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Diesel two-stroke engines are used to power locomotives, large ships, and generating facilities. Find out how a diesel two-stroke engine works.

Nora Ephron, screenwriter of many classic movies, is well known for her romantic comedies. Discover 11 of her best movies in this list.

The NASDAQ Times Square display is notable because it is the largest continuous sign in Times Square. Read about the NASDAQ Times Square display.

The 1960s were a groovy time, with fads like the lava lamp and go-go boots making their debut. Find out what the grooviest crazes of the 60s were.

America buys goods at a high rate, so it's no wonder the U.S. is considered "the land of plenty." Read about the daily U.S. consumption for 12 items.

Hollywood relies on publicity stunts interest audiences in its films. Learn about some of the most outrageous of Hollywood's publicity stunts.

Maybe you're involved in a covert operation. Maybe you're just curious. We don't need to know, but you should learn the 11 terms used by spies here.

Explore prehistoric animals with dinosaur crafts including origami and fossil-making. Learn how to make fun dinosaur crafts for kids.

The T-54/T-55 Main Battle Tank series, one of the most popular in Soviet history, is still in use today. Learn about the T-54/T-55 Main Battle Tank.

The sea scorpion may have been the largest bug to ever live on the Earth, according to a recent find. Learn more about the giant sea scorpion.

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