Geo Visitors Map

  Beauty & mystery in science.

A view of northern Namibia's Burning Mountain or Brandberg Massif from space. This granite mountain punched through the Earth's surface long ago when the southern super-continent of Gondwana split apart. Credit: NASA.

  Science tidbit

Muticolored holiday lights.
Lights in Series and in Parallel

Why is it that those old strings of holiday lights stopped working as soon as one light burned out? Couldn't they make them any better?

Learn about the change that made them better.

Delivery Addresses

We ship to most places, including AFO/APO addresses. The map shows some of the places that we have shipped to recently.

Where multiple shippers are available, the customer chooses the delivery service. Approximate shipping costs are shown prior to the completion of payment.