This simple device facilitates the use of any tube, helping to squeeze it evenly and gently. It consists of a base in a hole which is inserted the tube, and turning a key with slit for exciting a planar end of the tube. The base and key are made of wooden bars of appropriate dimensions. Their interaction is clear from the figure.
Recommend to read
CATERPILLAR AROUND THE MOTOR
Many of you probably heard about the interesting winter sport — skijoring in which competing skiers towed by a motorcycle. In the Nordic countries is cultivated in this sport — towage of...
THE WATER WILL WARM THE SUN
Heat exchanger The same heat that we feel from sunlight, can be used for household needs in the suburban area — for example, for heating water for shower, dishes or watering plants. A...
