write various techniques adopted by human beings to reduce energy losses due to friction
VARIOUS TECHNIQUES BEINDG ADOPTED BY HUMAN BEINGS TO OVERCOME FRICTION-
1.USING OF LUBRICANTS SUCH AS POWDER,KEROSENE OIL ETC.
1.a WE USE POWDER ON CARROM BOARDS TO DECREASE THE IRREGULARITIES ON THE SURFACE OF THE CARROM BOARD TO REDUCE THE FRICTION BETWEEN THE STRIKER AND THE BOARDWHICH HELPS TO MOVE THE STRIKER EASILY AND SMOOTHLY.
1.b WE USE KEROSENE OIL ON DOORS AS IT HELPS THE DOOR TO MOVE EASILY AND SMOOTHLY
2. USING BALL BEARINGS- THIS PHENOMENA IS USED ON MACHINES IN WHICH TINY STEEL BALLS ROLL OVER EACH OTHER WHICH DECREASES FRICTION.
3.USING OF AIR CUSHIONSON MACHINES
4. USE OF STREAMLINING-IT HELPS TO CUT DOWN THE AIR CUT DOWN THE FLUID CURRENTS WHICH HELPS THEM TO OVERCOME THE FLUIDS FRICTION.THE STREAMLINED BODY IS USED IN CARS, BUSES, SUBMARINES AND BOATS.BIRDS AND FISHES ALSO HAVE STREAMLINED BODY.