plowing

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17 08, 2017

What is work? Physics definitions

By |2018-05-31T11:49:15-07:00August 17th, 2017|Physics|0 Comments

Ancient Egyptian cattle plowing (Louvre Museum, Paris) You might think you know what work is, like homework, or having to pick up your room, right? But to scientists, work has a more definite meaning: work is force x distance. That means that you can measure work by measuring how much force, or energy, [...]

10 08, 2017

What is sharecropping?

By |2019-09-14T06:45:51-07:00August 10th, 2017|North America|6 Comments

Sharecroppers picking cotton. See the little girl and the bigger boy? (ca 1890) How do people become sharecroppers? When people didn't own any land, or they lost their land because of not being able to pay back money or food they borrowed, they often became sharecroppers. How do people fall into debt? History of farming All our American [...]

20 06, 2017

Clay, sand, and loam – Soil types

By |2018-04-19T14:45:39-07:00June 20th, 2017|Economy, Geology|0 Comments

Soil types triangle All dirt is basically made of three different kinds of particles. These are clay, sand, and loam. Clay is very fine, small inorganic particles, worn down from rock. Sand is bigger, coarser particles, also from rock, often quartz or silica. Loam is organic particles (bits of dead plants). Geologists and [...]

12 06, 2017

Planting crops – History of Farming

By |2018-04-19T10:27:39-07:00June 12th, 2017|Economy|0 Comments

An Egyptian using a hand plow (about 1400 BC) The first part of farming is planting the seeds in good dirt, so they can begin to grow. In most parts of Europe, North Africa, and West Asia, early farmers planted their seeds in the fall, around October. You can plant seeds one at [...]

12 06, 2017

Organizing farm work – History of farming

By |2018-04-19T10:27:38-07:00June 12th, 2017|Economy|0 Comments

Egyptian wall painting of farm work Family farms Maybe when people first started farming, each family pretty much farmed by itself. Mom and Dad and the kids planted the grain and the vegetables, and later they harvested them. And throughout antiquity and the middle ages, many farms were family farms that worked just like [...]

12 06, 2017

Who domesticated cattle? History of cows

By |2019-07-15T21:53:18-07:00June 12th, 2017|Central Asia|0 Comments

History of cows: Cows in a field The wild auroch Cattle are the tame version of the wild aurochs that used to live on the grass plains of Asia, Africa, and Europe. What is an aurochs? Evolution of mammals All our biology articles About 7000 BC, people in North Africa began to keep [...]