terry wrote:
Heat one molecule and it will heat them all up?
Heat gained from nowhere?
I think of it this way. The small percentage of Greenhouse gases in our atmosphere (about 1% of the particles present) absorbs IR radiation and these molecules begin to vibrate and rotate with increased energy. This energy, however, is mostly not re-radiated as IR radiation, but, rather, used to increase the kinetic energies, via collisions, of the remaining non-Greenhouse gases.
Of course, this process is reversible: the warmer non-Greenhouse gases can collide with the Greenhouse gas molecules, excite them, and then the latter can emit IR radiation. But, the point is that, although reversible, the process is not balanced. Apparently a bit less energy is returned to the Greenhouse gas molecules by the non-Greenhouse gas molecules than is received from the Greenhouse gas molecules by the non-Greenhouse gas molecules. It is this slight imbalance that is causing the Global Warming that we are starting to hear discussed more frequency these days.
The hype is about government grant money period - among scientists
Amongst the greenies it's about wanting everyone else to live like neandrothals - they still want there modern niceties
Well, I am trying to avoid the conspiratorial aspect to this issue. To monitor this situation and make scientifically valid recommendations is going to cost taxpayers some money. But, I think it will be worth it in the long run if it can help enhance life of Earth and lead to a cleaner and healthier environment.
Jim wrote:
A rising C02 produces a warmer climate with more vegetation and plankton which consumes more CO2 and everything comes back into balance. It's self regulating!
That is the BIG question on everybody's mind...is this process "self-regulating" and soon to automatically stop or does it have the potential to turn into a catastrophy for life on Earth if nothing is done to halt the process?
I have heard some claim that there is the risk of a "runaway" Greenhouse effect occurring. In this scenario, the atmosphere heats up to, maybe, 130 °F and our weather goes into a state of chaos as far as extremes are concerned. Widespread global flooding and desertification set in and all land plant life is destroyed. The decay and wildfire combustion of that vegetation then releashes more CO2 into the atmosphere which then begins to trap even more of the Sun's incoming IR radiation. Maybe this causes average atmospheric surface temperatures to reach up to about 180 °F as all remaining life on Earth is destroyed.
Perhaps, years after such a calamity, an approaching extraterrestrial mother ship will enter our Solar system and then conclude that there are no life bearing terrestrial planets here. The first planet, what past humanity used to call Mercury is, as always a scorched moon, the next two planets, Venus and Earth, will appear almost identical from space and be enshrouded in a dense layer of cloudy atmosphere. Finally, they will note the small red planet, Mars, and conclude that it is probably the only one truly suitable for a space base or colony...
ken
On 7/6/06, I found, in any overbalanced gravity wheel with rotation rate, ω, axle to CG distance d, and CG dip angle φ, the average vertical velocity of its drive weights is downward and given by:
Vaver = -2(√2)πdωcosφ