France and Germany in my experience, given that it is cheaper than both do you have any evidence to back up your claim that it is worse value for money? I have also lived in Poland for a time, b
634.
by eigenket 5y ago
This has not been my experience.
635.
by eigenket 5y ago
It sounds like you should be voting for parties that want to put more funding into the NHS then, right? Its both way cheaper than its "competition" (healthcare in other countries) and apparently lower grade than you want? To me it
636.
by eigenket 5y ago
Would you be surprised to learn that the NHS is cheaper (both in terms of cost per person treated and as a proportion of GDP) than the healthcare systems of France, Germany, Belgium, the Netherlands, Norway, Sweden, Japan? Its also way, way
637.
by eigenket 5y ago
Bullshit. We hear this all the time about stuff happening outside the USA. "oh x can't be happening because its different to my super-narrow experience of one country that I've randomly decided is universal".
638.
by eigenket 5y ago
I agree completely, I would love quantum computers to be in a place where all universities and most companies can do useful stuff with them, but they aren't and these companies which pretend that they are seem like scams.
639.
by eigenket 5y ago
Could you describe why you think its "grandiose" to try to take responsibility for the consequences of your own actions?
640.
by eigenket 5y ago
Yeah I'm a vegan and know a few vegetarians, but still caring about this stuff is still incredibly niche. I was generalising (probably too much) in my comment above.
641.
by eigenket 5y ago
If not you, who else?
642.
by eigenket 5y ago
Moralist principles aren't really my issue here. Its kinda sad that animals suffer but I understand that not many people care about that. My issue is the massive ecological harm done by eating other animals compared to eating plants. C
643.
by eigenket 5y ago
Many people don't want to avoid things that have massive negative externalities but at some point we have to take responsibility for the harm we cause.
644.
by eigenket 5y ago
The two situations aren't really comparable without more information. Clearly the people in A are still eating a craptonne of plants, and also have access to much more land per person than B, since they can afford to have a lot dedicat
645.
by eigenket 5y ago
Everything you've written here applies exactly the same to the Z0. I'm not sure why you insist on claiming some fundamental difference in the case of the W bosons while claiming "The neutral Z0 boson behaves like the photons&
646.
by eigenket 5y ago
Of course, I agree. I hope my comment didn't imply otherwise. Actually I would argue for the wholesale reduction of the category "food animal". Its largely unnecessary, there are very few people (e.g. with unusual medical nee
647.
by eigenket 5y ago
As a human you have a choice about how much of an ecological disaster you, personally, are going to be. That is the privilege and responsibility of sapience. Its worth emphasising that many animals and their eating habits are also ecologica
648.
by eigenket 5y ago
I mean pretty much everything that has ever been written, and will ever be written on hackernews counts as come(ing) from very wealthy people who have time thinking those thoughts. I'm not sure why you wrote that here rather than on so
649.
by eigenket 5y ago
Also the way trophic levels work humans eating plants is way more efficient as a system than humans eating animals that eat the plants. Humans eating animals eating plants is an ecological disaster.
650.
by eigenket 5y ago
As an academic who isn't directly involved in anything close to animal testing (I'm a physicist) I always find it strange that people working in biology have to jump through incredible hoops relating to how the animals they work w
651.
by eigenket 5y ago
The point is that as far as we can tell there isn't a "center" of the universe.
652.
by eigenket 5y ago
That would mean that we are (as in our galaxy is) in a very, very special position because we see all distant galaxies moving away from each other with velocities proportional their distance from us. This is exactly what we would expect if
653.
by eigenket 5y ago
Things can't really "leave", well they can, but the best guess we have is that there is no particularly special place in the universe, everywhere is roughly the same. So if even if all the really speedy stuff from here "
654.
by eigenket 5y ago
The pair production processes like W^+ -> positron + electron neutrino W^- -> muon + muon antineutrino are allowed as are processes like W^+ -> up quark + anti-down quark
655.
by eigenket 5y ago
Sure, but the amount of kinetic energy (in sensible frames of reference) isn't really significant compared to the amount of energy locked up as mass energy of stuff. To close approximation the kinetic energy of something is 1/2 *
656.
by eigenket 5y ago
I'm not really an expert on that so I can't comment definitively, I think the answer is a tentative "yes" but I don't think theres really enough evidence to favour any proposals there.
657.
by eigenket 5y ago
Theres a lot of stuff here that I'm not going to pretend to be expert enough to talk about but some is definitely wrong. I think the main point that is missing is that the standard model is very close to symmetric, so if you have some
658.
by eigenket 5y ago
Two reasons: 1. Because there isn't even close to the amount of radiation around we would see from such incredible amounts of anihlillation 2. Matter/antimatter annihilation is symmetric - it removes the same amount of matter and
659.
by eigenket 5y ago
Yes, but the only ways we know to generate antimatter require a lot of energy. Theoretically it could be an incredibly energy dense "battery" for spaceships or whatever though.
660.
by eigenket 5y ago
The Boer war might count, I'm sure there are other examples > The British response to guerrilla warfare was to set up complex nets of blockhouses, strongpoints, and barbed wire fences, partitioning off the entire conquered territory

More ›