Recent content by cremor

Different metals have different electron configurations. Does this mean that different metals have different forms of plasmonic oscillations? Vague question, I'm going for the Y component differences amongst different materials' plasmonic waves. Is it possible that the plasmonic excitation is...

Hello, Plasmons are waves formed by electron density fluctuations on a metallic surface. Basically once excited, they can propagate freely along a suitable metallic-dielectric surface, decaying relatively quickly. I'm interested in the y-axis component of the wave, perpendicular to the...

Well, I believe the price is not everything, and while 10k is obviously pushing it, 1k sure isn't over a few years time. I live in the upper latitudes. There's only a few months of summer season that's noticeable in the grocery store, otherwise the greenery you buy fresh can cost (tomatoes...

I live in the vicinity of lakewater and I've been pondering about making a little (warm) greenhouse in which I could grow some veggies and fruits for food all year round, or at least when sunlight exceeds 12hrs a day (march-september). I don't have a lot of time to manage it to be honest and...

Lyme's is one of those conditions that keeps doctors awake at night and pondering (and end up in self-loathing;). It's easy to exhaust the local lab resource and end up none the wiser. Symptoms are basically anything anywhere, the rash and paresis symptoms being common ones, but on the other...

Your vitals (were) checked out ok? No peaking in blood pressure, ecg changes, saturation ok? Cranial nerve status otherwise normal? No funky skin rashes lately? I understood that it's the first time you've caught this facial paresis symptom? Personally, I'd be a little careful with diabetics...

What do you think is the ultimate way to oversee plant nutrient water composition - say you need to check the nutrient levels from a natural water source for all the essentials a handful of times a year? Full profile: N, P, K, Ca, S, Mg, B, Cl, Mn, Fe, Zn, Cu, Mo, Ni. Preferred method would be...

Thanks. 60s-70s hard-scifi books sound like a blast ;) What do you guys think about http://www.nature.com/ncomms/2015/150427/ncomms7981/abs/ncomms7981.html Could this phenomenon be exploited somehow in a solar sail concept?

Yes. I would assume that their level of optimization is more advanced than my (mis)conception. Heheh. I didn't bring them up because the need to have the physical propellant on board is obvious right off the bat. By the way, there are concepts of solar 'sails', or charged wires spread out into...

So basically, nothing wrong with the electron-momentum idea, except that it is perfectly unfeasible at the moment because of the obvious lack of new mass in form of electrons introduced to the system. Still, it's embedded in QED theory, that energy transform can occur via photon energies shifted...

Point. An obvious fluke it is then, I was under the impression, that in a photovoltaic material the energy transfer results in excitons coupling into some kind of quantum spawning of an electron... Cursed facts!

DC current comes from example solar panels, and is conveyed to the torus with electrical conductors coming in through the dielectric from the sides of the torus (the outer 'rim', if you will). This should be conceivable from the sketch behind the link, the blue lines on the sides (these are...

Moved this question from the quantum physics section to this section, since... Well it fits this section better since electrons apparently do obey conservation of momentum in the 'classical' sense. Why not produce thrust in microgravity with electrons? Plenty of harnessable electricity in...

Electrons have a theoretical rest mass. They can move at varying speeds through space, unlike photons. They ehxhibit quantum-characteristics in their behavior. If an electron collides with, say, an atom, does conservation of momentum apply in the classical sense or does measurable mass (an atom...

They used electro-optic sampling with following setup: Electro-optic sampling of an electric-field waveform by an ultrafast probe pulse, consisting of an EOX (electro-optical crystal), a quarter-wave plate (λ/4), a Wollaston polarizer (WP), and a differential photocurrent detector (DD)...