Z for Zebra Crossing. If, like us, you ever wondered, why and how the Zebra, Puffin, Pelican and the Toucan crossed the road. Here it is https://t.co/tEt5MPJ7DB for more information on road layout and road safety also see Manual for Streets https://t.co/LPJofv9afC

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Day 16 of and P is for pneumatic a sort of Hyperloop of its day. Designed by Alfred Ely Beach's pneumatic transit, here are railways at Battersea Fields, Whitehall, New York American Institute and view of proposed railway

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Day 13 of M is for Metropolitan railway. The first underground in the world, opened in London in1863 between Paddington and the City.

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Our 'J' entry for 's is the jet engine!

Frank Whittle presented his paper on the jet engine in 1945. We have this painting of him testing the engine, though we hope a lot of artistic licence was used / that is not a ground floor window.

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Day 1 of A is for atmospheric railway. These watercolours by William Dawson show construction of I K Brunel's South Devon atmospheric railway, opened 1846-7 using the system devised by Joseph Samuda. 1/2

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