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A new prototype robot will mimic the shape-shifting swifts, the most agile flying birds in the world and will infiltrate their flocks to spy on them with miniature cameras. There is hope that they will go unnoticed by real birds.Swifts (Apus apus) are some of the most efficient birds when it comes to active flying (... |
9 July 2007
02:49 GMT |
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This weekend, Boeing, the largest global aircraft manufacturer by revenue, the second largest by deliveries and the second-largest defense contractor in the world, will unveil the latest creation, the 787-9 Dreamliner, an environmentally friendly aircraft it hopes will revolutionize the industry of air travel.It... |
6 July 2007
11:25 GMT |
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That's exactly what a scientist is doing: she digs for platinum. In fact, she's not even digging, she's just searching for the precious metal in the dust on the roads and she estimates many kilograms of platinum are being sprayed onto streets and roads each year.Platinum comes from an unexpected sourc... |
6 July 2007
09:47 GMT |
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Biodiesel is one of the green alternatives and US production of this fuel is at an all-time high, with new biodiesel plants being constructed in record number. However, there is one problem, the fact that this process is still costly, takes a lot of time and produces toxic byproducts.A new, revolutionary catalyst c... |
3 July 2007
05:37 GMT |
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Many people are beginning to realize that global warming is not going to go away by itself, as engines that burn gasoline emit pollutants, such as carbon dioxide, that cause global warming. The US Department of Energy is very interested in a new proposition that involves using enzyme emulations to transform chemica... |
2 July 2007
08:17 GMT |
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Hydrogen fuel-cell technology sounds almost too good to be true. You combine cheap and plentiful hydrogen and oxygen gas, the fuel cell generates electricity and the by-product is simply water. But there's something more involved.So far, the biggest downside of hydrogen-powered cars is the fact that it is very... |
2 July 2007
03:38 GMT |
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Doing something about global warming and the rapid depletion of the world's non-renewable energy resources has recently become an important topic on some companies' agendas. The search for viable biofuels is well on its way and more and more car manufacturers are presenting concepts and prototypes of "gree... |
27 June 2007
11:13 GMT |
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The search for viable biofuels is well on its way, as more and more car manufacturers are presenting concepts and prototypes of "green cars" that use alternative fuel sources. Making cellulosic ethanol seems to be a good idea. Making cars run on this fuel instead of the polluting fossilized fuel is an even better on... |
26 June 2007
10:33 GMT |
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The race to find new alternative fuel sources is fully underway and some countries are seriously involved in the issue of cleaning up the air we breathe. Ethanol is a good example of such an application, diesel engines can very well run on used cooking oil and even newer sources are being taken into account, like c... |
26 June 2007
02:56 GMT |
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Hydrogen-powered cars seem to be the best solution to the problem of fossil fuels pollution. The ever increasing concerns about global warming and the future shortage of natural fuel sources have given the automotive industry and researchers from other fields alike a new impulse in developing new technologies.Though... |
25 June 2007
10:48 GMT |
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Feet, yards, inches, miles, gallons, ounces, these may mean something to some people around the world, while others struggle with online converters or, worse, software designed to convert these values, that are not reliable most of the times.How about fathoms, rods, chains, furlongs, leagues?Did anybody hear about t... |
19 June 2007
12:59 GMT |
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A fuel cell is an electrochemical energy conversion device. It produces electricity from external supplies of fuel (on the anode side) and oxidant (on the cathode side). These react in the presence of an electrolyte. Generally, the reactants flow in and reaction products flow out while the electrolyte remains in the... |
5 June 2007
15:16 GMT |
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One of the giants of the aircraft industry is considering the possibility of installing a hydrogen-powered fuel cell which would provide backup power in aircrafts in emergency situations when the main power goes offline.Boeing started a collaboration with Sandia National Laboratories to examine the feasibility of us... |
31 May 2007
04:19 GMT |
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This must be the crowning achievement in the field of alternative fuels. After the electric car and the one powered by hydrogen, this new product has the potential of successfully replacing the small city cars, which cause so much pollution.It's called Air Car, it's developed by ex-Formula One engineer Guy... |
29 May 2007
12:13 GMT |
