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Trajan’s Column – Roman art – Dacian Wars

By |2018-04-24T23:44:55-08:00August 28th, 2017|Art, Romans|

Trajan's Column in the Forum of Trajan, in Rome Trajan's column was built just after 100 AD to remind people in Rome about the Roman emperor Trajan's victories in a war in Dacia (DAY-see-ah) (modern Rumania). It stands in Trajan's Forum in Rome, just below Trajan's Markets, and near the old Roman Forum. Scene from Trajan's Column: Roman soldiers [...]

Who was Archimedes? Eureka!

By |2019-02-01T06:23:28-08:00July 18th, 2017|History|

Archimedes was from Syracuse, Sicily. Here you see it with Mount Etna in the background When did Archimedes live? Archimedes was born about 287 BC, so he was a little younger than Euclid. Archimedes' father was an astronomer, so he grew up knowing a lot about science and math. Who was Euclid? Greek astronomy History [...]

What is lead? Atoms, elements, chemistry

By |2018-04-24T14:44:10-08:00June 2nd, 2017|Chemistry|

A lump of lead As with all of the other heavier elements, all of the lead in the universe came originally from inside stars. Lead is the heaviest atom that is still stable, with 82 protons and 125 neutrons, just a little heavier than mercury. Unlike many other metals, lead does not conduct electricity [...]