Nowadays manufacturers will often use a thermostat bath or solid block where the temperature is held constant relative to a calibrated thermometer. Other thermometers to be calibrated are put into the same bath or block and allowed to come to equilibrium, then the scale marked, or any deviation from the instrument scale recorded.
Amy Winehouse 's boyfriend Reg Traviss has said the late singer had no interest in drugs during their time together.
No, please do the research. Roy Orbison DID NOT do drugs. He wore his prescription sunglasses because he had left his regular eyeglasses on the plane he flew in on before a concert. After wearing his sunglasses, people commented on what a groovy look it was. After that, he wore them constantly.