A peak flow meter is used to measure your peak expiratory flow rate (PEFR). PEFR describes how quickly your lungs expel air during a forceful exhalation after you fully inhale. Regularly conducting a ...

Low-level fugitive CH 4 leaks caused by gas compressor dry seals can be difficult to detect with conventional gas detectors ...

Electronic fuel injection was a big leap forward for engine control. However, early implementations often left something to be desired. This was the case for [Rob] and his Porsche 944, which had ...