‌A urine concentration test provides the specific gravity of your urine. This measures your kidneys’ ability to balance water content and excrete waste. It is important in diagnosing some health ...

Scientists at the Centers for Disease Control and Prevention (CDC) have adapted a simple low-tech device normally used to examine urine specimens to test and detect counterfeit drugs. They report ...

If you would like to try home brewing, you need a refractometer. A refractometer allows you to measure sugar concentration in the wort. You then use this measurement to calculate the beer’s alcohol ...