Posted on 02/18/2015 10:02:44 AM PST by Las Vegas Dave
The conceit that human production of carbon dioxide is capable of driving the earths climate is running smack into the sun. CO2 accounts for a mere 0.039% of the atmosphere, while the sun accounts for 99.86% of all of the mass in our entire solar system. And Ol Sol is not taking the insult lightly. Vencore Weather reports:
For the past 5 days, solar activity has been very low and one measure of solar activity its X-ray output has basically flatlined in recent days (plot below courtesy NOAA/Space Weather Prediction Center). Not since cycle 14 peaked in February 1906 has there been a solar cycle with fewer sunspots.
(Excerpt) Read more at americanthinker.com ...
Unlike local radio broadcasting on the VHF (FM) and medium wave bands, short-wave reception relies upon the refraction of signals from layers of gas hundreds of kilometers above the Earth’s surface (known as the ionosphere)! These layers of gas are ‘excited’ when the Sun shines on them, changing their characteristics: some of them become more reflective to radio signals when subject to solar radiation whereas some start to absorb radio signals. This is why some short-wave frequencies are good for night-time reception and others for the day-time. Sunset and sunrise present some other interesting opportunities as both the night-time and day-time layers of gas begin to swap over. This complex interplay of radio signals and layers of the Earth’s atmosphere is usually termed ‘propagation’.
http://www.short-wave.info/index.php?feature=propagation
Interesting.
Thank you:)
This takes a Phd. to figure out.
Hey Dave:
I made up a joke yesterday, feel free to pass it along if you like:
They used a groundhog to predict spring ...
and a weasel to predict global warming!
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