Other Sciences

http://en.wikipedia.org/wiki/Huolongjing This is a very interesting article, definitely worth the read. This 14th century Chinese book outlines the use of shrapnel bombs, poisonous gunpowder solutions, firearms, flamethrowers, bombards, cannons, exploding cannonballs, land mines, naval mines, rocket launchers, aerodynamic winged rockets, and multistage rockets with a booster rocket to launch the missile up before igniting a swarm of smaller rockets. INTRO The Huolongjing (Wade-Giles: Huo Lung Ching; Simplified Chinese: 火龙神器阵法; English: Fire Drake Manual) is a 14th century military treatise that was compiled and edited by Jiao Yu and Liu Ji of the early Ming…

Hey... So I came up with 2 ideas, no one listens to me in the real world (specifically parents) I decided to go here, so my first idea is about babies in space, I'm talking in a way that makes this topic suitable for all ages So.. I was thinking of babies born on the moon, spaceships will be discussed later Ok idk how the babies get in the mom's tummy but I'm sure that is not gonna be a problem. My machine mostly focuses on the growth and power of the baby while it is in the mom's tummy and I want to make a spinning machine that mimics earth's gravity My idea is about how we can visit it to meet the moms in it, it will have nurses and lady doctors in it an…

I just watched this movie yesterday in its entirety for the first time in a very long while. I enjoyed very much, even though my brother thought it was monotonous, boring, and pointless. What do you all think about the movie?

As scary as my title sounds, my idea is to create a tag for a person, by having this tag you can quickly identify who this person is and where he is going. In other words you get the identify information of the person, what the person wants to display, and his location. By having this tag, in a work environment, you can quickly track where everyone is at any given time, or you can identify a stranger having this tag that makes the person more approachable. You can also avoid this person if he is some troubled ex. Well the problem for this would involve privacy, but again this tag is placed voluntarily by the user. It could have some sort of social or work benefits, when y…

http://www.popularmechanics.com/automotive/new_cars/4237853.html?series=19 The question I ask is what kinds of new dangers do we expect with these ultra-small, ultra-light cars that are coming out now? The side-door impact support on this car more than meets the required standards, however, the size of the car does not absorb the impact like today's car would and inevitably it will get tossed across the street or into other lanes of traffic more easily and the people inside will be subjected to more jarring than would be normal. I'm not downing efficiency, but this looks fairly dangerous until everybody is driving these.

Hi All, I was wondering if anyone had any feedback on an idea I have been playing with i.e. is it possible or completely impossible due to the laws of physics? Has it been done before (I can't find anywhere)? Is it completely unachievable? If this is a rubbish idea please feel free to say. The idea revolves around being able to focus a small beam of light onto a given xyz co-ordinate in the atmosphere. As can be seen from playing with magnifying glasses and the sun as a child, its possible to focus light rays onto a point to such a degree of accuracy that the point becomes small enough to burn. If one was to take a light source (LED or something) and control a len…

I've been looking at iron filing pictures all day, trying to figure out what is pushing/pulling the magnets around, how it works, how photons are supposed to be involved. It's hard to envisage the shape from those iron filings. Anyone know of 3D pictures of the fields? Or a 3D generator of fields. Pincho.

Has anyone been getting 404 or "Forbidden" errors recently? It's time to mail my host a horse head (faf's idea).

so.. do you guys have any theories?

Around the world, the threat of a dying planet has spurred the development of many new “green” technologies. From the production of biogas to the abundance of solar, wind, and water renewable energy, innnovators from all around the world have shifted their focus to the development of technologies capable of reducing the carbon footprint of the human race. Politicians continue to preach green, creating countless new legislation in favor of saving our planet. The development of biofuels and biogas is growing exponentially. However, while most people may think of green technology as renewable energy, there is now an abundance of unique, creative technologies around th…

Hi everyone, i made a video about 5 Times Scientists were wrong. I hope you learned something from this, and if i were wrong on some of the issues then please tell me in the comment section video link removed per rules

A hypothesis that the Federal Reserve can set interest rates based on the movements of the planet Mars. Here I have data going back to 1896 that shows how the Dow Jones performed when Mars was within 30 degrees of the lunar node. (- from appendix of Ares Le Mandat 4th ed)

