A non-commercial website containing information on various topics of science, history, places and geography.

Data loggers are rugged, reliable and battery operated electronic devices for monitoring temperature, humidity, voltage with other environmental parameters. They are used in a variety of applications for remote monitoring, manufacturing and aerospace.

Catalogue candidate and theses for a doctor's degree. Access to author's abstracts of dissertations. Scientific works on sociology, the mechanic, mathematician, medicine, political science, psychology, pedagogics. Delivery of works in a digital form.