Inverted nipples

Place between 0.10 and 0.15 g of magnesium in the nipple of the baby bottle (see below for the technique for different forms). Place 200 mL of the acid solution in the bottle. Carefully and tightly screw the nipple cap on the bottle such that the no magnesium falls out prematurely. Then simultaneously invert the bottle into the bucket and start the timer. The reaction should start immediately, releasing the hydrogen into the bottle. Read the volume of solution, using the milliliter scale on the side of the bottle, every 30 sec until the magnesium is used up and the reaction stops. Discard the solution. 

But Stefanie returned a week iater. I had a iow-grade fever, and my hormones were out of whack. I started having hot flashes. My nipples inverted. Now I know that s a huge sign of breast cancer. ... 

The nursing bottles, caps, and nipples should be washed thoroughly with soap and hot water, then rinsed with boiling water to sterilize them and remove the last traces of soap, and allowed to dry while inverted on a sterilizer rack. 

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