Tuesday, December 18, 2012


Today's word is PENETROMETER.

It is the device used to measure clay (soil) wetness. So at clay companies they give you a softness rating, like 5.5 or 6.0 or 7.0 etc. Soft clay is 5.5. 

From the Free Dictionary:               http://www.thefreedictionary.com/penetrometers

penetrometer  also penetrameter  
1. A device for measuring the penetrating power of electromagnetic radiation, especially x-rays.
2. A device for measuring the denseness, compaction, or penetrability of a substance, such as soil, agricultural produce, or semisolid petroleum products. A penetrometer typically measures the resistance of the substance to penetration to a given depth by a weight-driven cone or needle of a given shape.

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