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Fact
The ball on top of a flagpole is called a 'truck'.      .. More >>

Word of the Day

Unit
Unit : lux (lx) (si)
Formula : lumen/square_foot
in si : 0.0161028
si unit : w/m2
in cgs : 16.1028
cgs unit : g/sec3
Category : illumination.      .. More >>