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Marjan Kelemen

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points
257
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52. Nasrin 24 T 303
53. Meryl de la Rey 267
54. Marjan Kelemen 257
55. Navodit Gupta 224
56. Irena Katic Kuzmanovic 218
last 3 solved tasks
Find the country and its capital city, using the move of a chess knight. First letter is S. Length of words in solution: 5,8.
Find the country and its capital city, using the move of a chess knight. First letter is C. Length of words in solution: 5,7.
Find the country and its capital city, using the move of a chess knight. First letter is V. Length of words in solution: 7,4,7,4.

Refrigerated railcar

In 1868, a patent for a refrigerator car, “ice box on wheels,” was granted to William Davis, a fish dealer in Detroit, Mich. (who also designed the first railroad refrigerated car).

Ballpen in space

When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity.
To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.
The Russians used a pencil.

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