swansont

You don't need extremely high speeds to see it, and you can see the effect no matter who is moving (one implication of relativity is that you can't be sure who is moving and who is at rest). And it all works for more than one type of clock.

No, because there is more weirdness to it that cements relativity as being the correct answer. It matters if you go east or west. None of those forces can explain this, as far as I am aware — they experience similar gravity, magnetism, and whatever. Only their speed and the gravitational potential matter. Atomic clocks are well-shielded against electromagnetic perturbations anyway, and different types of clocks see the same shift.

And if he's more or less unopposed at this point, he can drift toward the center instead of having to worry about the far right, and be better positioned than the democratic nominee (assuming that takes a while to get sorted out), as Hillary and Barack will be fight for support from those farther away from center.

6 MP for a non-SLR is apparently the sweet spot, especially for pocket cameras. Unless you make the sensor physically bigger, or get really good lenses (like you can with an SLR) you don't generally get better pictures. 1/1.8" is a small sensor. http://6mpixel.org/en/

Yep. Gotta wonder why nobody has bothered to plug it in to itself and remove the wall plug, and report on what happens. It still draws power to do that.

In the US at the undergraduate level you generally don't have too much of an emphasis on what type of physics; maybe if you do a research project or something, or take electives, but the curriculum is mostly standardized. Everybody takes general physics, thermo, "modern" physics, advanced mechanics, E&M, quantum mechanics. (and some required math and probably chemistry classes) Specialization pretty much waits for graduate school. And, personally, I'd rank a schools reputation lower than whether the characteristics of the school (e.g. size, university vs college, campus/off-campus life, location) are a good fit. Plenty of decent schools within a few hours of Chicago.

It's the same thing; (negative) exponents of 10. Parts per million per Kelvin.

http://www.webelements.com/webelements/elements/text/Be/heat.html Be coefficient of thermal expansion is 11.3 x 10^-6/K

That's the example mentioned in "Surely You're Joking, Mr. Feynman!" It often went like this: They would explain to me, "You've got an orange, OK? Now you cut the orange into a finite number of pieces, put it back together, and it's as big as the sun. True or false?" "No holes?" "No holes." "Impossible! There ain't no such a thing." "Ha! We got him! Everybody gather around! It's So-and-so's theorem of immeasurable measure!" Just when they think they've got me, I remind them, "But you said an orange! You can't cut the orange peel any thinner than the atoms." "But we have the condition of continuity: We can keep on cutting!" "No, you said an orange, so I assumed that you meant a real orange."

The moon's average albedo is 0.12, so mirrors will make it about 8 times brighter. But that will still wax and wane with the lunar cycles.

No, the way "now" progresses is different, because that's time. What reading you get on a clock for "now" will depend on your reference frame.

I don't think this is an SLR. I haven't seen an SLR that does video (though I haven't really looked very hard)

No, it's 0.5 36 and 72 degrees. I don't get your answer even in radians, so I don't know where you made your mistake.

If I bought one of those I'd quickly run out of things to break. Oooh. Maybe the lab needs one. Gotta brainstorm on this. On a related note: The mother of all telephoto lenses http://www.bhphotovideo.com/c/find/newsLetter/Mother-of-All-L-Lenses.jsp "the ‘official word’ is there are "more than twelve, less than twenty" of them in existence"

I don't think that solves the whole problem — it's not a gap in the coverage, it's a volume of disturbance, so anything inside that volume would be masked. And radar systems are a tad pricey, I'd guess. What makes you think some of us guys don't? The discussion might be read as a bit of an indictment of the reporting, which did not go into much technical detail. The discussion reflects some questions we wished the reporters had asked.

Drop PZ Myers a note http://scienceblogs.com/pharyngula/2008/02/tangled_bank_needs_submissions.php It looks like they got a few more hosts lined up after the above plea.

A fan? But, as Klaynos has already pointed out, once you have artificial gravity these problems go away. The acceleration of "I can't believe it's not gravity™" is guaranteed to be indistinguishable from the real thing by the Einstein equivalence principle.

Yes, we have. Threads will be merged. "The present" isn't something that is measured on a clock.

One of the conjectures was that the original legislation was meant to derail the project off of Nantucket. Which would take pressure off of Kennedy, for example, since as a democrat he's supposed to be in favor of green projects. But not if it's ugly and in his field of view, apparently. This legislation gives some cover to that apparent conundrum.

I think we reached a possible conclusion in this thread (scroll down to post #23), which apparently is based on the axiom of choice

I think the default is that the first comment requires approval and after that you're good to go (unless you link to more than two URLs). But I would have expected an "awaiting moderation" notice to appear; I've seen those in other blogs. FYI for ecoli and anybody doing science, but especially biology/medicine in their blogs: Science web carnival, Tangled bank http://tangledbank.net/ "The subject should be on biology, medicine, or natural history. We will define those categories very broadly, and it's sufficient that you show some passion for the science of the natural world." You just submit a blog entry by email, and they link to it at somebody's blog. You could even host the Tangled bank, and get lots of traffic going to your own blog. I submitted No Sweat and it was added for Tangled Bank #98 There is also the skeptic's circle blog carnival for skepticism blogs. http://blogcarnival.com/bc/cprof_19.html

Have you tried surplus outlets? One of my favorites is American Science & Surplus http://www.sciplus.com/ I did a search on vial; there were a couple of possible candidates. Their whole glassware section: http://www.sciplus.com/category.cfm/subsection/4/category/42 LabX http://www.labx.com/v2/newad.cfm?catID=116 There may be some more candidates here http://amasci.com/surplus/scisupl.html and, of course, ebay

Angry Harry? Sounds like a character that rat created in "Pearls Before Swine" Maybe a cousin to Angry Bob I think he's compensating for something.

The wind is fairly smooth — comparitively good streamlines. The blades disrupt that, giving you more extreme pressure differences over shorter length scales.

Ah, but it appears that it's also the turbulence that they create that contributes to the false readings. But there are wind farms that don't appear to cause problems. And what early-warning systems do we have in Illinois, anyway? Are we worried about an attack coming from Indiana?