Coss

For those who may not have heard:

Though you could argue that the energy stored by the spring being compressed, has not been addressed. i.e. an uncompressed spring in an identical jar of acid would produce the same heat and hydrogen etc. We need Mythbusters to test this. My gut feeling is that there would be more heat/hydrogen produced by the compressed spring because the bonds holding the metal together would be under stress. A bit like cutting a rubber band at rest, or when stretched, bigger reaction in the latter...

Acid dissolving metal is an Endothermic reaction, thereto it produces heat, or energy. Also breaking chemical bonds producing hydrogen and a salt which takes energy as Kong has said. Is right answer?

Well perhaps I should rephrase the wording, rather than 'getting wet' I should have said - how much rain hits the motorcyclist? Initial thoughts of mine are that: by travelling twice as fast, there should be half as much rain falling on the motorcyclist from above. But he/she is also exposing him/herself to twice as many "vertical panes" of rain, per second, albeit for half the time. So I reckon same rain falling on the motorcyclist from above. But am I right?

The fat ones think by emulating thin ones, some bloke somewhere will want to bang them, why? I would prefer a great happy Flossie, a la the wife from "Daring Buds of May" than a fat girl crammed into a thin girls clothes any day.

OK then what about this? You are riding on a motor bike in the rain at 20 km/h. The rain is falling in constant sized drops and at a steady rate of 1,000 drops per horizontal square metre, per second. If you increase your speed to say 40km/h, over a set distance, say 10 km, will you get more or less wet?

"but the mass balance remains the same." There y'are then.

You underestimate the power of vanity, to sport a shortened belt would indicate a thicker waist, ideally they'd want a long as possible belt, to accentuate the tiny waist...

Ahh I see, memories of afterschool ...

neither, it's order

Ahh ha, not such a stupid question though. I reckon: if we presume that unused space or memory, is not written with only 1s or only 0s every time it is unused, then the unused memory is in a state of essentially roughly equivalent numbers of 1s and 0s. I assume that for used memory, i.e. an app and it's data, over millions of lines of code, that the net view of such, would be roughly equivalent amounts of 1s and 0s. So the question of which weighs more, data written to memory, or unused memory, is moot. Ideally, they will weigh the same, more or less. Bust, you are correct, weight is related to mass and information does not have mass, but data written to memory involves mass. The order of the 1s and 0s does not, ergo information has no mass or weight. Not that judgments handed down, are not weighty, your honour...

Did you previously post here? Are you from a Nordic country?

Essential Dalek Fashion

I think I know the answer, but I look forward to replies with reasoning. (Kong this means you) Read the article first... Does an ipad full of apps weigh more? HANNAH FRANCIS Last updated 09:31, October 10 2014 HEAVY IPAD: It's not noticeable to humans, but scientists say data adds a teensy amount of weight to your gadget. Four months ago, Professor Richard Sinnott received a curious letter in the mail. It contained a $5 note and a plea from an elderly man, asking the University of Melbourne computer scientist to explain how the Kindle e-reader he'd been given for Christmas could possibly store dozens of literary tomes without getting any heavier. "Although my Kindle is a wonderful present, there is one thing that is really puzzling me," the 75-year-old wrote. How can an electronic device hold so much information without getting any heavier? Richard Sinnott "I now have more than 30 books and many of these contain several hundred pages ... Despite this, the Kindle seems to be no heavier than when it had no books. Surely I must soon be getting to the stage when the Kindle will become quite heavy?" Many readers would assume the query was a joke; in fact that's exactly what Professor Sinnott wondered. He kindly returned the man's money and replied that he needn't worry about overloading his Christmas gift with reading material, unless he planned on clocking up tens of thousands of books – in which case the data storage capacity may eventually run out. But do all the apps and files stored on our devices, such as our iPads, actually weigh something after all? That's what University of California professor John Kubiatowicz argued in comments in a 2011 New York Times article, which has recently been doing the rounds again after CultofMac, an Apple news website, published a post entitled "An iPad filled with apps weighs more than one with nothing installed". We put that claim to several Australian academics, from physicists to electronic engineers, with mixed responses. One said the theory was "baloney"; another labelled it an "urban myth". All said that if it were true, the increase would be so infinitesimal as to be immeasurable – more or less what Professor Kubiatowicz argued. It all rests on Einstein's theory of relativity, which converts energy into mass using the formula E=mc². Professor Sinnott said storing data using flash memory – commonly built into tablets, smartphones and e-readers, including the Kindle – involved holding electrons in a certain position to record the binary code that a computer could read (i.e. 1s and 0s). Holding that position required more energy, therefore mass, according to the formula. Professor Kubiatowicz's conservative estimate of just how much energy that would be was 10–15 joules per bit, converting to 10–18 grams for a 4GB Kindle. That's an attogram; and for readers who don't know what those negative numbers mean, it can also be written as 0.000000000000000001g. In other words, nothing a human being can notice, let alone measure. But while Professor Sinnott supports the Berkeley computer scientist's theory, other experts are doubtful. Macquarie University's Mike Heimlich said the charge of an electron – amounting to "one billionth of a billionth of a billionth of a kilogram" – may in theory add weight in one part of a device, but "someplace else" there would need to be a voltage deficit. As Adelaide University electrical engineer Michael Liebelt put it: "When you store stuff on a USB drive or Kindle, or anything like that, all you're doing is moving electrons around." Professor Liebelt added that while Einstein's formula was valid, "in practical terms you never convert between the two". Whether the device used flash memory or any other type of storage made no difference, he said. Wollongong University's Roger Lewis agreed with Professor Liebelt on the Einstein factor. "That tells you how to convert between energy and mass, but having more energy doesn't necessarily mean having more or less mass," Professor Lewis said. He said the theory that electrons in different energy states could have more or less weight was "far-fetched" but, in principle, "possible". Whatever side of the weight-watchers camp you're on, it helps to put the debate into perspective. Curtin University's Cesar Ortega-Sanchez said the weight difference in question was about "as small as the diameter of a red blood cell compared with the distance from Earth to Jupiter". "It does exist," Dr Ortega-Sanchez said, "but it is too minuscule to be of any relevance or practical use." Except, of course, to make a good headline. - Fairfax Media Australia

North Korea's interpretation of invincibility...

All Hail Dennis Rodman

At least Kim has groupies

Note the trackball mouse on the desk and the (UHF?) aerial upper right. Aerial?

It's worth noting that the combined computing power of all the computer consoles shown is equivalent to an iPhone 3Gs

I enjoy north Korea threads, here's one I may have posted before.

I've no photos, but I've had two like this sharing the bathroom wall in the Glorious People's Republic, with the usual geckos, eating the nasty mosquitos . These spiders can move, I once saw one shoot across the room and out the door, so fas,t I could barely turn my head fast enough to watch it go.

Forgive my ignorance, paperclip? this is a reference to?