, TEACHING AND EDUCATING SOCIETY, ENLIGHTING THE FUTURE GENERATION. English in engineering comes under EST (English for Science and Technology). Unlike literary English, the joy in this English is its crispness. Writing a novel and writing a technical paper (Thesis etc) has a hell and heaven differences. Basic difference is that a technical writer must target its readers first before he sits for writing.
A cramp is a sudden, and involuntary muscle contraction or over-shortening; while generally temporary and non-damaging, they can cause mild-to-excruciating pain, and a paralysis-like immobility of the affected muscle(s).
The cramp, or charley horse, is due to the muscle contracting (shortening and tightening) in a sudden and violent way. These nocturnal leg cramps usually occur in the calf muscle. But foot and leg cramps do happen at night also. Cramps in the thighs are less common.