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An important breakthrough has been made in the field of hydrogen-fueled cars. The new storage technology has overcome one of the biggest shortcomings of current technology by increasing the car's autonomy up to 300 miles.A team from the Universities of Birmingham and Oxford and the Rutherford Appleton Laborator... |
24 May 2007
16:36 GMT |
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No meal is complete without a little bit of sugar. In fact, adding a little sugar even to a salty meal enhances its taste. By 2020, you could add sugar to your car to make it more efficient in producing hydrogen.This is not a sci-fi theme and even the U.S. Department of Energy's 2006 Advance Energy Initiative p... |
23 May 2007
04:30 GMT |
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What is the world's biggest internal combustion engine? Here are some clues: it's running on diesel and it's used to power the world's largest ships. The name is Wärtsilä RTA96-C and it's the largest piston engine in the world. The turbocharged two-stroke diesel engine is manufactured by the Aio... |
16 May 2007
17:06 GMT |
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Electric cars are an environmentally friendly alternative to old internal combustion engines that use fossil fuels and pollute the atmosphere. For now, they have their limitations regarding the autonomy, because electricity is very hard to store in conventional batteries. The more efficient cars are hybrids, using b... |
16 May 2007
08:38 GMT |
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The Dragster is a modified automobile, purpose built for Drag Racing. It can be a heavily modified already existent vehicle, or it can be custom made according to race specifications.Drag racing is a parallel sprint race, for a distance of 300 meters, the classical "quarter mile." These supercars can accelerate from... |
11 May 2007
17:06 GMT |
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Hydrogen-powered cars seem to be the best solution to the problem of fossil fuels pollution. The ever increasing concerns about global warming and the future shortage of natural fuel sources have given the automotive industry and researchers from other field alike a new impulse in developing new technologies.David ... |
10 May 2007
16:31 GMT |
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In a normal internal combustion engine, the movement of the pistons turns the crankshaft, which is linked to a camshaft that opens and closes the valves, directing the flow of air and exhaust into and out of the cylinders.A new computational model greatly increases the engine performance from one combustion cycle to... |
10 May 2007
16:16 GMT |
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Scooters and mopeds are the favorite means of transportation for the youngster, especially students, due to the ease of mobility, the low purchase and maintenance price and to the fact that it's an easy way to get through heavy traffic in the big cities.Some municipalities have even banned car access in certain... |
9 May 2007
08:59 GMT |
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The search for viable biofuels is well on its way, and more and more car manufacturers are presenting concepts and prototypes of "green cars," that use alternative fuel sources.Making cellulosic ethanol seems to be a good a idea. Making cars run on this fuel instead of the polluting fossilized fuel is an even better... |
7 May 2007
10:39 GMT |
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The Solid Rocket Boosters (SRB) used on NASA's current space shuttles use solid fuel to get the thrust required to defeat the Earth's gravitational pull. The fuel is made of grains molded from a thermoset elastomer, fuel, oxidizer and catalyst. This fuel mixture is known as Ammonium perchlorate composite ... |
7 May 2007
05:30 GMT |
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You're probably wondering what does a horse's arse have to do with the most modern spacecraft. Well...everything.First, a simple truth. Most of you know the popular saying "If it ain't broke, don't fix it." This is probably the key to this apparently impossible link.1. The railroadFor starters, d... |
28 April 2007
07:05 GMT |
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Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. It is often referred to by its formula, CO2. It is present in the Earth's atmosphere at a low concentration of approximately 0.04% and it's an important greenhouse gas. In its solid state, it is called dry ice. It is a major... |
19 April 2007
04:35 GMT |
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Acumentrics Corporation announced today that it will exhibit a new, fuel cell powered, home energy appliance (micro-CHP) at the Hannover Fair this April in Hannover, Germany.Cogeneration (combined heat and power or CHP) is the use of a heat engine or a power station to simultaneously generate both electricity and us... |
6 April 2007
09:06 GMT |
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Hydrogen may be the fuel of the future. Unlike oil, hydrogen burns much more easily and is totally not contaminant as the only waste product is water. And water, as the hydrogen source, is unlimited. But current technologies do not permit hydrogen use, which is highly explosive. "One of the bottlenecks for bringing h... |
15 March 2007
05:27 GMT |
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