If your Lincoln Memorial penny has a date before 1982, it is made of 95% copper. If the date is 1983 or later, it is made of 97.5% zinc and plated with a thin copper coating. For pennies dated 1982, when both copper and zinc cents were made, the safest and best way to determine their composition is to weigh them. Solid copper pennies weigh 3.11 grams (+/- 0.130 g.), whereas the copper plated zinc pennies weigh only 2.5 grams (+/- 0.100 g.).
Report Abuse. 1  Vibrations In Abdomen. Source(s): https://shrinkurl.im/a8czv. 2  For the best answers, search on this site https://shorturl.im/awgvM. If by stomach, you mean your abdomen, that's your intestines, and it's probably gas. 3  Sounds like it could just be little bubbles of gas.
This causes the odd noises you sometimes hear. When a doctor puts a stethoscope on your abdomen, he or she can often hear the gurgling noises, even if they are not loud enough (at the moment) for you to hear. The gurgling noises are called borbyrygmi (bor-be-RIG-me). Occasional stomach growling is entirely normal.his causes the odd noises you sometimes hear. When a doctor puts a stethoscope on your abdomen, he or she can often hear the gurgling noises, even if they are not loud enough (at the moment) for you to hear. The gurgling noises are called borbyrygmi (bor-be-RIG-me). Occasional stomach growling is entirely normal.