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History, Podcast, Social JC History, Podcast, Social JC

588: "St Patrick Blue"

Interesting Things with JC #588: “St Patrick Blue” - The earliest depictions of St. Patrick show him dressed in blue garments rather than green, and when George III established the Order of St. Patrick for the Kingdom of Ireland, its official color was azure blue, known as "St. Patrick's Blue."

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Podcast, History, Science JC Podcast, History, Science JC

275: "The First Colour Photograph"

Interesting Things with JC #275: "The First Colour Photograph” - On May 17th 1861 Scottish physicist James Maxwell revealed the first colour photograph at King's College in London. The photo is actually a composite of three black and white pictures, each taken through a red, green and blue filter. The images were overlayed through projection of three similarly filtered lenses, which resulted in display of a colour photograph.

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Podcast, Science, Social JC Podcast, Science, Social JC

239: "Traffic Lights"

Interesting Things with JC #239: "Traffic Lights" - Most common traffic lights operate based on timers. In areas that are not as congested, timers are not the best idea, as rural drivers may be sitting at a red light for an extended period of time. This is where sensor based traffic lights are more of an advantage. The actual sensors used can vary greatly per location, they could be lasers, rubber hoses filled with air, video cameras or inductive loops.

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