Use this realistic hourglass as your screensaver, add classic style to your desktop.It consists of two glass bulbs placed one above the other which are connected by a narrow tube. One of the bulbs is filled with fine sand which flows through the narrow tube into the bottom bulb . Once all the sand has run to the bottom bulb, the device is inverted in order to measure another time period.its really an ideal screensaver.

Ссылка: http://www.eipc..m/downloads/hourglass.exe