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posted May 20, 2015, 6:38 PM by Upali Salpadoru   [ updated Oct 2, 2015, 12:53 AM ]

Auction of a Nobel Prize Medal

Alisher Usmanov, the Russian billionaire paid $4.1 million for the Nobel Prize award to James Watson. Watson  shared the 1062 Nobel prize in Medicine alond with Francis Crich and Maurice Wlikins for discovering the structure of DNA.

He returned the medal back to Watson saying, “In my opinion, a situation in which an outstanding scientist has to sell a medal recognising his achievements is unacceptable,”

Mr Watson, 86, wishes to donate part of the fund for research and  to charity

Rocket to fly without fuel.

Graphene has wonderful properties, but this latest discovery made in China beats them all. Yangsheng Cheng of Nankai University made a “Graphene sponge’ , As you may know graphene consists of a single layer. Cheng and his colleagues put several layers of graphene oxide together and tested the properties.    

When they were cutting the sponge with a laser they noticed that it propelled. When the pieces were shot with rays of different wave lengths they got blown off. Imagine an object just getting blown off by the sun light! The biggest wonder ever heard.

When the Planetary society in Pasadena, California tested this by launching a small solar sail, the results were even better than they expected.

Although some theories have been presented to explain this, up to now there is no proper explanation.

Courtsey:-Jacob Aron. NewScientist. 30-5-2015.    

New Bandage

Doctors have found that the delay in healing of wounds is often due to oxygen starvation. San Antonio Military Hospital has developed a bandage that will change colour indicating the oxygen deficient areas. If the wound is receiving oxygen it will be green, if there is a scarcity it will turn to orange and when approaching zero oxygen level the danger signal will be red. Dr Evans has said that they are developing bandages that will hold the medicine and deliver to wounds according to a programme.

Source  Scientific American April 2015.