Author name: Threeyzmonkeys

#64 What is the difference between alternating current (AC) and direct current (DC)?

I learned this today. The difference between AC and DC current is that in DC the charge only flows in one direction but in AC it changes direction periodically. Direct current (DC) was first produced in 1800 by the Italian physicist Alessandro Volta. That is why the volt is named after him. He produced electricity […]

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#61 How do antlers grow?

I learned this today. Antlers are made of bone and can grow up to 1 inch (2.5cm) a day. Antlers are grown by the males (mostly) of the deer family. Deer are hoofed ruminants that have two large and two small hooves on each foot. There are 43 different species of deer. The smallest species

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#60 Why do birds migrate?

I learned this today. Birds migrate because of declining food sources and not because of the temperature drop over winter. Birds migrate along a north south channel. They generally use a route that gives them the most opportunities for rest and food on the way. Their paths are usually dictated by natural landmarks like mountains

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#59 Why do we say “the press” to refer to journalists and newspapers?

I learned this today. We say “the press” to refer to the media because the first newspapers were made on a movable type printing press. Johannes Gutenberg invented the movable-type printing press somewhere between 1440 and 1450. By 1450, it was in operation. Before his invention, printing was done using wooden blocks. The page to

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#56 Why is gold so rare?

I learned this today. Gold is so rare because it takes a staggeringly large amount of energy to produce it naturally. Gold has been treasured for as long as humans have been able to find it because of its unique properties. It is resistant to corrosion, conducts electricity and heat very well, doesn’t tarnish, is

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