Spin
esiegel | March 15, 2013"If you're a reporter, the easiest thing in the world is to get a story. The hardest thing is to verify. The old sins were about getting something wrong, that was a cardinal sin. The new sin is to be boring." -David Halberstam
It was only a few months ago that both collaborations at the Large Hadron Collider in CERN -- CMS and ATLAS -- announced the discovery of a new particle at about 125-126 GeV of energy: something that looked an awful lot like what the Standard Model predicted the Higgs Boson should be.
Image credit: the CMS detector at CERN, 2009.
This was the result of decades of…
drorzel | July 26, 2010The subject of the "spin" of the electron comes up again and again, so as pointed out in a comment, I really ought to do a post explaining what it is and how it works. As a bonus, this gives me the opportunity to do the dorkiest thing anyone has ever done with a cute-toddler video, namely this one:
(That's an early version of SteelyKid's new favorite game. I'll put a clip of the final version of the game at the end of this post.)
So, electron spin. Electrons, and all other fundamental particles, have a property known as "spin." This is an intrinsic angular momentum associated with the…
esiegel | January 24, 2010There are plenty of examples in the music world where a cover of a song is strikingly different from the original and still interesting. Take the song You Spin Me Round, which cracked the top 5 all over Europe and North America when Dead or Alive released it. (Click for video.) 15 years later, Dope released a cover of the song in a completely different style, with an incredibly different feel. Take a listen:
It's a pretty good cover. It's interesting to listen to, it's decidedly different from the original, and it's still instantly recognizable. But by time I get to the end of the…
esiegel | May 16, 2008This has been all over my inbox since the press release came out yesterday; it's been on slashdot (thanks Brian), it's been at space.com, and there's a mediocre writeup on Universe Today. What's the big news? Black Holes don't destroy information after all!
What is this whole information thing, anyway? Take a look at all the normal stuff in the Universe: photons, protons, neutrons, and electrons, for example. They have lots of different properties each. They move around one another, they get bound and unbound from one another, they exert forces on one another, etc. They're aware of one…
esiegel | May 13, 2008There is a very techincal paper this morning by Martin Bojowald that asks the question, How Quantum Is The Big Bang? Let me break it down for you.
If you took a look at empty space and zoomed in on it, looking at spaces so small that they made a proton look like a basketball, you'd find that space wasn't so empty after all, but was filled with stuff like this:
What are these? They're little pairs of matter particles and anti-matter particles. They spontaneously get created, live for a brief fraction of a second, and then run into each other and disappear. That's what happens on very small…
esiegel | February 8, 2008To follow up on the faster than light post here, let's ask another question:
If you can make a way of transferring information that doesn't involve matter, is that information limited by the speed of light?
First off, let's go over what information is, and then we'll talk about how transferring information without matter is even possible. Information is anything that's organized in a meaningful manner. Take a look at the following three sentences:
This sentence contains some information.
Tihs scnnteee cainntos smoe imnfriatoon.
Not a imfro nimsoe mnoisn ctrnsnet sihto.
Each of the three…
ianhart | August 14, 2007In her Aug. 12 column, "Paralyzing fog of certainty on climate" Debra Saunders asserts many things, including that money flows to climate scientists as well as climate skeptics. No argument there. However, she neglects to distinguish between the quality of research this money funds, asking, "Why not posit that there is such a thing as honest disagreement on the science?" The problem is, much of the disagreement is dishonest, hiding under a veil of science.
Multinational fossil fuel corporations have billions of dollars riding on U.S. inaction on climate change. These corporations are behind…
integrityofscience | April 25, 2007John Marburger, director of the Office of Science and Technology Policy, and James Connaughton, chairman of the Council on Environmental Quality are still peddling their Feb. 7 Open Letter on the President's Position on Climate Change, a letter that plays fast-and-loose with the historical record. Despite having portions debunked cherry-picking data and misquoting President Bush, it showed up yesterday as an op-ed in the Leading the News section of The Hill under the headline President Bush consistently has addressed climate change issues.
First off, note the difference between "consistently…
integrityofscience | January 23, 2007Spinmeister Frank Luntz spoke with Salon recently, touching on a number of Washington buzz topics. If you're not familiar with him, check out the infamous Luntz memo, and you will understand why he is a chief enemy of transparent policy and scientific debate. At the end of the print interview, they touch on global warming:
(Salon) Bush plans to outline a global warming policy in his State of the Union address this week. The GOP spent years spreading doubt that there was consensus in the scientific community about global warming, but in recent years Bush has changed his position. So,…