Contents

Explanations

What is the Gravity?

The coordinate system

Objects

View

Zoom

Lesson 1: Let us model the revolution of Earth around the Sun

Creating system

Saving system

Running simulation

Bookmark

Lesson 2: Edit state

StatusBar

Selecting

Popup menus

Proprity of the bodies

Continuous states

Add new bodies with the mouse

Add new bodies simultaneously

Find an object

Clipboard

Import and export

Lesson 3: Simulation state

Simulation

Control Panel

Warnings and log