Brigade of Gurkhas Brigade of Gurkhas Brigade of Gurkhas is the collective name which refers to all the units in the British Army that are composed of Nepalese Gurkha soldiers. The brigade, which is 3,640 strong, draws its heritage from Gurkha units that originally served in the British Indian Army prior to Indian independence, and prior to that served for the East India Company. The brigade includes infantry, engineering, signal, logistic and training and support units. They are known for their kukris, a distinctive heavy knife with a curved blade, and have a reputation for being fierce and brave soldiers. The brigade celebrated
Foucault knife-edge test set up at the distance of the mirror's radius of curvature (radius R is twice the focal length.) with the pinhole to one side of the centre of curvature (a short vertical slit parallel to the knife edge can be used instead of the pinhole). The tester is adjusted so that the returning beam from the pinhole light source is interrupted by the knife edge. Viewing the mirror from behind the knife edge shows a pattern on the mirror surface. If the mirror surface is part of a perfect sphere, the mirror appears evenly lighted across the entire surface. If