Radionuclide Symbol Half-life Americium-241 241Am 432.2 years Americium-243 243Am 7.38 x 103 years Antimony-125 125Sb 2.77 years Argon-41 41Ar 1.827 hours Beryllium-7 7Be 53.44 days Californium-252 252Cf 2.639 years Carbon-14 14C 5.730 x 103 years Cerium-141 141Ce 32.50 days Cerium-143 143Ce 1.38 days Cerium-144 144Ce 284.3 days Cesium-134 134Cs 2.062 years Radionuclide Symbol Half-life Cesium-137 […]

Food Kcal/100g Fruits Apples 52 Apricots 48 Bananas 89 Figs 74 Grapefruit 32 Guavas 51 Mangos 65 Melons, cantaloupe 34 Oranges 47 Strawberries, raw 32 Tomatoes, red 18 Vegetables Asparagus, raw 20 Broccoli, cooked 35 Carrots, raw 41 Chickpeas, cooked 164 Corn, sweet, yellow, raw 86 Cucumber, peeled, raw 12 Lentils, cooked 101 Lettuce, romaine, […]

Activity METSa Description Bicycling 8 Bicycling, general Bicycling 10 Bicycling, 14-15.9 mph, racing or leisure, fast, vigorous effort Bicycling 16 Bicycling, > 20 mph, racing, not drafting Conditioning exercise 7 Bicycling, stationary, general Conditioning exercise 7 Bicycling, stationary, 150 watts, moderate effort Conditioning exercise 12.5 Bicycling, stationary, 250 watts, very vigorous effort Table continued Activity […]

Appliance Wattage Aquarium 50-1210 Clock radio 10 Coffee maker 900-1200 Clothes washer 350-500 Clothes dryer 1800-5000 Dishwashera 1200-2400 Dehumidifier 785 Electric blanket, single 60 Appliance Wattage Electric blanket, double 100 Fans Ceiling 65-175 Window 55-250 Furnace 750 Whole house 240-750 Hair dryer 1200-1875 Heater (portable) 750-1500 Iron (clothes iron) 1000-1800 Microwave oven 750-1100 Personal computer […]

Pre-industrial (1750) and Present (1998) Abundances of Well-Mixed Greenhouse Gases and the Radiative Forcing due to the Change in Abundance Gas Abundance (1750) Abundance (1998) Radiative forcing (Wm 2) Gases relevant to radiative forcing only 0 0 278 365 1.46 CH4 700 1745 0.48 N2O 270 314 0.15 cf4 40 80 0.003 C2F6 0 3 […]

Hydropower: Capability at End-1999 (TWh/year) Gross theoretical capability Technically exploitable capability Economically exploitable capability Algeria 12 5 Angola 150 90 65 Benin 2 1 Burkina Faso 1 N N Burundi >6 >1 1 Cameroon 294 115 103 Central African Republic 7 3 Chad N N Comoros Congo (Brazzaville) >125 > 50 Gross theoretical capability Technically […]

Crude oil (billion barrels) Natural gas (trillion cubic feet) Region Country Oil and gas journal World oil Oil and gas journal World oil North America Canada 4.9 5.4 59.7 59.7 Mexico 26.9 23.1 29.5 39.0 United States’2 22.4 22.4 183.5 183.5 Total 54.2 50.9 272.7 282.1 Central and South America Argentina 3.0 2.9 27.5 26.8 […]

Energy source Heat content (million Btu/barrel) Asphalt 6.636 Aviation gasoline 5.048 Butane 4.326 Butane-propane mixture (60%^0%) 4.130 Distillate fuel oil 5.825 Ethane 3.082 Ethane-propane mixture (70%-30%) 3.308 Isobutane 3.974 Jet fuel, kerosene-type 5.670 Jet fuel, naphtha-type 5.355 Kerosene 5.670 Lubricants 6.065 Motor gasoline Conventional 5.253 Oxygenated 5.150 Reformulated 5.150 Fuel ethanola 3.539 Natural gasoline 4.620 […]