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| MEASURING DISTANCE WITH A WHEEL IS EASY AND YOU CAN DO IT. |
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| YOU WILL NEED: A MEASURING TAPE, A THIN CIRCULAR METAL PLATE, A THICK WOODEN BOARD COVERING THE CIRCULAR PLATE , SOME NAILS AND A REEPER WOOD ABOUT A METRE IN LENGTH. |
| AT THE CENTRE OF THE CIRCULAR PLATE FIX A NAIL SUCH THAT IT IS FREE TO ROTATE. REMOVE THE NAIL. FIX THE PLATE TO THE BOARD. FIX THE MEASURING TAPE AT THE EDGE OF THE BOARD. AT ONE CORNER OF THE REEPER WOOD FIX THE CENTRE OF THE WHEEL BY MEANS OF A NAIL. YOUR MEASURING WHEEL IS NOW READY. YOU KNOW THE CIRCUMFERANCE MEASURED BY THE TAPE. NOW IF YOU MOVE THE WHEEL,THE NO. OF TIMES IT MOVED WILL BE EQUAL TO THE DISTANCE TRAVELLED. SO DO IT AT ONCE. |
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