mattheww

9 ms·

31.
by mattheww 14y ago
The fact that you think it's being ruled out makes it testable. I'm not sure how many people would agree with your assessment, however. There's so much SUSY parameter space that's still not accessible that it's pretty early to declare the n
32.
by mattheww 14y ago
Both Witten and Maldacena have made contributions that are being tested today. I'm not familiar with Sen's or Seiberg's work, but just from the summary, I can tell you that Sen's work is probably in the same boat.
33.
by mattheww 14y ago
Maybe I'm misreading your first sentence, but both relativity and quantum mechanics did require a generation of physicists to retire before their acceptance reached consensus. Even some of the proponents of quantum mechanics questioned its
34.
by mattheww 14y ago
Actually, there are some ideas about creating configurations in which the Casimir force is reversed (ie the two objects repel). There are people trying to use both configurations to improve the efficiency of micro-mechanical devices.
35.
by mattheww 14y ago
The two main rationales are that systematic uncertainties are historically under-estimated and that we are looking in many channels (more than 1000), so it would not be too hard to find a 3 or 4 sigma anomaly. The second part is the so-call
36.
by mattheww 14y ago
CMS and ATLAS will do an official combination. For example, it was done for 2011: http://arxiv.org/abs/1202.1488 .
37.
by mattheww 14y ago
At the point you made the comment, the full number has not yet been shown. That's only the combined number for Higgs to gamma-gamma for 2011 and 2012 (so far).
38.
by mattheww 14y ago
FYI, quantum teleportation does not transmit information faster than light. You'll notice from the explanation in your link that some information still needs to be transmitted through a classical channel (ie at light speed).
39.
by mattheww 15y ago
Actually, it's you who is doing the over interpreting. The Heisenberg uncertainty principle is a physical constraint that wave functions obey. If you define a state with an infinitely precise location, then the range of momentums is infinit
40.
by mattheww 15y ago
Honestly, nobody knows what kind of potential applications could come from these measurements. But by the same token, nobody knew that Fermi's splitting of the atom would lead to nuclear power (and weapons), measurement of Hydrogen line spl
41.
by mattheww 15y ago
No, measurements at the LHC really are, and will, progress our understanding. Let me give the measurement of the Higgs as an example. There is very strong evidence that a Higgs boson should exist. An observation of the Higgs boson would pro
42.
by mattheww 15y ago
Within the particle physics community, that bump is widely believed to be the result of a poorly understood background subtraction. None of the other experiments (D0, CMS, ATLAS) have been able to reproduce that result.
43.
by mattheww 15y ago
Let's just say that regardless of whether I have any actual knowledge about this specific situation, I know that what I outlined is what happens from other, similar situations where I definitely have actual knowledge. Let's also say that if
44.
by mattheww 15y ago
There are several things to keep in mind when reading things like this piece: 1) Nobody with any actual knowledge about the analysis spoke with anyone who then blogged about it. These people know better. What actually happened was that peop
45.
by mattheww 15y ago
Asking for the source code of the OPERA analysis is similar in scope to asking for the source code to gmail. Unless you made a very specific request and explained how you would be qualified to review it, I doubt they are taking you very ser
46.
by mattheww 15y ago
I'm told by a family friend who was Jobs' neighbor that his license plates were stolen regularly by his fans. This was probably how he chose to solve that problem.
47.
by mattheww 15y ago
No, this paper claims that introducing gravity as an emergent phenomenon in Verlinde's framework breaks quantum mechanics. He shows that Verlinde's proposal changes the Hamiltonian. However, the solutions to the standard Schrodinger equatio
48.
by mattheww 15y ago
It's unclear whether it's possible to reach a breakeven point.
49.
Using Cloud Computing to Tackle the Proton Spin Puzzle(nersc.gov)
1 points by mattheww 15y ago|0 comments
50.
by mattheww 15y ago
Close. It is widely assumed that the dark matter is, on average, stationary with respect to the Milky Way. The amplitude of the modulation is a lot smaller in this case than what you described.
51.
by mattheww 15y ago
I'm not sure what sophomore-level was for you, but the next step or refresher would be Quantum Mechanics. Griffiths is the standard introductory text, though I'm partial to Liboff. You'll want to work through a higher level textbook of QM a
52.
by mattheww 16y ago
Actually, Ferris' high school, Glenbrook North High School [1], is scheduled to get out on June 9th this year [2]. School calendars usually follow similar schedules over many years, so it's reasonable to assume that it had a similar schedul
53.
by mattheww 16y ago
I'm referring here to the significance estimates of section 3. It's immediately suspicious that the authors introduce a new type of "test" for whatever spectra are being measured. When that happens, the authors need to rigorously demonstrat
54.
by mattheww 16y ago
Actually the paper discussed in OP is a preprint at: http://arxiv.org/abs/1006.4848 It uses an extremely suspicious technique to test the significance of their finding. I doubt this paper will pass review without substantial changes. edit
55.
by mattheww 16y ago
you try fixing a sodium-iodide scintillation detector without a manual More like, you try finding a sodium-iodide scintillation detector that HAS a manual! Another great story, thanks for posting.
56.
by mattheww 16y ago
I'll answer in reverse order. Beaming power back is certainly one application, but not the one I had in mind. I was thinking these would be used to power things in space. The vast majority of electrical power used by stuff like satellites a
57.
by mattheww 16y ago
I don't think so. If you count collecting samples and returning to Earth with them, there's Apollo (from the moon) and possibly Hayabusa (from an asteroid: http://en.wikipedia.org/wiki/Hayabusa ).
58.
by mattheww 16y ago
I want to start a company that builds solar panels in space. Roadblocks (the ones I think are the biggest anyway): Supply Chain. Probably going to first need a way to or supplier who can mine and process materials from somewhere other than
59.
by mattheww 16y ago
It's definitely not a drag! If you're anything like I was when I started, it will take a lot of work to get the basic moves right. There are reasons for how each technique is performed, so it's important to understand them. Your form notice
60.
by mattheww 16y ago
You're right, but what other implementations have proven they can actually produce a closed time-like curve?

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