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C00002 00002	1 bushel of soy beans = 60 lbs
C00004 ENDMK
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1 bushel of soy beans = 60 lbs
1 bushel of corn = 56 lbs
1 metric ton of wheat = 37 bushels

to produce a barrel of oil from shale requires about 4.25 barrels of water,
(derived from NYT 5 Mar 74 story asserting that to produce 100,000 barrels
per year would require 20,000 acre feet per year)

Gosper algorithm for pi
c←5;b←8;r←1;
loop: c←4096c+(42r+5)b; b ← 8b ((2r+1)/(r+1))↑3; r ← r+1;
The approximation is 2↑(12r-8)/c.
Each trip around the loop gives 6r-1 bits.

Energy content of fuels
   fuel		Kjoule/g	Kjoule/cc
Hydrogen	124.7		8.7
Methanol	 20.1		15.9
Gasoline	 44.3		30.9
Hydride	VH3	  4.7		28.4
Coal C28H42	 32.2		41.8
Wood C.32H.40O.22 17.5		14.2
H2 gas		124.7		  .0010
methane gas	 61.1		  .0044

Cost of fuels
    fuel	source		cost/10**6 Kjoule
Gasoline	crude oil		1.00
Methanol	nat. gas		1.49
		coal			1.40
		lignite			1.18
methane		wellhead		 .14-.37
		LNG imported		 .76-.95
		coal			 .76-.95
hydrogen gas	nat. gas		 .92
		coal			1.25
liquid hydrog.				2.37
	Gasoline at $0.118/gal. nat gas at $0.40 per 1000 cu ft.
coal at $7/ton or $0.25/million Kjoule. Lignite at $2/ton or
$0.25/million Kjoule.  Science 28 Dec 1973 - T.B. Reed and R. M. Lerner