I’m an experimentalists through and through, and have always known better than to attempt real theory. On two occasions, though, I’ve been forced to do a little bit of computer simulation work in order to interpret my results. One of these was for the time-resolved collisions experiment, and worked out well. The other was when… Continue reading Less Is Also Difficult
Category: Experiment
Now Surviving Elsewhere
Like Sauron creeping into Dol Guldur, Quantum Diaries has returned to darken the blogosphere once more, driving Tommaso Dorigo before it— Oh, wait. More good science blogs is a good thing, not a creeping menace. Even if they are particle physicists. Anyway, in a move that is unrelated to the return of Quantum Diaries, and,… Continue reading Now Surviving Elsewhere
I Do Not Think That Means What You Think It Means
A couple of physics stories in the last few days have caught my attention for reasons that can be lumped together under the Vizzini Effect– that is, they say things that involve unconventional uses of common words. Take, for example, the Physics World story Physicists distinguish between the indistinguishable, which starts off: Spurred on by… Continue reading I Do Not Think That Means What You Think It Means
Testing the Fine Structure Constant: The More Things Change, the More They Don’t
Via the arxiv Blog, a review article has been posted by the Haensch group with the title“Testing the Stability of the Fine Structure Constant in the Laboratory.” The fine structure constant, usually referred to by the symbol α is a ratio of fundamental constants– the electron charge squared divded by Planck’s Contant times the speed… Continue reading Testing the Fine Structure Constant: The More Things Change, the More They Don’t
Transporting Ions Through an X-Junction: Quantum Computing Inches Closer
Physics World has a nice news article about a new experimental development in quantum computing, based on a forthcoming paper from the Wineland group at NIST in Boulder. I’d write this up for ResearchBlogging, but it’s still just on the arxiv, and I don’t think they’ve started accepting arxiv papers yet. The Physics World piece… Continue reading Transporting Ions Through an X-Junction: Quantum Computing Inches Closer
Sleepy Baby Blogging 040309
Shhhh! Stop reading so loudly! You’ll wake the baby: It’s been a while since we had a sleeping baby picture of the week, and conveniently enough, SteelyKid slept late this morning. So there you go.
Cold Fusion Still Generating Heat
Steve calls me out for not commenting on new stories about “cold fusion”: Becky and I have been having much more regular access to the internet since the power was fixed. We check e-mail just about everyday and can even skim yahoo news. Or Professor Orzel’s blog. I heard on BBC radio yesterday that there… Continue reading Cold Fusion Still Generating Heat
The Higgs Boson: Still Not Here
I was busy with other stuff when this hit the blogs, but I did want to at least comment in passing on Fermilab’s announcement that it still hasn’t found the Higgs Boson. Detailed commentary is available from Tommaso Dorigo and John Conway. If you’re not a physicist, or even just not a particle physicist, it… Continue reading The Higgs Boson: Still Not Here
Atoms as Little Solar Systems
Most people’s first exposure to the ideas of modern atomic physics comes through the Bohr model of hydrogen, which treats the atom as something like a little solar system, with the positively charged nucleus as the sun, and negatively charged electrons orbiting in well-defined circular orbits. It’s a very compelling picture, and works well for… Continue reading Atoms as Little Solar Systems
How Not to Write a Press Release
EurekAlert had a press release yesterday titled Quantum paradox directly observed — a milestone in quantum mechanics, which sounds like it ought to be great. The actual release, though…. For one thing, the description of the actual experiment is so vague as to be completely useless. It’s not easy to quote without copying the whole… Continue reading How Not to Write a Press Release