Engineering

http://www.usatoday.com/money/world/iraq/2003-04-15-kevlar_x.htm-- I was always fascinated by this encouraging factoid, neat it was still cropping up in newsbit even as recent as here...

Henry Markram: Simulating the Brain — The Next Decisive Years [1/3] Henry Markram: Simulating the Brain — The Next Decisive Years [2/3] Henry Markram: Simulating the Brain — The Next Decisive Years [3/3] Henry Markram, Ph.D., Director of the Blue Brain Project at École Polytechnique Fédérale de Lausanne, speaks at the International Supercomputing Conference 2011. Not sure where to post this, but this is a giant engineering project, is it not?

hello everyone I study boundary command in manual lamms but i can not undrestand boundary shrink−wrapped please help me Thanks in advance

Carbon nanotubes are being researched now for their ballistic capabilities. They are said to work extremely well, and be extremely lightweight. I also read that they can be used for muscular replacements because their reaction to electricity. When electricity is applied, is flexes like a muscle. So could these two properties be combined to make suit of performance enhancing armor?

I need help. How can I build an airplane out of paper, cardboard, or construction paper, that is capable of carrying an egg 20 feet at least and land safely without the egg breaking or falling off when we throw them off a 2nd story balcony?

I currently live in Ontario, Canada where we employ 16 nuclear reactors to produce just over half of our electrical needs. It's something I never really think about, until now. With the crisis in Japan it has become a nagging question, are our reactors safer than those in Japan? It turns out here in Ontario, we use one of the most expensive designs in the world, which just happens to be a Canadian design, called a CANDU reactor. Meanwhile in Japan, the reactor in question was one of the designs from the 60's called boiling water reactor. Here is a great link that directly compares them: http://www.enviralment.ca/2011/03/23/nuclear-power-facts-the-differences-betwe…

ATP is basically a naturally rechargeable battery, why not just manufacture that? It completely solves the problem of storing energy and it already makes use of the energy the Earth already recieves. Just let ADP sit out outside during the daytime so that it becomes ATP, then just put it in an car designed to use it little bits at a time to transform the energy released from it into mechanical energy.

Graham Palmer, industrial engineer from Melbourne

i need a massive amount of energy, and i intend for my skaters to give it to me. i'm looking for a way to harness the motion of the skaters across the ice. it should give enough energy to keep the ice cool. (this is a daunting task, and will rely heavily on my ability to, later, design an effective cooling system) any suggestions?

What type of sand is used to cast bronze, brass, steel and aluminium? also what are their shrinkage rates and melting points?

that transmitter must send a audio through it, for a distance of 20meters and the receiver takes and send via speakers ......... how to do it .......... (we need to transmit a audio from a transmitter for about 20meters) ....... plz tell me the specification also ... frequency range ... wht type of modulation required ...........plz .........

I am sure there is a simple explanation (and please keep it simple) but the idea is to replace the gas motor on an electrical generator with a high efficiency electric motor then to repeat in series with 2 generators running on the electricity produced from the first generator then 4 then 8 etc. R.e. a 5 h.p electric motor runs the first generator which has an output high enough to run 2 generators etc etc.It sounds so simple i am sure there is a reason it won't work.

I have to use a small air receiver to build a wheeled vehicle that will be operated by compressed air. The goal is to build the vehicle that can travel in a straight line, towing a standard load (about 3-4 lbs), on one charge of 90 psi in the receiver.The volume of the receiver is 16 cu in. I cant use any air or electric motors. But I can use cylinders. What are some good ideas to accomplish this? I was thinking of using a crank shaft mechanism with the cylinder. How can I make the most out of 90 psi of pressure.

I put this question to structural engineers everywhere: Is the visual evidence recorded during the World Trade Center disaster in New York consistent with a carefully-engineered, controlled demolition using staged thermite detonations? Can that possibility be ruled out? I'm not talking about political plausibility. Just the best judgment that Science Forums.Net engineer participants can bring to bear. Let us keep this discussion logical, rational if you please.

