Tag Archives: energy

What is the approximate temperature immediately after an asteroid impact?

After an asteroid impacts with the Earth or other planet, a great deal of kinetic energy is released. How does that correspond to the instantaneous change in temperature in the atmosphere?

Anyone watching Bush’s speech?

He is promoting drilling and establishing new refineries, but fails to note they will be in an Alaskan wildlife preserve. As an energy alternative,nuclear power versus wind or solar. And now states farmers should be growing power, so we don’t purchase from abroad- nevermind the fact that food prices are going up. We can survive without gas- not food. Anyone else find this disgusting?
I live in Chicago. Very aware of the cold and unfortunately I use water radiator heaters so I’m used a little more cold than most. And I work outside. It’s called solar power, radiant heat flooring, and wood pellet stoves.
Ok so I forgot to mention wind power. It is a valuable supplement to solar energy during the winter. the wood stove pellets are generally made from lumber industry byproduct-sawdust. its recycling. and radiant heat can be powered by solar and wind energy, its basically circulating water and could be tied in to a tankless water heater that utilizes solar and wind power.

Are you afraid of how fragile our society has become?

Did Katrina open your eyes to just how fragile we are as a society? You see the finance guy driving around in the $300k Ferrari or the big buff guy walking around the beach and little do they realize how easily we can be reduced to nothing. Many of us do not live anywhere near safe drinking water and without energy we have no way of preserving our food, much of which is tansported hundreds or thousands of miles to where we live. I think I’m going to move out to the country, buy a cow, a pig, and a goat, and live the Quaker lifestyle! Are you with me?

What causes Gamma ray bursts?

My original theory was that comets get dragged onto exotic stellar remnants(the most likely being neutron stars) until they crash at speeds compareable to a good 1/20th of the speed of light, with such force the hadrons in their atoms are reduced to their fundamental quarks and leptons are released in the form of incredible feats of energy.

But i need more detail on the elemental makeup of what is released on impact. I know the larger hadrons are reduced into quarks and captured by gravity but what of the lighter leptons and photons?
I’ve already wread the wikipedia article, genius… I need a detailed anaylsis, not a stupid mix of myth and fact in the worstly detailed way possible…
Forget the long GRBs, i’ve already written and submitted my theisis on that, it’s the short GRBs induced by neutron stars and large objects colliding with neutron stars. I don’t know where i went wrong, but according to my calculations if something as heavy as a standard comet was to be pulled into a neutron star, the neutron star would be able to pull it with such force(due to its density) that almost all the matter in said object impacting neutron star would be converted into energy with extreme effeciency. I remember somewhere that if you dropped a marshmellow onto a neutron star it would impact the star with the force of an atomic bomb.

What is the kinetic energy of..?

A relatively small impact crater 20 kilometers in diameter could be made by a comet 2 kilometers in diameter traveling at 33 km/s (3.3×104 m/s).

Assume that the comet has a total mass of 4.2 X 10^{12} kilograms. What is its total kinetic energy? (Hint: The kinetic energy is equal to 1/2mv^{2} , where m is the comet’s mass and v is its speed. If you use mass in kilograms and velocity in {rm m}/{rm s}, the answer for kinetic energy will have units of joules.)