If this article is correct, it appears that electrical cells capable of electroplating silver on to other metals have been around for 2500 years. I am astonished that this discovery is not commonplace knowledge. I regarded the ancient Egyptians as farmers, fisherman and superb builders, but not as scientists who beat Alessandro Volta to the electrical cell Merged post follows: Consecutive posts mergedSo sorry guys - here is the link: http://www.world-mysteries.com/sar_11.htm

The story before the story The earliest fossils of hominids date from, more or less, 4 million years. These hominids spread across the globe. With the genetic variation and influence of environment various species appeared. Which explains the Neanderthal man, that is human like us, our cousin in evolution. Some groups isolated themselves like what happened in Australia. These hominids were to Europe, Middle East, Asia and Oceania where Lemuria existed that was flooded by the Oceans, and to Atlantis that remained, according to Plato, after the Strait of Gibraltar. After homo sapiens, more or less there are 20,000 years, appeared on Earth the white races (Arians), Egy…

Hi I'm trying to get some feedback for this new terran computational calendar that I've implemented: It utitlizes zero-based numbering Contains 13 identical months of 28 days each Contains an additional short Month Zero containing only new year's day and a single leap year day every four years (with the exception of every 128 years) Synchronized with the northern winter solstice Starts 10 days before the UNIX Epoch "Its "terran" inception and unit durations reflect the human biological clock and align with astronomical cycles and epochs. Its "computational" notation, start date, and algorithm are tailored towards the mathematicians & scientists tasked with calend…

Science uses one basis of judgment--information deemed as evidence by a single method, science (self). This proposition is quite dangerous. Science essentially puts all of your eggs in one basket.

i think silver and aluminum can reflect electronic wave. but is it possible to make a device reflecting electronic wave or micro wave? it must be big range.

Why don't world govs decide to move all of their nuclear waste in Antarctica?

My friend and I were talking about some science-y things, and some of the things he said really intrigued me about questions with possibly blatantly obvious answers, but either way, I'm going to ask just to make sure. First of all, is it possible for light to manifest a physical form? We can see light, but is it possible to touch it, and warp it to a shape or any other physical form? Second, can huge amounts of sound create black holes? My friend says massive, and I mean massive, amounts of loud sound can create black holes, which to me sounds insanely stupid. Adding on to this question, can you be sucked in to a black hole if you're behind it? Black holes suck in every…

Say the Earth is on it's way for a magnetic reversal... Once it does, how weak will the magnetic field be? How long will it take for the reversal to be complete? During the middle of the reversal, would the magnetic poles spaz out? How would it affect life on Earth? Would it change the climate? How? Couldn't we be more prone to magnetic storms? I'm sorry for spelling errors, I suck at spelling. :x

I remember watching a programme, where they stated that a fly experiences huge dilation of time. For example if you moved your hand slowly towards a fly it would percieve it as motionless. How is this possible ? As humans, events can seem shorter...if we're enjoying ourselves, or longer...waiting for a bus for instance. We certainly don't see events visibly slow down. Is this just down to the speed visual information is being relayed to the fly, like high speed film ? I keep on wondering if this has any implications towards relativity...if events are slower to one life form, how do they fit into the frame work of another...obviously they do, but it's kind of bug…

when you touch hot glass why does it seem more slippery? What do you think?

after constantly filling up one of my daughters balloons about once every 2 weeks, I got to thinking about these Helium atoms and where they go. obviously small enough to escape the balloon and probably the bedroon ceiling etc... so they rise up through the air like a ping pong ball under water does. they`re heavier than a vacuum (like that in space) so they would stop there after reaching a pressure equilibrium. so do we have a thin Helium Layer around the Earth?

Let's say that I have an imaginary planet with the same mass as earth, and it's completely smooth. No indentations, no obtrusions, nothing, just a large rocky ball. And now let's say around this planet, for some reason I build a huge ring around it, and once I finish building it, I remove the supports that hold it up. The ring is equidistant at every point from the planet at exactly 1 kilometer above the surface. What does the ring do, then? Collapse, remain stable, start to turn, or just stay still?

Hello. Received a present, a 20 lb solder wire roll of 89.5% Sn; 10.0% Sb; and 0.5% Cu. Does anyone know what is intended to solder ? Radiators... electrical... plumbing... ?