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Godfrey Kneller's 1689 portrait of Isaac Newton (aged 46)70

Isaac Newton: A Short Biography of A Popular Scientist

Sir Isaac Newton is considered one of the most popular and influential scientist in the history of science and mathematics today. He was born prematurely in Woolsthrope-by-Colsterworth Lincolnshire, England...

0 comments    math mathematics scientists
72

How to Clean White Deposits off an Orthodontia Retainer

Bleah! Your kid's orthodontic retainers are scaling up with those unsightly white deposits and it seems that no amount of toothbrush scrubbing removes it. What to do? Well first it's helpful to know what the...

13 comments    health how to children
69

How to Avoid Tooth Abscess

If a cavity is not treated or filled, it will grow bigger and deeper until it touches the nerve. When this happens, germs will get into the tooth's root and start an infection called an abscess. Swollen Gum ...

1 comment    teeth whitening dentist bad breath
Photo Courtesy Romulusnr68

What does Binary Mean?

How to count to four using only three-digit numbers.

2 comments    technology computer computers
1642-172382

Sir Isaac Newton | The 'Discoverer' of Gravity

We take Sir Isaac Newton’s views of the way things move so much for granted these days that it is hard to fathom just how extraordinary they were in the 17th Century, and just what a revolutionary...

20 comments    education science england
61

Mathway: Solve your problems with mathematics step by step

Mathematics is a subject that you love or hate. Like or not like you need to know algebra, trigonometry, calculations to complete his academic education.Fortunately (or unfortunately) the Mathway is not a...

0 comments    problems mathematics algebra
62

Khan Academy The New Isaac Asimov

At Khan Academy there is a genuis. His name is Salman Khan (Sal).  According to his web site at Khan Academy he reports that he is the portfolio manager of a fund in Melno Park,CA.  He also reports about...

1 comment    education science economics
Texas Instruments TI-84 Graphing Calculator61

Graphing Calculator TI-84

Get maximum performance, flexibility and connectivity for many secondary school classes. The TI-84 Plus Silver Edition is fully compatible with the TI-84 Plus and TI-83 models. The new generation combine the...

1 comment    calculator ti-84 ti-84 ebay
68

Democritus

The beginnings of the integral calculus do not belong with the great 17th century mathematicians, Newton and Leibniz, or with their immediate precursors such as Cavalieri, nor even to ‘The Method’ of...

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66

Introduction to Calculus: Studying limits

This hub is just a basic introduction to limits. Hopefully, if time permits, I will be writing about limits involving absolute value, trigonmetric functions and eventually the 'derivative' limit in another...

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