01 JAN 2012 by ideonexus
Dyson Spheres
The
mathematician Freeman Dyson, of the Institute for Advanced Study, offers a
scheme in which the planet Jupiter is broken down piece by piece, transported to
the distance of the Earth from the Sun, and reconstructed into a spherical shell – a
swarm of individual fragments revolving about the Sun. The advantage of Dyson's
proposal is that all of the sunlight now wasted by not falling upon an inhabited
planet could then be gainfully employed; and a population greatly in excess of that
which...Folksonomies: extraterrestrials solar power
Folksonomies: extraterrestrials solar power
A hypothetical sphere surrounding a star, harnessing all of its power.
01 JAN 2010 by ideonexus
Signs of Global Warming in 1950
...the evidence that the top of the world is growing warmer is to be found on every hand. The recession of the northern glaciers is going on at such a rate that many smaller ones have already disappeared. If the present rate of melting continues others will soon follow them.
...The glaciologist Hans Ahlmann reports that most Norwegian glaciers 'are living only on their own mass without receiving any annual fresh supply of snow'; that in the Alps there has been a general retreat and shrinkage ...Folksonomies: global warming
Folksonomies: global warming
Scientists knew the planet was undergoing a dramatic climate change, but thought it was a natural swing. The idea that it was anthropogenic was not considered.