Item no .: 70130
Number of components: 157
Setup time: 2 hours
Model size: 13.5 x 6.5 x 12.2 cm.
The counter registers repetitive actions. It is an integral part of a device called an "odometer". The model has three cylinder gears with numbers from 0 to 9 and a Maltese cross gear. This combination allows you to observe an interesting mechanical property: namely, how the stroke movement of the click button with the drive mechanism changes into the rotary movement of the cylinder gears with numbers.The counter offers two possibilities for data acquisition: click button and a rotary handle. Pressing the button or turning the handle moves the counter one place. When the counter 9 passes, the Geneva cross gear catches the next register cylinder and adds it to the counter. In total, the three-digit display can register counter values from 1 to 999. You can open the front panel of the meter and reset it manually. Try to count steps on the way home. Or how many people you meet while walking through the park. How about counting the number of blue cars that pass your house in an hour? Count stairs: at home, at school or at a friend's house..