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- Agriculture (19147 bytes)
5: ...cs|economic activity]] than in any other, yet it only accounts for four percent of the world's [[gross...
29: Airplanes, helicopters, trucks and tractors are used in agriculture for seeding, spraying op...
31: ... (Plowing) CNE-v1-p58-H.jpg|right|thumb|250px|A [[tractor]] [[plough]]ing an [[alfalfa]] field]]
48: ... surplus for competitive gift-giving). Most certainly there was a gradual transition from [[hunter-gat...
56: ... used?--> Crops and animals that were previously only known in the Old World were now transplanted to ... - Food (24212 bytes)
39: ...shing machine]], [[seed drill]], through to the [[tractor]] and [[combine harvester|combine]], etc. These h...
108: ...nsport|transportation]]. Early food processing mainly involved [[salting (food)|salting]], [[curing]],...
148: ...luence over consumers. Nevertheless, in [[2000]] only 19% of all US consumer expenditure spent on food...
166: [[Foodborne illness]], commonly called "food poisoning," is caused by [[bacteriu...
172: Less commonly, acute adverse reactions can also occur if chemi... - History of the United States (1918-1945) (54688 bytes)
7: ...reasingly mechanized with widespread use of the [[tractor]], so fewer farmers were needed to produce a grea...
38: ...mising technocrats of his generation. He was the only person elected to the U.S. Presidency who previo...
60: ...de. The banking system as a whole, moreover, was only very loosely regulated by the Federal Reserve Sy...
72: ...pe. Thus debts (and reparations) were being paid only by poling up new and greater debts. In the late ...
74: ...nts, and Germany was able to make those payments only because of large private loans from the United S... - Tricycle (4572 bytes)
5: ...an Motor Company|Morgans]]). ''Tricycle'' is commonly shortened to ''Trike''.
15: ...side tire will warn you it is getting light with only half the loss in momentum of braking both for an... - Alfalfa (6719 bytes)
18: ...nial flowering [[plant]], ''Medicago'', most commonly referring to ''M. sativa'' L., also called '''lu...
47: ...y into bales. There are three types of bales commonly used for alfalfa. Small "square" bales--actually...
49: ...ter of the bale or with a grapple (claw) on the [[tractor]]'s front-end loader. - Mules (3738 bytes)
14: ...n the early 20th century use of mules survived mainly in [[military transport]], being used to haul ca...
16: ...e the rise of the [[automobile]], the motorized [[tractor]], and other [[internal combustion engine|interna... - Coloring Pages (6278 bytes)
79: ...leuth-kids.com/coloring/imagepages/coloring80.htm Tractor] - Caterpillar track (7234 bytes)
1: ...help the vehicle to distribute its weight more evenly over a larger surface area than [[wheel]]s can, ...
6: ...d in 1770 by Richard Edgeworth, and steam powered tractors using a form of caterpillar track were reported...
12: ...irst tanks to be fielded were developed from Holt tractors which were already in use towing artillery over ...
16: ...800's invented a pre-cursor to modern Caterpillar tractor which he called the 'Universal Railway'.
18: ...of the Israeli patents were sold to ''Caterpillar Tractor Company''. - Truck (8353 bytes)
1: ... a [[motor vehicle]] for [[transport]]ing goods. Unlike [[automobile]]s, which usually have a [[unibod...
4: The term is most commonly used in [[American English]] and [[Australian En...
9: ... or van is a word derivation of pantechnicon commonly and currently used in Australia. Pantech refers ...
14: ...railer appeared in 1881, towed by a De Dion steam tractor. Steam-powered trucks were sold in France and the...
19: ...lectric lighting. The first modern [[semi-trailer|tractor-trailers]] also appeared. Touring car builders su... - Steam engine (17867 bytes)
7: ...ism|Greek]], in the [[1st century]] AD, but used only as a toy.
19: ...xcess pressure. Reliable and safe operation came only with a great deal of experience and codification...
40: Some ferryboats have used only a single double-acting piston, driving paddlewhe...
55: ...f this type always have multiple cylinders in an inline arrangement and may be single or double acting...
66: ...transportation device, the self-propelled steam [[tractor]] proved very useful as a self mobile power sourc... - Irrigation (13719 bytes)
2: ...grow crops. In contrast, agriculture that relies only on direct rainfall is sometimes referred to as [...
13: ...to shunt it from one set of ditches to another. Unless the field is small or very level, parts of it ...
18: ...though it may be more cost effective to use them only for animal pasturage).
22: ...eased water pressure. This type of system is commonly used in lawns, golf courses, cemeteries, parks, ...
24: ...5 to 1.9 inches (10 to 50 mm). Guns are used not only for irrigation, but also for industrial applicat... - Organic farming (38858 bytes)
103: ... remained below the awareness of the food buyer. Only when the contrasts between organics and the new ...
107: ...anged the labor [[equation]]: there were some 600 tractors in the US around 1910, and over 3,000,000 by 195...
145: ... and training indicated 26 GM crop projects, and only one related to organic agriculture.[http://www.b...
155: ...produced, or even that food, like energy, is not unlimited. If the methods used to produce food are ra...
157: ...nd ''farming'' issues - lumping the two together only confuses the discussion.
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