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Eugenio G. F. de Kereki

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12. Sanja Šabović 3068
13. Nílton Corrêa De Sousa 3000
14. Eugenio G. F. de Kereki 2693
15. Nasrin 24 T 2505
16. Roxana zavari 2488
last 3 solved tasks
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
If 47aba - a90cb = 2c04c find number abc. Multiple solutions may exist.
NUMBERMANIA: Calculate the number 2432 using numbers [5, 6, 7, 7, 30, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

3D projector

In 1901, Claude Grivolas, one of Pathe's main shareholders in Paris, France, patented a projector for three-dimensional (stereoscopic) movies viewed wearing spectacles with one red and one blue lens (French patent No. 310,864). He received a British patent on 23 May 1901 (No. 10,695) For filming, he used a dual camera arrangement which photographed images alternately. He then created one composite master film with the left camera images alternated with the right camera image. His projector had a shutter with one red and one blue transparent sections, with opaque quadrants between them. Left-eye images were projected through the blue filter followed by right-eye images in red light. The movie appeared black and white when viewed using red/blue spectacles.*[Image: rotating shutter with red and blue quadrants alternately project left (L) and right (R) frames of movie film.]

Glenn Wool: Uncle Sam

You know who Uncle Sam is, hes that goat-faced dude who dresses like Apollo Creed. Hes always pointing at you. He wants you. Is that really the imagery we should be listening to? An uncle who looks like hes about to touch you? Uncle Sam wants you to keep a secret.
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