The Welsh copper industries of mining, smelting and refining created generations of talented workers. Although dominated by men, women took part too, particularly in the North Wales mines.
Asphalt (Composition) Shingles: The ideal temperature range to install asphalt shingles is between 70 and 80 degrees Fahrenheit. Colder than 70 degrees and the adhesive will not reach the ideal elasticity and will not create a perfect seal.sphalt (Composition) Shingles: The ideal temperature range to install asphalt shingles is between 70 and 80 degrees Fahrenheit. Colder than 70 degrees and the adhesive will not reach the ideal elasticity and will not create a perfect seal.
Â· Cycling temperatures: Of the three temperatures used in a cycle of PCR, the denaturing and extension temperatures remain unchanged for the most part, since most DNA is denatured at 94-95 degrees C, and the temperature optimum for the Taq DNA polymerase lies between 72 and 74 degrees C.