By varying the proportions of copper and zinc, the properties of the brass can be changed, allowing hard and soft brasses. The density of brass is approximately .303 lb/cubic inch, 8.4 to 8.73 grams per cubic centimetre.
Effective Drinks. Decaffeinated, non-mint herbal tea; non-citrus juices such as apple juice; and plenty of water usually work effectively in a diet to protect you from heartburn. Penn Medicine advises drinking only small amounts of liquid during mealtime to avoid overworking the stomach.
Vinegar, on the other hand, is acidic, so it is a bit of a surprise that many people find a sip of vinegar either straight or mixed into water is helpful against heartburn discomfort. In this sound clip, a radio show listener reports his experience using apple cider vinegar to alleviate symptoms of heartburn.