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Trajan’s Column – Roman art – Dacian Wars

By |2018-04-24T23:44:55+00:00August 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 |2018-04-23T13:58:51+00:00July 18th, 2017|History|

Syracuse, Sicily, with Mount Etna in the background Archimedes was born about 287 BC, so he was a little younger than Euclid. Archimedes' father was an astronomer. Because Archimedes was related to the tyrant who ruled Syracuse, on the island of Sicily, he lived his whole life in Sicily, except when he went to study at the University of [...]

What is lead? Atoms, elements, chemistry

By |2018-04-24T14:44:10+00:00June 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 [...]