Question

what is vernier callipers?​

Answer 1

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• A vernier scale, named after Pierre Vernier, is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation; thereby increasing resolution and reducing measurement uncertainty by using vernier acuity to reduce human estimation error. 

Answer 2

Clear communication is a complex, nuanced and teachable practice essential for successful officers and leaders of character. Effective use of oral, visual, written, and aural modes of communication signifies the professional competence and knowledge expected in a leader while engendering the trust of those being led.