This is Titled: A slide rule is a hand-operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry. It is one of the simplest analog computers as per Wikipedia

See the disk:  Word Well equated word buckets, it’s the lift that is word difficult[quantity[buckets]].  The horse and the deer are near to word and word frame as word ladder[Ladder] equated word dove as in diving boards, so buckets.  Example words{difficult[quantity[buckets]]} began to equate word manufacturer.

This article is looking into collecting slide rules, the calculating aid that was widely used before the electronic pocket calculator (different field of collecting). From as early as the 17th century in rudimentary form to the 1900’s when they got more common. Used by Einstein and used in space exploration until they became obsolete in the late 1970’s.

Cantore Arithmetic is able to state word heaven[Heaven] equated words next life[lives].  The process to pi is increased at Caen as the boy to the word mathematics is at the understanding that word sand equate word process[peace].

Pi equated words and a symbol that has been word listed[manifest] as the text to the numbers have been word accepted and accepted as word calculated.  To Slide Rule Men word pi is word numbered whereas word pine[Pine] equated word pure[Pure].

To increase the word element as the word process[boy[Srinivasa Ramanujan] equated word city[City] Erode the word Country is word your responsibility as pine is a word that small capitals equated at words whereas Pine equated word worth.

1.  Ramanujan came up with something much more elaborate that got to 1/pi faster: 1/pi = (sqrt(8)/9801) * (1103 + 659832/24591257856 + …). This series gets you to 3.141592 after the first term and adds 8 correct digits per term thereafter.

2.  I read his notebook and the thorough word Aspect is with word saved[stun[sun]].  You will have to read his word stuff[Stuff] yourself. 

Now the cone is the word real expansive so words here you go[insert name word sow[stun[moon[object[fact[frustration[body]]]]]].