Chintamani Mahapatra is one of those observers.
This gives an opportunity for the U.S. administration to start a process by appointing an important person as an ambassador who can restore the strategic partnership between the two countries and interactions will be more cordial and friendly rather than exchange of bitter words.
Im Jonathan Evans.
NASA Works on New Airplanes
Americas National Aeronautics and Space Administration, NASA, is known for its work in space exploration. But aeronautics a science that deals with airplanes and flying - is still a big part of the agencys research.
NASA engineers are testing ideas that someday may produce lighter and quieter aircraft that produce less pollution. For more on the story, we turn to Bob Doughty.
NASA officials would like to see better airplanes by 2030. They want planes that burn 60 to 70 percent less fuel, pollute less and are quieter than models. Scientists say such goals are possible if manufacturers make changes to the design of aircraft and use lightweight materials. They also say new kinds of fuel need to be considered.
NASA engineers have been testing a new design of airplane wing. The wing is made of a composite material that is lighter than the aluminum alloy now being used. Composite materials are made from two or more substances.
In the future, plane wings will likely be made out of materials like this. Robert C. Scott is an aerospace engineer.
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