Calculating time and distance

How can we calculate time differences and distances across the Earth?

These calculations can be pretty tricky but Google Earth can give us a hand.

Simulating the rotation of the Earth

Create a Flash movie in Adobe Captivate using Google Earth.

• In Google Earth, select View>Grid. This will display the prime meridians.

• Using the Sunlight feature on Google Earth, zoom out from Earth.

• Select the time slider button.

• Drag the arrow from the time slider back two days.

• Open Adobe Captivate.

• Select Software simulation.

• Select Settings>Modes.

• Uncheck Text captions and Mouse movements.

• Record a simulation of the rotation of the Earth over two days.