Geo Visitors Map


Chopper's Podcast

  Beauty & mystery in science.

The Carina Nebula: star birth in the extreme. Two telescopes, the Hubble and the Cerro Tololo Inter-American Observatory in Chile were used to make this image. Credit: NASA, ESA, N. Smith [University of California, Berkeley], The Hubble Heritage Team [STScI/AURA], N. Smith [University of California, Berkeley] and NOAO/AURA/NSF.


  Science tidbit

Plasma ball.
Plasma Ball Physics

A plasma ball is fun, but plasmas are an important part of our physical universe. From lightning to stars to the Northern Lights, plasmas are all around us.

Read about the basics of plasmas.




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.