I am a US trained PhD engineer live and work in China. I teach in Tsinghua University (China's MIT). I am involved with business start ups such as www.1bib.com. I also build and sell MetaGPS (a GPS receiver for Nikon DSLR cameras) and DragonMoss bamboo iPad case and stands. www.metagps.com and www.dragonmoss.com.
I have traveled to every state in the continental USA , every province in mainland China and many other countries in Europe and Southeast Asia. I enjoy photography and all kinds of outdoor sports. I use iPhone and Nokia phones to record the GPS tracks. I use MetaGPS units with Nikon D90 to take geotagged pictures.
My pictures (most of the new ones are geotagged) are in: http://www.flickr.com/photos/drnantu/sets/
My website: www.drtu.com