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  This plane will be able to fly anywhere in the world within 4 hours The engine will be able to fly in outer space too. British aerospace firm Reaction Engines Limited is working on an engine system that will be able to take 300 passengers anywhere in the world in just four hours. Even more impressively, the engine will also be used to fly a plane in outer space, as Business Insider reports. The engine system is called SABRE, and it relies on a device called the precooler - technology that cools down the air entering the engineer system by more than 1,000 degrees Celsius in .01 seconds. That corresponds to an unheard-of cooling rate of 400 megawatts, and will allow the plane to “breathe” oxygen.   British aerospace firm Reaction Engines Limited is working on an engine system that will be able to take 300 passengers anywhere in the world in just four hours. Even more impressively, the engine will also be used to fly a plane in outer space, as...

  what hypersonic flow is..?   Hypersonic Technology Vehicle 2   experimental rocket glider developed as part of the DARPA project capable of flying at 13,000 mph (21,000 km/h).It is testing technologies to provide the US with the capability to strike any target in the world within one hour  Its targets are NASA's  X 43 its CFD analysis shows as mach 7

Bajaj Avenger is liquid cooled and contain fins.  the fins again may decrease its heat transfer rate and all Avenger has fins and it is both air and liquid cooled According to fins theory ,  i actually couldnt understand what will happen if fins are present in liquid cooled engines...and why avenger is having fins while rest of liquid cooled  bikes doesnt have... any body knws ...comment it

The advantages of using a Nitrox suspension - Gas charged suspensions. The rear shock absorbers on current Bajaj Pulsar series bikes are also popularly known as NITROX shock absorbers . These types of shock absorbers are actually called as ‘Gas Filled Shock Absorbers’. The visual differentiation between a conventional shock absorber and a gas filled shock absorber is a small canister (box) which is attached on one side of it. This canister holds a small amount of Nitrogen gas in it. Hence these hydraulic shock absorbers or dampers are called as gas filled shock absorbers. So what is the reason to use a gas filled hydraulic dampers instead of using a conventional one? we'll find out the answer here. The 'Royal Enfield - Bullet Electra' was the first bike in India to have this feature. The Pulsar 150/180 UG II (2’nd upgrade) then became the second model (and the first in the 150 cc and above category) to make this feature available on Indian bikes. A ...

Recommended tools: Snow saw or large knife Snow shovel or snow spade A couple pairs of waterproof gloves Find an area with a lot of dry, hard-packed snow. Use the snow saw or knife to cut large blocks -- the harder the snow is, the more solid the snow blocks will be. Your snow blocks should be about 3 feet long, 15 inches high and 8 inches deep, according to "The Complete Wilderness Training Guide." Smooth the edges of the blocks. Place them in a circle, working your way up. Blocks should decrease in size as you work upwards. Using your shovel or saw, cut a hole under the wall to create the igloo's entrance. Overlap the blocks and shape them to lean inward, creating the dome. The blocks should support each other in order to prevent the dome from collapsing. If necessary, use a stick or other support in the interior to support the blocks at the top until the dome is finished. Once all the blocks except the las...

Working of Hand Pump   Hand pump is used for bringing water from earth and is used almost every house in the world . But do you know how does hand pump work ? There are many reasons of hand pump's working . Since starting water pump from ancient time , water pump is operated under the principle of  pressure theory . There are two plunger , one is top side and other is bottom side and which is sealed by valve. When with hand pressure , top plunger will rise above and take some water but bottom plunger which is sealed by tight valve , will not send it again to wall . So , water will reach outside and after this we can use this water 

Anatomy of a Helicopter: The Blade Are Spinning and the Engine Is Running Sikorsky and a few of his contemporaries brought a technical rigor to the field that finally made vertical flight safe, practical and reliable. As the flight-crazy Russian continued to refine his helicopter designs, he worked out the fundamental requirements that any such machine needed to have to be successful, including: a suitable engine with a high power-to-weight ratio a mechanism to counteract rotor torque action proper controls so the aircraft could be steered confidently and without catastrophic failures a lightweight structural frame a means to reduce vibrations Many of the basic parts seen on a modern helicopter grew out of the need to address one or more of these basic requirements. Let's look at these components in greater detail: Main rotor blade -- The main rotor blade performs the same function as an airplane 's wings, providing lift as the blades...