Antikythera Mechanism

The Antikythera mechanism is an ancient mechanical analog computer (as opposed to digital computer) designed to calculate astronomical positions. It was discovered in the Antikythera wreck off the Greek island of Antikythera, between Kythera and Crete, and has been dated to about 150-100 BC. Click here for more information.

InstaCalc Online Calculator

InstaCalc is a vision for a fast, simple and powerful calculator. You can embed it in your website or blog.

The Curta Calculator

Here are some links about the Curta calculator. Nice little machine.

• VCalc.net


• Curta.org