Non-Profit

Welcome to the Atomic Archive. This site explores the complex history surrounding the invention of the atomic bomb - a crucial turning point for all mankind.

Welcome to the Atari History Museum. This site is the culmination of years of research and hard work by enthusiasts with the support of numerous former and current Atari employees and is intended to provide images and information on all areas of Atari. Our mission is the preservation of all things Atari (Its history, products and knowledge.)
This site provides information, images and personal stories on all items produced by Atari as well as news and links to further assist any and all individuals interested in learning more about the company that helped to pioneer and shape many areas of Video Arcade Entertainment, Home Consumer Electronics, Personal Computer Systems and much, much more...

Welcome to the Association for Women in Mathematics! We're a nonprofit organization dedicated to encouraging women and girls in the mathematical sciences. Have fun investigating our web pages! - Carolyn Gordon, President of the AWM

The History of Acupuncture in China
Acupuncture, or needle puncture, is a European term invented by Willem Ten Rhyne, a Dutch physician who visited Nagasaki in Japan in the early part of the seventeenth century. The Chinese describe acupuncture by the character 'Chen', which literally means 'to prick with a needle', a graphic description of this therapeutic technique.

Rittenhouse Square, one of William Penn's original five, was known as the southwest square until 1825 when it was named for the astronomer-clockmaker, David Rittenhouse (1732-96). This amazing man of universal talents -- one of many in 18th century Philadelphia -- was a descendant of William Rittenhouse, who built the first paper mill in America in Germantown. He was at various times a member of the General Assembly and the State Constitutional Convention, and president of the Council of Safety. His survey of the Maryland-Pennsylvania boundary in 1763-64, to settle a dispute between the Penns and Lord Baltimore, was so accurate it was accepted and followed by Charles Mason and Jeremiah Dixon when they surveyed the "line" for which they are still remembered. Professor of Astronomy at the University of Pennsylvania and inventor of the collimating telescope, he was also president of the American Philosophical Society and the first director of the United States Mint.

There are two other important Internet sources for information on Sundials. The first is Sundials on the Internet. Links to pages on SotI are included in the list below, and are suffixed with [SotI].
Second is The Sundial Mailing List maintained by Daniel Roth. The Internet dialing community is indebted to Daniel for the mailing list, as well as his list of links from which those below were originally derived.
Here is a link to the AltaVista translation utility which may help you with pages that are not in your native language.

The VMI evolved on the campus of the University of California at Santa Cruz from 1975 until the retirement of Ralph Abraham as Professor of Mathematics in 1994, when it moved to a new location in downtown Santa Cruz. It was incorporated as an educational institution in August of 1996. In January of 1997 it acquired 501(c)(3) nonprofit status from the IRS.
The VMI exists for these reasons:
Research on the frontiers of chaos theory, especially for massively complex dynamical systems.
Applications of chaos theory to model complex natural systems, for example, the global economy, large-scale ecosystems, and social systems.
Reform in the curriculum and teaching methods of mathematics in schools, all levels.
Revealing the beauty and importance of mathematics to a broad public.

Rare Book School (RBS) Rare Book School (RBS) is an independent non-profit educational institute supporting the study of the history of books and printing and related subjects. Founded in 1983, it moved to its present home at the University of Virginia in 1992. National Public Radio's "All Things Considered" aired a story on RBS in August, 2003.

The Wellcome Library preserves the record of medicine past and present to foster understanding of medicine, its history, and its impact in society.

One of the world's greatest collections of books, manuscripts, pictures and films around the meaning and history of medicine, from the earliest times to the present day. We are freely open to the public without appointment and provide a wide range of enquiry services.

The Polynesian Voyaging Society (PVS) was founded in 1973 to research how Polynesian seafarers discovered and settled nearly every inhabitable island in the Pacific Ocean before European explorers arrived in the 16th century. Some scholars have argued that the Polynesian drifted to these islands by accident; PVS set out to show that a voyaging canoe of Polynesian design could be navigated without instruments over the long, open ocean migration routes of Polynesia.