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.
Using a Vibration Exercise Platform. Using a vibration exercise platform device is easy. You stand on the platform while the machine is vibrating and perform exercises such as deep knee bends or squats, push-ups or a variety of other types of exercises. The types of exercises that can be performed using a vibrating plate machine are really only limited by your imagination. As long as the portion of your body that you desire to receive the major portion of the exercise makes contact with the platform while itâs vibrating, you will see a benefit from it.