A runny nose. Constant clear and watery nasal discharge from the nose is usually the first complaint. If allergies are the cause of the runny nose then itchiness of the nose and eyes will also be present. A runny nose also commonly results in a stuffy congested feeling in the nose.
by Guest Writer Jenni Worboys. A barometer is a widely used weather instrument that measures atmospheric pressure (also known as air pressure or barometric pressure) - the weight of the air in the atmosphere.
The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, bÃ¡ros meaning weight. Its official symbol is bar; the earlier b is now deprecated, but still often seen especially as mb rather than the proper mbar for millibars. âºâº Definition: Pascal. The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre.