## September 2007

#### Build a Solar System

by knann (via)Make a scale model of the Solar System and learn the REAL definition of "space." Enter how big you want to the sun to be in your model (in inches). Press calculate to see how to scale. Here is an example:If you build your solar system on a roll of toilet paper, you can make the Sun about .4 inches (10 mm) across and still fit the entire solar system on the roll. A standard roll of toilet paper has about 450 sheets that are about 4.375 inches long, hence the roll is about 164 feet long. You should check your toilet paper for length. Some are longer.

## August 2007

## July 2007

## June 2007

#### Integral Calculator

by Zero & 1 otherOnline Integral Calculator by Wolfram, which produce the Mathematica.

#### xThink Online Calculator (beta)

by ycc2106Online Scientific Calculator, where you write (draw) the symbols, you can annotate and save your work. -useful!

## May 2007

## April 2007

#### Salary Reports. Free. Online. Personal - Salarybase is the Internet Salary Calculator

by shellyle (via)allow people to know their true market worth and to shift compensation information power to employees. SalaryBase aggregates anonymous and comprehensive up-to-date salary data and share this knowledge back to the community. Are you getting your true worth today? Join the SalaryBase way today!

## March 2007

#### My Hourly Rate Calculator | freelancetipster.com

by simon_bricolotool will help you calculate what you should be charging for your services

#### Instacalc Online Calculator | instacalc.com

by simon_bricolo & 8 otherscalculatrice collaborative en ligne qui peut-être insérée dans une page web, éditable par tout le monde, intégrée dans des tableaux et partagée distribuée avec un lien.