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quote:Originally posted by Karen W.Welcome back GEORGE!!!!Karen
quote:Originally posted by Roy PDid you know that if a photon was able to travel in a straight line, from the heart of the Sun to its surface, it would take only 2.5 seconds, but, because the density of the Sun is so great, it actually takes 10-million years -- bouncing around inside like a ball in a pin-ball machine.___________________________________________________Roy P
quote:Originally posted by neilep(everybody who has not looked..
quote:Originally posted by Roy Pquote:Originally posted by neilep(everybody who has not looked..Sssssh, Neil!___________________________________________________Roy P
quote:Originally posted by Soul SurferFunnily enough the latest issue of New Scientist suggests that the sun may be getting cooler (just for a few years) because we may be headed for a low sunspot count period.
quote:While Scientific American is describing ways to get round the problem. The neatest new idea I have seen is the possibility of generating a true carbon fuel cycle by collecting carbon dioxide from power plants and using bilogical/chemical processes and sunshine to create hydrocarbons to fuel power stations.
quote:Originally posted by Soul SurferThe point of the other carbon cycle is that it uses solar energy to perform the process and is potentially more efficient than doing it by growing plants in a carbon diopxide enriched atmosphere.
quote:Originally posted by Soul SurferThe most direct ways are solar cells which have no storage capability a very high energy input to manufacture them and are relatively inefficient and low grade heat which currently has very limited uses. These processes could still be used as part of a multi process energy station the carbon capture process takes the high carbon dioxide flue gasses from burning carbon based fuels and reprocesses them catalytically back to short chain hydrocarbons using sunlight. These hydrocarbons can be used to make energy locally or converted into road fuel.
I'm not sure where the technology is regard to converting CO2 back C & O2 is, but in the meantime how about clean burning synthetic fuels.
With regard to more efficient solar cells have a look at Ovonic is doing. They claim to capture and convert 20% more of the sun's energy than conventional crystalline solar cells and convert it to power. Check out these two links:http://www.ovonic.com/eb_so_solar_overview.cfmhttp://www.ovonic.com/se_ovonic_machine_building_division.cfm I also read an article on line that some guy has come up with a paint on solar conversion coating that converts infrared (½ of the sun's output) to electricity. Think of the possibilities of two technologies combined.Steve
The technology for converting CO2 back to C and O2 has been around for at least 200 million years, it uses sunlight and catalyst's such as Chlorophyll and is called vegetation
Converting CO2 back to C isn't the big problem. Finding the energy to do it is.