Who Invented the Pencil Sharpener?

Who Invented the Pencil...

A look at the history of pencil sharpeners shows that the Frenchman Bernard Lassimone was the first to get a patent for pencil sharpeners in 1828. Following his invention, other designers made improvements and refinements. The Early Pencil Sharpeners Pencils had been invented before the...
Who Invented the Quadratic Formula?

Who Invented the Quadra...

Solving complicated mathematical problems is done by using complicated formula—like a quadratic equation. Many branches of mathematics and science made major breakthroughs because of it. Thus, many are curious who invented the quadratic formula. The Babylonians One of the earliest and...
Who Invented the Spiral Notebook?

Who Invented the Spiral...

The established facts about spiral notebooks show it was first mentioned in the October 1934 issue of Popular Science. However the magazine did not say who the inventor was. Early accounts also called it the memorandum notebook. The Binding Aside from spiral, there are many types of...
Who Invented String Art?

Who Invented String Art...

Introduction String art refers to a novel type of design that became popular in the 1960s. It is made up of colored strings bound together to form interesting geometric patterns and shapes. String art has its basis and origin in mathematics. One can design an endless variety of string art...
Who Invented Boolean Logic?

Who Invented Boolean Lo...

The Boolean logic (also known as Boolean algebra) is an efficient logic operations system that is very useful in studying various fields like computer science, electronics and digital electronics. The system became more popular when Claude Shannon used electric circuits and relays as an...
Who Invented the Pen?

Who Invented the Pen?

Introduction The ability to write is one of those things that men believe sets them apart from animals. It is also one of the oldest. Archeologists have found cave drawings from the time of primitive humans. These were made with sharpened rocks, the first writing instruments. Early...
Page 1 of 3123