What number comes next?
Look at the series, determine the pattern, and find the value of the unknown number!Correct answers: 34
The first user who solved this task is Sanja Šabović.
#brainteasers #math
Typesetting machine patentIn 1884, the first U.S. patent for the Linotype typesetting machine was issued to Ottmar Mergenthaler of Baltimore, Maryland. His patent No. 304,272 was for a “matrix making machine.” It was first used commercially on 3 Jul 1886. (An earlier U.S. design of typesetting machine that actually operated received a patent on 15 Sep 1857, though the machine invented by Timothy Alden of New York City was designed to pick up type from cells in a horizonatal rotating wheel, and drop it into a line for composition. The first U.S. patent for a typesetting machine was issued even earlier, to Adrien Delcambre and James Haddon Young of Lisle, France, on 22 Jun 1841, for a machine with piano-style keys to operate push-type levers that released type to fall by gravity.) |