ewmon

What about a substance such as aerogel, but one that's produced in a vacuum or somehow evacuated after manufacture, and hermetically sealed within a skin? Wikipedia says: One m³ would have a buoyancy of 200 g, equaling 40,000 kg for something the size of the Hindenburg.

An American study by Straus and Gelles showed that women are as violent as men in frequency and severity, even according to the women themselves. Women have a greater tendency to use weapons, most often knives, as "force equalizers". Unlike women, most men don't report the abuse, and when they do, they are mostly ignored.

I thought it was his Canadian neighbors who shouted "You reek, eh!" as he ran down the street because he hadn't actually bathed yet.

I see naughty words as a subset of useless, distracting and inflammatory language in general, and especially so on a science forum. The mention of "the jerks who designed those lousy Fukushima reactors" doesn't really say anything. Same thing, especially so, with naughty words.

I found two patterns that eliminate answers B, D, E, G and H. I think the answer is F, but I need more time to confirm it.

Yeah, fractions predate decimal places.

Uhhh..... Was that a "good" argh or a "bad" argh?

—Does Multitasking Lead To A More Productive Brain?

Try looking at it this way. Using regular subtraction, 0.99999..... ad infinitum = 1 – 0.00000..... ad infitinum .....1 The ad infinitum on the right side of the equation means you never get the opportunity to place the one because the zeros go on forever. Therefore, 0.99999..... ad infinitum = 1

Sounds like homework.

Overall, I would guess that, being Latin (or Latinized) words/abbreviations, binomial nomenclatures are underlined/italicized to denote them as foreign words. It partly assures the reader that a typographical error in English has not occurred. Foreign words fully adopted into English are no longer italicized.

Just an interesting note to expand on what SMF and CharonY have said. The procedure for marking corrections while proofreading a document includes underlining text and adding notations in the margin on what to do with that text (bold, italicize, etc). So, to italicize, one would underline the text to be italicized and then write "ital" in the margin beside the line. I'm guessing that the advent of the typewriter left the typist without italic letters to type, so they would use underlining in lieu of using italics (which probably continued for a few generations before word processing computer apps). And, as CharonY said, it is mostly used when writing by hand (now that it's easy to generate italic text with word processors).

Rainbows in clouds due to the moisture in them. I've seen them without an earthquake. Seems like a mere coincidence. Has no one else here seen rainbows in clouds?

I agree with Michel. Let's remember that Fukushima Daiichi was Level 7 weeks ago, and they failed to tell us. Does Japan continue to withhold "uncomfortable" facts? Besides, why close *any* thread, especially one concerning an ongoing global threat?

We're almost talking apples and oranges here. The British "rights" are what its ancient government granted to the people (ie, a list of "do's" for the people). The American "rights" arose from what naturally originates with the people that the government cannot touch (ie, a list of "don'ts" for the government). When one grows up in an environment that allows near perfect free speech, one either learns not to fly off the handle, or gets into a lot of trouble. Opposites also exist between Britain and America regarding defamation. British Libel Law – Suppression of Truth in the US and UK?

Inigo, I almost asked this last year. With both chambers igniting at the same time, both compression fronts would meeting at the T joint. What amount of shock/overpressure did you expect to see there, and what was actually measured? If the gun ruptures, I could see it rupturing at the T joint. A Y joint seems safer.

Use difference tables in Excel.

MSDS on Tetrahydrozoline HCl: So, we're talking about an LD50 (50% probability of Dose being Lethal) of: 8-lb baby: 2½ to 5½ liters of Visine (0.05% API) This is between 85 and 193 one-fluid ounce bottles. 160-lb adult: 50 to 114 liters of Visine (0.05% API) This is between 1,694 and 3,853 one-fluid ounce bottles. Victom might be supersensitive to Visine, but the above numbers makes me think it was something much different ... like Trazodone.

Ditto. As an engineer, when CFL's first hit the market at the introductory offer of 25 or 50¢ (I forget which), I bought plenty. In the hot weather, who wants a 100-Watt bulb pumping out 90 Watts of heat? The only drawback I see is that CFLs don't work well in the cold (outdoor lamps, frigs, etc), but they'll probably invent a "cold" version of CFL. As for the mercury in CFLs, mercury is in every fluorescent lamp ... the circular ones in mom's kitchen over the food and the straight 4-footers in the kid's rec room downstairs (where they throw around balls and other stuff). :eek: It's even got to the point where the average person couldn't even say "safety belt", and over the years, the name became "seatbelt". Now everyone says it. I'll bet even the owner's manual calls them "seatbelts". If folks could have managed another syllable, they wouldn't need to be reminded to put on their "safety belts". Anyone remember the end of leaded gas and the extra 5¢ a gallon for the alternative anti-knock chemical? Anyone still fuming over that? No.

Imatfaal, thanks, I must have forgotten to take my anti-stupid pill: Okay, so it must be that about 71.43% of moms have more than one kid, because 28% * 71.43% = 20%, and 28.57% of moms have one kid. Thanks for your patience.

With all due respect, what do you mean that you "want to do engineering" if you don't know what engineering is? Maybe some examples from you would demonstrate what your intentions.

Nawh ... it just feels that way (unless someone did what Charles Boyer did after when his wife died).

Insolation is a key word here. Notice the "sol" in the word; this term refers to the solar energy that reaches the surface of the earth (ie, crops, oceans, homes, etc). Some of the same gases that cause the "greenhouse effect" also reduce insolation.

I think the radiant and gravitational energy of the sun working through the inverse-square law results in some of the characteristics that seem related to the plants' distance from the sun. Instead of a timeline, I think we're seeing the function of influence.

Imatfaal, I'm still not seeing a difference. One in five (ie, ~20% of) American moms — have kids who have different birth fathers [28% of] moms with two or more kids — have kids with at least two different men The situations are identical (that is, plural kids and plural fathers), and only the percentage is different.