- Rubber Mat for Air Lifting
The air has property pushing vertically the surface of matter evenly. The purpose of this product is to make students feel barometric pressure by doing experiments with “Rubber Mat for Air Lifting”. Students can realize how heavy the atmospheric pressure is when they try to lift it up. It is easy to use when you put the rubber mat on smooth surface(like table, chair etc.) and try to pull it up.
- Material: NBR rubber
- Size: 300 × 300 × 3 mm (rubber)
- Knob: diameter ca.30 mm
- Weight: ca. 450 g
Comparison of different pulling direction – horizontal sliding and vertical lifting -
- Put “Rubber Mat for Air Lifting" onto the flat surface.
- Lift vertically the mat up.
- Slide the mat horizontally.
- Lift a corner of the mat.
To lift the mat is very hard, because atmosphere pressure is pushing the mat. Against, on the other hand, sliding the mat is not difficult. When lifting a corner of the mat, the mat may be lifted easily because atmosphere pressure does not have big effect at the corner which has a small area. After the corner is lifted once, air goes into bottom of the mat and the pressure equals on face side and back side of the mat. Therefore “Rubber Mat for Airlifting” can be easily lifted.