The Earth’s sole source of energy, aside from trivial heat coming from Earth’s core, is the Sun, which radiates sunlight to the planet at about 1360 watts per square meter. Considering Earth’s spherical shape and daily rotation, the planet immediately reflects approximately 30% of that sunlight (avg 102 W/m2), called Earth’s albedo, back into space, and absorbs approximately 70% (avg 239 W/m2) of the incoming radiation. All absorbed radiation is eventually re-radiated into the atmosphere as lower-frequency infrared radiation. At this point the exchanges get complicated, as the greenhouse gases dispersed throughout the atmosphere re-absorb and re-emit certain percentages of Earth’s infrared radiation, some of which is radiated back down to Earth, some radiated into outer space, and some spread as atmospheric heat through molecular collisions with nearby air molecules.
Doubt is clearly a value in the sciences. Whether it is in other fields is an open question and an uncertain matter.” “…it is very important to doubt and that doubt is not a fearful thing, but a thing of very great value.
Passing On the Fishing Gene By Gary Yamaguchi For The North American Post “The force is strong with this one.” Darth Vader in “Star Wars, Episode IV: A New Hope” WHAT IS IT that draws some to the sport of fishing? Fishing lures some people in, snagging them, and holding them like the barb Passing On the Fishing Gene
It is a pleasure to stand upon the shore, and to see ships tost [tossed] upon the sea: a pleasure to stand in the window of the castle and to see the battle and the adventures thereof below: but no pleasure is comparable to the standing upon the vantage ground of truth (a hill not to be commanded and where the air is always clear and serene), and to see the errors, and wanderings, and mists, and tempests, in the vale below.
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