Pythagorean Cup – The clever mischievous cup !

The first thing which comes into my mind – A must do prank ! 😛 A Pythagorean Cup OR a Greedy Cup is a form  of a drinking cup which forces its user to consume less alcohol. It allows the user to fill the cup with wine, alcohol or any other liquid…

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NASA’s new robotic vision – Windbots !

Engineers at JPL (Jet Propulsion Laboratory) are working on a new class of robotic probe designed to stay aloft for a long time without wings or hot-air balloons in atmospheres of giant planets. There is no shortage of something different, challenging & cool things at NASA & we know that very well.…

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How Rocket Engines cooling system work ?

Our heavenly Internal Combustion Engines used in cars & bikes can be cooled by air & water or coolant circulating around it. But what about rocket engines ? How rocket engines cooling system works ? The engines of rocket heat up upto 6000°C. At this temperature the metals would become…

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How does Geneva drive mechanism works ?

The Geneva drive or Maltese cross is a gear mechanism that translates a continuous rotation into an intermittent rotary motion. The rotating drive wheel has a pin that reaches into a slot of the driven wheel advancing it by one step. The drive wheel also has a raised circular blocking…

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Boeing’s new laser powered fusion-fission jet engine

Get ready, for this highly UNREALISTIC jet engine… Boeing has received a patent, US 9068562, which combines inertial confinement fusion, fission, and a turbine that generates electricity. Currently this kind of engine is completely unrealistic given our mastery of fusion. But perhaps in future this might be an excellent idea.  …

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Robowar- U.S.A vs JAPAN

”Suidobashi, you have a giant robot, we have a giant robot. You know what needs to happen” says MegaBots – U.S.-based robotics company! MegaBots issued the challenge last month after giving a final touch to its Mark 2- America’s first fully-functional, giant piloted robot. Mark 2 weighs 6 tons &…

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Working of a Differential

Introduction:- In my previous article we saw about how trains turn on curved tracks. Well in automobiles, we can’t use the same principle for turning around a corner as our cars don’t run on tracks. So we cannot design our tires as the train wheels. At the beginning of auto industry,…

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How do trains turn without differential ?

We have travelled thousands of kilometers in trains, but we haven’t given a thought about how do trains turn during a curved path ? Both the wheels are connected through an axle & obviously are of same diameter. But,when a train takes turn, the outer wheel has to cover more…

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