Mathematical Puzzle: IF 23+4...
Mathematical Puzzle: IF 23+478-593=5.588 and 1389+99-29=34.364 THEN 87+57-56=?Correct answers: 16
The first user who solved this task is Erkain Mahajanian.
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ZoetropeIn 1867, the Zoetrope was patented by William E. Lincoln of Providence, R.I. (No. 64,117). The device was the first animated picture machine. It provided an animation sequence of pictures lining the inside wall of a shallow cylinder, with vertical slits between the images. By spinning the cylinder and looking through the slits, a repeating loop of a moving image could be viewed. |