Washington, D.C. is home to a lot of impressive architecture. Did you know that one of the gargoyles of the National Cathedral is Darth Vader?
Fact Lab
The thickness and weight of modern playing cards is subject to numerous variables related to their purpose of use and associated material design for durability, stiffness, texture and appearance.
Hoover Dam was made with massive amounts of concrete (enough to build 3000 miles of road). In order to cool this concrete, a supersized fridge was invented. This machine dispensed up to a thousand tons of ice every day! The incredible refrigeration machine helped take off decades from the project’s timeline.
Think Batman was tough? Ancient Celtic Queen Boudicca rose up an army that nearly drove out the Romans! The disgruntled Queen was badly mistreated by the powers of the Roman Empire, and ransacked many towns, including Londinium, which today we call London. Batman can be barely even look after Gotham City!
Fact Lab
The thickness and weight of modern playing cards is subject to numerous variables related to their purpose of use and associated material design for durability, stiffness, texture and appearance.
Hoover Dam was made with massive amounts of concrete (enough to build 3000 miles of road). In order to cool this concrete, a supersized fridge was invented. This machine dispensed up to a thousand tons of ice every day! The incredible refrigeration machine helped take off decades from the project’s timeline.
Think Batman was tough? Ancient Celtic Queen Boudicca rose up an army that nearly drove out the Romans! The disgruntled Queen was badly mistreated by the powers of the Roman Empire, and ransacked many towns, including Londinium, which today we call London. Batman can be barely even look after Gotham City!
Purple was expensive to the ancient Greeks. It's believed the color was discovered by a scholar when his dog bit into a sea snail and stained its mouth purple. Phoenicia, the region where purple dye was manufactured, meant "land of purple" in ancient Greek.
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