Web Results

www.reference.com/article/invented-mechanical-pencil-c623087f623c5684

The original inventor of the mechanical pencil is up for debate. There are documented references to a lead-holding pencil as early as 1565, and the earliest known version of what is now considered the modern mechanical pencil was found in 1791. There are also many paten...

www.reference.com/article/invented-pencil-446e6ed2e62d69a2

Although the exact inventor of the pencil is unknown, Conrad Gesner is often credited with the invention. In 1565, Gesner was the first to document the use of graphite placed in a wooden shaft, which was the predecessor to modern pencils.

www.reference.com/article/pencil-invented-d175c0c9bdc6c464

The pencil was first invented in Borrowdale, England, in the mid-1500s. Early pencils were not encased in wood, but were actually fragile rods of graphite that had to be strengthened by a string casing. Craftsmen eventually began to fashion hand-carved wooden cases to h...

www.reference.com/article/cool-mechanical-pencils-c00c28678f7cab5a

The Pilot Dr. Grip Center of Gravity, made with a grip so good that it won an award from the Arthritis Foundation, the Lamy 2000, with its brushed fiberglass-and-stainless steel body, the Rotring 800, with its hexagonal body and the Uniball Kuri Toga, with its auto-rota...

www.reference.com/article/long-pencil-f81faec707ff2164

A typical No. 2 pencil is 7.5 inches long with a 6.75-inch wooden shaft. Most No. 2 pencils are made from cedar with a hexagonal shaft. The lead is a mixture of graphite, clay and wax.

www.reference.com/article/invented-mechanical-clock-589f441396fcd82c

It is believed that the first mechanical clock was invented in 723 or 725 A.D. by Chinese mathematician and monk Yi Xing, also spelled I Hsing. Rudimentary clocks existed prior to that in Europe, but they did not have the escapement mechanism that is characteristic of m...

www.reference.com/article/mechanical-clock-invented-ef0c70718ffef4e4

The first mechanical clock invented was in China during the 8th century A.D. The first mechanical clocks in Europe began to appear in the early 14th century.