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Ana Kabanica

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last 3 solved tasks
Which number should replace the question mark?
How much is 4x5?

Pneumatic subway opened

In 1870, New York City's first pneumatic-powered subway line was opened to the public. It was built by Alfred Ely Beach who included a waiting room 120 feet long (the entire tunnel measured 312 feet) and embellished it with a grand piano, a fountain, ornate paintings, and candelabra so customers would not feel they were entering a dank, dreary tunnel. The twenty-two-seat subway car impressed observers with its rich upholstery and spaciousness, and comfortable ride. It fitted snugly into the nine foot diameter, cylindrical tube. Propulsion was provided by a giant fan that the workers nicknamed "the Western Tornado." It was operated by a steam engine, drawing air in through a valve and blowing it forcefully into the tunnel.American inventor and editor of Scientific American magazine which reported on technology developments and patents in the 19th-century. It is still published today, one of the world's leading science magazines. Beach himself invented a tunneling shield and built the pneumatic tube subway which propelled a carriage by means of air pressure generated by huge fans. The tunnel was short—one block—so it operated as a demonstration (1870-73), with one station and train car. In 1856 he won First Prize and a gold medal at New York's Crystal Palace Exhibition. Beach had invented a typewriter for the blind, resembling the modern typewriter in the arrangement of its keys and typebars, but embossed its letters on a narrow paper strip instead of a sheet.[Image: Tunnel entrance.]

Parking the car....

Joe and Joan were sitting down to their usual morning cup of coffee listening to the weather report on the radio. "There will be 3 to 5 inches of snow today, and a snow emergency has been declared," the weather report said.

"You must park your cars on the odd numbered side of the streets."

Joe said, "Jeez, okay," and got up from his coffee.

The next day they were sitting down with their morning cups of coffee. The weather forecast was, "There will be 2 to 4 inches of snow today, and a snow emergency has been declared.

You must park your cars on the even numbered side of the streets." Again Joe replied, "Jeez, okay," and got up from his coffee.

Two days later, again they're sitting down with their cups of coffee and the weather forecast said, "There will be 6 to 8 inches of snow today, and a snow emergency has been declared. You must park your cars on the..." and the power went out and Joe didn't get the rest of the instructions.

He turned to Joan, "Jeez, what am I going to do now, Joan?"

Joan replied, "Aw, Joe, just leave the car in the darned garage today."

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