< = back | = > Images (overview) < =

Blue links lead to the fully translated html versions of the page, purple links lead to pages whose start pages (as well as introductions and tables of contents at least) are already set up, green links lead to extern sites, grey means that no file is available yet).

/Notes in this color and between two / are from the operator of the German mirror site and translator/.


Update: 25.01.23

Copyright Dr. Eng. Jan Pająk



Img.538 from Seismograph (#E4)

Img.538 (#E4) Zhang Heng - a brilliant mathematician and astronomer from China.
The above likeness comes from an article by Shi Ke, entitled "The Universe Unlimited in Both Space and Time", which in 2003 was made available on the website www.pureinsight.org (he suggests taking a look at this immensely interesting article, if it is still available on the Internet).

Visitors since 15.12.22: (english sites)