The Roman Calendar

Around the world, different human cultures have used a wide variety of methods to keep track of the passing year. In the western world, our calendar system is based on the Roman model, which itself underwent a series of significant changes throughout history.

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Pre-Julian Roman Calendar                                                                   photo from WikiCommons

 

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Green Screening: A History of SFX Movie Compositing

Most Hollywood blockbusters today depend upon special effects (SFX) for their visual impact. One of the most widely-used techniques is “greenscreening”, in which multiple elements are filmed in front of a plain green background and then are “composited” together in one scene. But the techniques of SFX compositing go all the way back to the beginnings of cinema.

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Project HORIZON: The American Military Base on the Moon

In May 1961, US President John F Kennedy called for a NASA program to send a man to the Moon before the end of the decade. It was hailed at the time as a bold step into the unknown. But two years prior to Kennedy’s speech, the US Army had already undertaken a classified feasibility study that was much more ambitious in scope than a mere Moon landing. Dubbed “Project HORIZON”, the Army’s plan called for a permanently-manned lunar outpost, with a dozen residents, that would be powered by nuclear reactors, armed with nuclear weapons, and capable of carrying out a wide variety of military tasks.

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Project HORIZON Moon base                 photo from US Defense Dept

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