Calculate 12+9
IF 8 + 2 = 16106 and 13 + 6 = 78197 THEN 12 + 9 = ?Correct answers: 139
The first user who solved this task is Allen Wager.
#brainteasers #math #riddles
3D X-raysIn 1966, the first X-ray three-dimensional stereo fluoroscopic system was installed for use in heart catherization by Richard J Kuhn. The $30,000 machine, developed by Joseph Quinn was put into use at the University of Oregon Medical Center, Portland, Oregon, U.S. The X-ray tube had one anode but two cathodes, an image intensifier with polarizers, and a synchronized analyzer. This produced a 3D image that could be seen through a viewing mirror without the use of special glasses. |