Last update December 5, 2013. What does an electron do, really? The quantum nature of electrons is often explained by quantum jumps and electrons moving mysteriously from one place to another without ever being in between. However, there is no actual evidence for this rather it arises from interpretations of quantum mechanics models. If so, what does an electron really do? Click the image to view or the link below for the full version. Click here too see the full version of the electron video.

Many of the artifacts they left behind tell a fascinating story about the advancement of their knowledge and skills. Some of these artifacts still hold secrets that are not understood such as 3000 year old bronze swords that do not corrode or super strong 4000 year old egg shell pottery . The Historical Cash Coins of Vietnam. The Ancient and Historical Shop.

The US 1797 Bust Dollar, Small Eagle Reverse, Problems in the US Mint. The US 1799 Bust Dollar, Heradic Reverse, Story of the American Shield. Why the Chinese Kai Yuan style was used on early Vietnamese coins. Ancient and Historical Coins from almost everywhere. A collection of Korean Cash Coins.

Pluralitas non est ponenda sin neccesitate. Last Updated on May 30, 2010. Quick View of Version 2. Clear logic displays in 2D and 3D. A simple mouse based editing environment. Manual and auto-complete logic entry. Many standard features for manual solving. A variety of tools for working with logic. Logic assumptions, including uniqueness. A puzzle file organizer and visual explorer. Built in internet links for every puzzle.

Also see the Ancient and Historical Shop. Vietnam was the only region to rival China in the production of cash coins issuing a vast variety over a 1000 year period. The Historical Cash Coins of Vietnam. Thánh Nguyên Thông Bảo 聖元通寶 Thiệu Nguyên Thông Bảo 紹元通寶. Chinese Kai Yuan style on early Tran dynasty coins. The Historical Cash Coins of Vietnam, Introduction.