Make a lactometer with ball point pen refill . What would you do to make the refill stand vertically straight
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how to make lactometer
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take an empty ball pen refill. remember it should have metal point.take boiling tube and fill it with water.
now use the pen to mark the point on the refill to show the part which is above the water surface.now pour out the water from boiling tube and fill it with milk. float the refill in the milk. again mark the point on the refill. now mixture water fill in boiling tube. and mark the point on the refill.
you observed points which you marked by using pen are in different location. this is due to law of ARCHEMDE'S principal
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take an empty ball pen refill. remember it should have metal point.take boiling tube and fill it with water.
now use the pen to mark the point on the refill to show the part which is above the water surface.now pour out the water from boiling tube and fill it with milk. float the refill in the milk. again mark the point on the refill. now mixture water fill in boiling tube. and mark the point on the refill.
you observed points which you marked by using pen are in different location. this is due to law of ARCHEMDE'S principal
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