How many cubes are there?
[2534] How many cubes are there? - Cubes of the same size are stacked in the corner of a room as shown. How many cubes are there? - #brainteasers #math #riddles - Correct Answers: 176 - The first user who solved this task is Djordje Timotijevic
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How many cubes are there?

Cubes of the same size are stacked in the corner of a room as shown. How many cubes are there?
Correct answers: 176
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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The birds and the tee's?

A father spoke to his son, "It's time we had a little talk, my son. Soon, you will have urges and feelings you've never had before. Your heart will pound & your hands will sweat. You'll be preoccupied and won't be able to think of anything else."

He added, "But don't worry, it's perfectly normal... it's called golf."

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Simon Lake submarine patent

In 1897, a U.S. patent was issused for a "Submarine Vessel" invented by Simon Lake (No. 581,213). It described oscillatory lateral vanes on the sides of the vessel to set for ascending or descending, a weight to shift fore-and-aft to keep the vessel on an even keel, a compressed air reservoir, ballast tanks, an "air-tight diver's chamber provided at the bottom with a trap" (suitable for diving salvage operations), and wheels to travel on the water-bed which could be propelled and steered from within. Lake was interested in the use of a submarine for commercial, rather than military, purposes. It had a hinged observation tube, which could be provided with a mirror (forerunner of the perioscope). It was expected to be steam-powered on the surface (but in practice the heat generated by the boiler was intolerable to a crew, and thus impracticable.)«[Image: rear view of submarine, showing hull with lateral vanes, wheels and propeller.]
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