SOLAR IMPULSE 2011  AROUND THE WORLD IN A SOLAR AIRPLANE

www.solarimpulse.com/
Solar Impulse has demonstrated that a solar-powered airplane can fly day and night without fuel. .... 12.07.2011. Bertrand Piccard's first flight · 02.07.2011 ...


Solar Impulse plane completes first solar-powered night flight

by Bruce Tyson
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Created on: July 13, 2010
Pushing the envelope of technology, the Solar Impulse plane completed an all-night flight as the aircraft paves the way for the first around the world solar powered flight.
Still in its infancy, solar powered transportation represents one of the most revolutionary concepts in the world today. As demonstrated by the Solar Impulse project, the replacement of combustion engines with clean electric motors powered by solar energy has the potential to eliminate one of the largest sources of manmade pollution.
Solar Impulse has addressed one of the longstanding challenges of solar power: dealing with darkness. To deal with the inevitable interruption of its energy source, the airplane was required to generate sufficient electricity to charge batteries during the day for nighttime operation while maintaining flight all day. Engineers overcame technological hurdles such as solar cell efficiency, battery weight, and motor efficiency to create a highly efficient design that proved capable of operating the plane non-stop for longer than 26 hours.
Billed as more of a political achievement than technological by the Solar Impulse team, the nighttime solar powered flight gives credibility to scientists who argue that renewable energy has a potent role in the future global landscape. Bertrand Piccard, a member of the team, talked about how failure in the nighttime flight could have setback the cause of alternative energy in the political sector
One of the most high profile exercises in solar development, the Solar Impulse project aims to promote the development of solar technology and the political issues it addresses. Aiming to fly non-stop around the world, Solar Impulse hopes to change the course of humanity as it sets new historical records. With the first nighttime solar powered flight under its belt, a trans-Atlantic flight comes one step closer. Solar Impulse expects completion of the development of a long distance plane ready in time for a 2011 crossing. Upon completion of that milestone, the group hopes to have a new version of its aircraft available which it will use to circle the globe in the year 2013.
Fifty specialists from six countries work on the Solar Impulse project from its bases in Dübendorf and Lausanne, Switzerland.

a world without MEN


[2]What will happen when the sun burns out in 5 million years ...

answers.yahoo.com › ... › Astronomy & Space
15 answers - 11 Apr 2008
What will happen when the sun burns out in 5 million years! ... After more time, it will blow off it's outer layers, and shrink into white dwarf status.

Male's Y chromosome may vanish in 5million years


MELBOURNE: The poorly designed Y chromosome, which makes men, is degrading rapidly and will disappear, even if humans are still around, an evolutionary geneticist has claimed. Jenny Graves from Canberra University's institute for applied ecology, said that the process is likely to happen within the next five million years but could have begun in isolated groups, the Herald Sun reported.
Graves has been studying sex-determining genes in Australian animals so as to shed light on human genetics.
Y is always in the male and is active mostly in the testicles to make sperm. Graves asserted that is a "very dangerous" place as there is a lot of cell division going and with every split there is a chance for a mutation or gene loss. She said that the X chromosome is all alone in the male, but in the female it has a friend so it can swap bits and repair itself but if the Y gets a hit it's a downward spiral. Graves said that the X has about 1000 genes left, too many relating to sex and intelligence and the smaller Y started with about 1700 genes but only has 45 left, and that's mostly "junk".
She added that if humans don't become extinct, new sex-determining genes and chromosomes will evolve, maybe leading to the evolution of new hominid species.