-
"Falling levels of aerosol pollution could make it much harder to curb the total amount of CO2 in the atmosphere. That is the conclusion of climate researchers in the UK and Switzerland, who have found that pollution in the form of aerosol particles gives a dramatic boost to plantsâ photosynthesis. "
-
"Could Global Warming Raise the Temperature from 800 to 900 by 2050?"
-
"There is a law of nature called the Pauli exclusion principle that says no two fermions can share the same state. It's just not possible. Toss a bunch of electrons into a box (electrons are fermions) and only one of them* can occupy the lowest energy state no matter how much you refrigerate the box. Bosons have no such restriction. Pull enough energy out of the box and you can pack as many bosons into that lowest quantum state (also called the ground state) as you want."
- Log in to post comments
More like this
It's been a while since we've worked on some slightly more heavy-duty physics, so I'm going to spend the next couple of days going through the basics of the theory of Bose-Einstein condensation. Let me set the stage:
Particles can be divided into two classes based on a quantum mechanical property…
Zoom-Whirl Orbits in Black Hole Binaries
Title of the week from PRL.
(tags: science physics articles theory gravity)
Phase-Slip Interferometry for Precision Force Measurements
"We demonstrate a novel atom interferometric force sensor based on phase slips in the dynamic evolution of a squeezed-…
In the previous installments, I talked about identical particles and symmetry, and what that means for fermions. Given that there's only one other type of particle in the world, that sort of means that I need to explain what symmetry means in the case of bosons.
When I explain this to the first-…
Hamlet - The Text Adventure
"It's so unfair! You're in trouble again, just because you called your uncle - or rather, your new stepfather, Claudius - a usurping git."
(tags: games internet literature silly)
YouTube - The Killers - Don't Shoot Me Santa
Silly spoof Christmas song video, featuring…