Take your drafting and design projects on the go with with this mobile computer-aided design program. Allowing users to view, edit, and share their work with others, this is a great resource for developing the technical drawing...

Save trees! Save graphite! Save ink! Go paperless! Make a list, mindmap, sketch an idea. Import, scale, rotate, and add text to images. Save content into books and share your creations. All this and more is yours with a free visual...

Graphing paper, pencil, ruler, protractor, and compass, all get replaced or supplemented with this dynamic geometry application. Here, you can create, move, and scale many different shapes, as well as, explore and change their properties...

On July 1, 1863 the Army of Northern Virginia, under the command of General Robert E. Lee met the Army of the Potomac, under the leadership of Major General George Meade. Considered the turning point of the war, the Battle of Gettysburg...