Thursday, July 28, 2005
2001 energy sources and uses
97 Quadrillion BTUs.
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40 Quadrillion BTUs from oil
23 Quadrillion BTUs from coal
24 Quadrillion BTUs from natural gas
10 Quads from Uranium and Hydro
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56 Quads lost in conversion
35 Quads productive work done
06 Quads equivalent of oil not used for energy
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[original graph by Lawrence Livermore Labs]
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If we used oil at the same rate per capita as the Europeans,
we would reduce our imports of oil by 20 Quads or 80%
Of the 27 quads used for transportation, two thirds or 18 quads is used by cars. If we doubled "average" mpg, we would reduce imports by 9 quads or 36%.
The 2004 CAFE standard for the majority of new vehicles is 20.7
The bad people are unlikely to change the CAFE standards anytime soon. But car pooling can be done now. Even a Hummer can get good "passenger miles per gallon" if it has enough passengers.
Wednesday, July 27, 2005
Tuesday, July 26, 2005
Saturday, July 23, 2005
Thursday, July 21, 2005
Artificial gravity
If there is no difference between acceleration effects and real gravity, why do we call it artificial gravity? If real gravity is an acceleration effect, then it is probably time to
give up hope for anti-gravity.
Friday, July 15, 2005
Galactic rings
How can a galaxy have spiral arms and circular orbits?
The stars are not in circular orbits; they are in spiral orbits.
What causes the spiral? The orbital decay is due to friction.
Friction with what? Something.    Something tiny I think.
---2008/07/28 different idea
These may be new, temporary, structures recently formed by the collision of two galaxies, and soon to be blended away, after a revolution or two.
Antennae Galaxies
Wednesday, July 13, 2005
Mistakes were made
in the past.
That the courts decided to have Terri starve to death demonstrates that they felt queasy about killing her.
Big Deal.
Limiting death of brain cells
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