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What is work? Physics definitions

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

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, [...]

Greek slaves: What was it like to be a slave in ancient Greece?

By |2018-06-13T19:09:36-07:00July 12th, 2017|Greeks, People|

Greek slaves: An enslaved woman playing a kithara. You can tell she is a slave because she has short hair. What did Greek slaves work at? In ancient Greece, most people who worked at jobs were slaves instead of free people. That was true for teachers, doctors, and nurses. Construction workers, policemen, hair-dressers, and mail carriers were [...]