Dust Gathers Here

Features Item : Wringability and Gage Blocks Here is the interesting part of the process. " Wringability itself may be defined as the ability of two surfaces to adhere tightly to each other in the absence of external means--they are not magnetized or clamped together.

The source of the forces holding gage blocks together are thought to come from:

Air pressure from the surrounding environment as the air is squeezed out when the blocks are slid together.

Surface tension from oil that remains on the gage blocks or water vapor from the air that acts as an adhesive to hold them together.

Molecular force caused by the interchange of electrons between the atoms of the separate blocks when two very flat surfaces are brought into such close contact with each other. This force will remain even in a vacuum or if no oil or water is present on the blocks.
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