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Showing posts from June, 2017

The Impossible Drive

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The Impossible Drive: - Engine Working Without Fuel “Absolutely Not Possible!” YES it would be the first thing that comes in our mind after reading the title. But it is the truth that we are talking about and there is active research going on.  Up till now we have been using vehicle’s which work on hydrocarbon, bio-fuel, Electricity or some another source. With increase in technology it is now possible to use fuel-less engines.  The impossible EM (Electro-Magnetic) Drive also known as “ radio frequency  (RF) resonant cavity thruster” first found out by Roger Shawyer , is a drive working without any fuel propulsion while moving because of the photons colliding in the cylinder, controversial propulsion system really does work and is capable of generating impressive thrust that is 1.2 millinewtons per kilowatt in vacuum. It offers the incredible possibility of a fuel-free propulsion system that could potentially get us to Mars in just...

249 MPH without a Transmission System....

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Are you kidding us? Yes that would be our answer when someone will say that a car can run without what we consider its lifeline “The Transmission System”. And that is what Koenigsegg Regera has done which is a supercar and that is all the more astounding. But how did they do it and are there other ways. We will try to answer the questions today. Firstly, how the Regera does it. The Koenigsegg’s answer is “Direct Drive”. The whole transmission system is replaced by three electric motors. A mechanical transmission is simply not needed. Instead, the 1100-hp, twin-turbocharged, 5.0-liter Koenigsegg V8 which produces more power on E85 Ethanol fuel sends power directly to three electric motors, one attached to the front of the crankshaft and providing power to both the battery and to the rear motors—one for each of the rear wheels. The battery is a 9.27 kWh lithium-polymer type, weighing 253 lbs. and located in the central chassis tunnel. When the electric motors are fact...

Tweel tires

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Ø It is an airless tire and has significant advantages over a pneumatic tires. Ø Tweel tire concept is developed by French company Michelin. Ø The Tweel consists bend of conventional the rubber with the moulded thread. The shear band just below the thread that create the compliant contact patch. The series of energy absorbing polyurethane spokes and an integral inner rim structure. Both the shear band and polyurethane spokes can be design to provide a calibrated directional stiffness in order that design engineers are able to control tweel handles and how it handles load. By varying the thickness and size of the spokes, it can be design elements to engineers a wide array of ride and handling qualities. The thread can be specialized as any of today’s tires and can be replaced when worn. Thread is provided on the outer surface so when is worn, can be replaced. Ø The tweel airless tires has the potential to be able to brake better – a significant performanc...

The Holy Grail of Physics

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Friends, the days are not far when the fusion reactors and single stage rockets will no more be the theoretical things as the Harvard researchers have confirmed the discovery of the so called “holy grail of physics – Metallic hydrogen”. Well, that may seem to be a bit strange but the idea is not from any science fiction movie or novel. The idea was proposed about 80 years ago. In 1935, Eugene Wigner and Hillard Bell Huntington predicted that at a pressure of 25 gigapascals (GPa),   solid molecular hydrogen would turn into a metal . As this pressure was impossible to achieve at that time, their claims remained unverified. But with the advancements in matrial science and quantum physics, Thomas D. Cabot Professor of the Natural Sciences Isaac Silvera and post-doctoral fellow Ranga Dias finally confirmed that they have successfully created the first ever sample of metallic hydrogen at 495 GPa which is far greater from the 360 GPa pressure at the earth’s core. They were...

Wonder Material

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Researchers have been successfully able to devise out a material which can really be considered to be a wonder in the field of material science. We are talking about Graphene which has grabbed the attention of developers worldwide, thanks to its extraordinary properties and diverse range of applications. Graphene, a sheet of carbon atoms arranged in a honeycomb-like lattice just one atom thick has trumped Bucky balls and nanotubes to become the king of carbon nanomaterials. Since its discovery just a few years ago, this “wonder material” has wowed researchers with record-breaking electronic and mechanical properties. According to recent studies, graphene is not only the strongest material ever measured, but also the stiffest, and its current density– a measure of the density of flow of charged carrier particles – is a million times that of copper. But graphene is much more than just a scientific curiosity: it boasts a growing list of real-world applications which inclu...