Interact with the applet below for a few minutes. [br][br]Be sure to alter the [b]base[/b] and [b][color=#980000]location of the brown point[/color][/b] as you do. [br][br]Notice any patterns? Anything interesting? Describe what you observe in your own words. [br][br][i][color=#0000ff][b]Why does this phenomenon occur? [/b][/color][/i]