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General Crossword Questions for “abacuses”
Counters first and second charges, removing their opening
The abacus, also called a counting frame, is a calculating tool used primarily in parts Today, abacuses are often constructed as a bamboo frame with beads sliding on wires, but. — “Abacus - Wikipedia, the free encyclopedia”, en.wikipedia.org
Stable rows made up of ten molecules act as the railings of the abacus. The nano-abacus has the potential to be used in a variety of nanotechnological inventions such as the nano-computer. This. — “Nano-abacus - Wikipedia, the free encyclopedia”, en.wikipedia.org
I suspect it refers to the logical abacus built by W. Stanley Jevons, also called a logical piano. There is also a hypothetical machine called an abacus machine which was introduced by Lambek for discussions of computer science. — “Talk:Logical abacus - Wikipedia, the free encyclopedia”, en.wikipedia.org