The radiant time series (RTS) method is a new method, derived directly fiom the heat balance method, for performing. design cooling load calculations. It effectively replaces all other. simplified (non-heat-balance) methods such as the cooling load.
The last wheat pennies were made in 1958. They were produced from 1909 to 1958. They are generally common and worth a few cents above face value and can be found in pocket chaâ¦nge.
Lincoln Penny (1959 to 2016) The penny or once-cent coin is the lowest denomination of the United States's currency. The most recent version of the penny is the Lincoln cent. The Lincoln penny was made of 95% copper, 5% zinc from 1959 until 1985. Since 1985 it has been minted with 97.5% zinc, 2.5% copper. It's basically a zinc core with a very thin copper jacket.