Carbon Nanotube 'Shock Absorbers' Excel At Dampening Vibration

This image shows clusters of the carbon-nanotube vibration-dampening material. (Credit: Nikhil Koratkar, Rensselaer Polytechnic Institute)

 Jan. 21, 2005 — TROY, N.Y. — Research on a new class of nanostructured materials used to reduce vibrations in mechanical equipment and electronic devices, being developed by a team of scientists at Rensselaer Polytechnic Institute, will be featured in Nature Materials.

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“The nanoscale building blocks we have developed have both micro and macro applications,” said Nikhil Koratkar, assistant professor of mechanical, aerospace, and nuclear engineering at Rensselaer. “The new systems reduce and control vibrations within structures and will benefit the performance, safety, and reliability of future manufacturing equipment, sensitive laboratory equipment, and everyday electronic devices.”
The Rensselaer research team, led by Koratkar, added carbon nanotube fillers to traditional vibration reduction materials to enhance their energy dissipation capability. Adding large quantities of nanoscale fillers increases the amount of surface area, and thereby increases frictional sliding that occurs at the filler-to-filler interface. The result is a decrease in vibrations.
In 2004, Koratkar received a National Science Foundation (NSF) Faculty Early Career Development Award (CAREER) to fund the development of these new materials. Additional Rensselaer researchers on the project include Pulickel Ajayan, professor of materials science and engineering; Pawel Keblinksi, associate professor of materials science and engineering; and Jonghwan Suhr, a doctoral student in mechanical, aerospace, and nuclear engineering.
The research is available in the Nature Materials journal online, and will be published in an upcoming print edition of the journal

Real Jetpack developed!!

Real Jetpack developed!!

You probably already know what this one is because of the title. This is a real Jetpack developed by Glenn Martin of New Zealand. This cool device can fly for around 30 minutes and fly at speeds of up to 60 miles per hour.

"Solar Tunnel"

The project, known as the "Solar Tunnel", is the first of its kind in Europe in that it is the first time the railway infrastructure has been used to generate green energy.

The €15.7 million ($21.5 million) project will supply 3300 MWh of electricity annually, enough to power 4,000 trains. High-efficiency solar panels — 16,000 of them, with a rating of 245W each — were turned on, on the roof of a high-speed rail tunnel in Antwerp, Belgium (all of which were supplied by JinkoSolar). The 3.6-kilometer (2.2-mile) tunnel was built to protect trains from falling trees as they pass through an ancient forest. The installation covers a total surface area of 50,000m² (538,000 ft2). The electricity produced by the installation will be used to power railway infrastructure, such as signals, lighting and the heating of stations. It will also power the trains using the Belgian rail network. The endeavor is estimated to reduce CO2 emissions by 2,400 tons per year

Autodesk Fusion 360

Autodesk Fusion 360

Racing concept bicycle by Mindaugas "Gus" Petrikas
http://fusion360.autodesk.com/projects/pursuit-bicycle-concept

"The main idea behind this little project was to create a bicycle frame which could be 3D printed and would withstand all the forces that a bicycle experiences."

Water bottle light

This was done in Philippines. Water and bleach in bottle of coke was fitted on the roof. It absorbs and reflects sunlight and is equal to 55 watt ... Cheers to Engineers.

The-circular-walkway-in-Shanghai,China

Tokyo Bay Bridge

mechanical

MECHANICAL