stackyFACTSIf you pick up two tons of concrete on the front forks, the whole machine should instantly tip over. To combat this pesky physics problem, the rear end is literally stuffed with slabs of cast iron to glue the back wheels down.
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Lifting a steel box full of people straight up a skyscraper using only pure motor strength would require an insanely massive engine. Instead, a heavy stack of…
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Leave it to nineteenth-century doctors to invent the most metal fake disease in history. When passenger trains were first introduced, medical 'experts' warned…
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Urban rails look flush with the street, but they actually harbor a cavernous groove just waiting to swallow thin bicycle tires. This hidden trench allows the…
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If you ever feel bad about your dietary choices, consider the Alaskan husky. These furry biological engines are the absolute peak of metabolic perfection.…
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Instead of each chair being an independent machine, the entire system is just one massive, highly tensioned loop of wire. If the main wheel stops, everybody…
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The London Underground tunnels twist and curve wildly, making trips much longer. Why weren't they dug in a straight line?
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