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Double Eagle (balloon)
''Double Eagle II'', piloted by Ben Abruzzo, Maxie Anderson and Larry Newman (aviator), Larry Newman, became the first balloon to Transatlantic flight, cross the Atlantic Ocean when it landed 17 August 1978 in Miserey near Paris, 137 hours 6 minutes after leaving Presque Isle, Maine, Presque Isle, Maine. It can be regarded as a successful crossing at the point that the ''Double Eagle II'' crossed the Ireland, Irish coast, on the evening of 16 August, an event that Shannon Airport notified the crew about when it happened. Newman originally intended to Hang gliding, hang glide from the balloon to a landing, while Anderson and Abruzzo continued to fly, but the hang-glider had to be dropped as ballast earlier on 16 August. While flying over France, they heard by radio that authorities had closed Le Bourget Airport, Le Bourget Airfield, where Charles Lindbergh had landed, for them. The crew declined the offer as they were running out of ballast and it would be too risky (to themselve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helium
Helium (from el, ἥλιος, helios, lit=sun) is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. Its boiling and melting point are the lowest among all the elements. It is the second lightest and second most abundant element in the observable universe (hydrogen is the lightest and most abundant). It is present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. Its abundance is similar to this in both the Sun and in Jupiter, due to the very high nuclear binding energy (per nucleon) of helium-4, with respect to the next three elements after helium. This helium-4 binding energy also accounts for why it is a product of both nuclear fusion and radioactive decay. The most common isotope of helium in the universe is helium-4, the vast majority of which was formed during t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