-----> http://www.binscorner.com/pages/m/made-in-china.html

Well reading the news article it is going to be very very vey I say again very very very costly . Reading the news article it saying it is going to be around 2020 before NASA can go in space and about only one space launch a year that is so silly to spend that much money to do only one space launch a year . http://www.theglobeandmail.com/news/world/nasa-unveils-plans-for-mammoth-rocket/article2166652/page1/ Quote But with a price tag that some estimate at $35-billion, it may not fly with Congress.Quote With this so costly it will be like the space shuttle it will get scrapped in 15 or 20 years if you lucky after going in service. Quote The multibi…

Hello you all! Some fabulous rocket engines exist already and use oxygen and kerosene in a staged combustion cycle (drawing), where all liquid oxygen is pumped to a huge pressure, burnt with little kerosene to achieve a reasonable temperature, passes through the turbine that moves the pumps, and burns the rest of the kerosene in a main chamber at high pressure. This most efficient cycle gives for instance the RD-170 its 8MN thrust (record) and 337s vacuum specific impulse (record with first-stage kerosene) and the RD-0124 its 359s specific impulse (record with kerosene). Better: the single slow turbo-pump makes cheap engines, and pressure makes them compact. http://w…

Carbon nanotube spring batteries are a technology waiting for mass nanotube forest growth methods to become consistent enough that there are no major defects lowering their combined tensile strength. They have the potential for an energy density ten times that of the best current rechargeable batteries. Unlike current batteries, and even upcoming batteries like lithium nanowire batteries with the same potential tenfold increase, they can also have flexible and amazing power density, can be cycled infinitely without wearing out, are insensitive to environmental factors like temperature, can store energy indefinitely without leakage, and are probably more environmentally fr…

Antimatter is everything matter is not: the protons are negative, the electrons are positive, and the neutrons are neutral. Physically, there is not much difference between matter and antimatter, the seem to follow the same basic principles as matter. But, although they act alike, when in the presence of one another, they annihalate each other and release an amazing amount of energy. This antimatter energy is not hard to come by. Simply create antimatter in an accelerator, present it to matter, and it creates useable energy. Engineers everywhere are searching for new, efficient ways to get to planet Mars. People have tried combustion, people have tried nuclear. Why no…

How can i increase my laptop's battery? I mean to say should i unplug the charger after it shows 'full battery' or i should continues using it with plugged charger?

Would a nuclear bomb work in a vacuum? How would the concussive force and heat transfer without matter? Does it give off enough radiation to generate the kind of heat that would make it a formidable weapon? I know the sun is basically a nuclear bomb, but I am only talking about tactical size nuclear bombs. Stemming off of this question, what is a concussive force? I always hear of something called a blast radius. What kind of energy is the blast? Is it some kind of force like electromagnetism? What comes out of the explosion that does all the harm?

What technological challenges stand in the way of making molecular assemblers? I mean, what exactly would it entail to generate some sort of nanotechnology that could assemble, from scratch, a car or something? I've heard something about the "fat fingers" and "sticky fingers" problem and something about a debate between Eric Drexler and a professor name Smalley. I'm just wondering if it's possible that we'll, one day, have molecular assemblers. Any thoughts?

Hello Please I want your help for provide me mathematical model of cpu and another of Hard DIsk ,i need understand thermal behavior I am not working in Modeling to use Software ,The Idea that I want Ready Mathematical Model for Processor Whatever And Another for HardDisk Whatever ,I want to understand these Models and Thinking for strategy in cooling,this Work for Getting Master in Degree so I want very Help Please

I'm thinking about making a new type of hot air balloon, but I need to see if I can even make the math/physics work out let alone the engineering. I would be more than happy to collaborate on the effort, may be make some one very rich. How much heat would it take to lift a spherical hot air balloon (r= 81.4) x ft in to the air? How much heat at x altitude (function would be appreciated) would be needed to raise the balloon 200 ft? I'm most concerned with the lift off, as once in flight I have a different source of power than a flame.

how can i made a city bus to identify its position in road and automatically displayed its stop inside the bus .... and via speakers also .......... what r all the methods can i use to make this ???