Archive for November, 2009
Earth Absorbs 4.4lbs Of Sunlight Each Second!?
Okay, now I have another question, please. 
~
I heard that every second the earth is struck by two kilograms of sunlight. that would be 4.4 pounds of sunlight each second all around the world. now I know that some of that sun energy might bounce back out into space, but as for the rest of it–well, it just gets absorbed by the various parts of the earth, right? so each second, the earth is gaining 4.4 pounds of energy?
if so, then what was earth’s weight, say, a hundred years ago compared to today?
does anyone have a scale large enough so that I can find out? LOL
What Was The Potential Energy Of The Earth-spacecraft System?
Ten days after it was launched toward Mars in December 1998, the Mars Climate Orbiter spacecraft (mass 629 kg) was
2.87 x 10^6 km from the earth and traveling at
1.20 x 10^4 km/h relative to the earth.
How Do Companies Emit Greenhouse Gases / How Can Alternative Energy Be Applied?
I was recently discussing with someone the possibility of the government installing a cap-and-trade system on American companies to reduce greenhouse gas emissions. I said that would be a baby step in the right direction, however I think we need a stricter solution, such as the development and eventually mandated uses of alternative energy (solar power, wind and tide energy, for example) instead. However, I was wondering if this is even applicable to the topic at hand? What processes exactly do happen within companies to emit so much greenhouse gas? And, could alternative energy even be substituted for the original methods of production?