Atomic Number: 24
Atomic Symbol: Cr
Atomic Weight: 51.996
Boiling Point: 2671 C
Melting Point: 1907 C

Chromium was discovered in 1797. The metal has a steel-gray color and is lustrous and hard. Because of the hardness of this metal, it is mixed with other metals to harden steel, create stainless steel, and form many alloys. However, its main uses are to create hard, beautiful surfaces, and to prevent corrosion on metals. When mixed with glass, the glass turns an emerald-green color and is also used as a catalyst. All of chromium’s compounds are colorful. They are toxic and should be handled with proper safety equipment and safeguards.

This is a list of the most basic commands in Logo, organized from the most basic to the most complex.

Forward: The forward command will move the Logo turtle forward any number of steps. To use this command type “fd #”. For example, the command “fd 5″ will move the turtle forward 5 steps.

Backward: The backward command will move the Logo turtle backward any number of steps. To use this command type “bk #”. For example, the command “bk 5″ will move the turtle backward 5 steps. Continue reading this post…

Logo is a computer programming language that was designed in 1967 by Wally Feurzeig & Seymour Papert. There are many softwares that can be used to run logo, the most popular being MicroWorlds Pro or Microworlds EX, which you can get for only $99 each; a pretty good deal compared to all the features of the software (for details, scroll down). You can also get a demo version (MicroWorlds Pro, MicroWorlds EX) of these softwares, but these only last for 15 days. However, there are many free versions of logo that you can download online. Using logo, you can create pages that can be published to the World Wide Web. Logo is a powerful computer programming language that can be used to create beautifully designed pages of dynamic content. For a full list of all the websites mentioned in this article, please to go to the bottom of this page, titled “Related Links.” Continue reading this post…