A typical ECG in AF shows no P waves and an irregular ventricular rate. AF is often treated with medications to slow the heart rate to a near normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can also be used to convert AF to a normal sinus rhythm and is often used emergently if the person is unstable.
How does a water tower work? Water towers provide extra water storage for a town's water supply. They hold about a day's worth of water, so if the town's pumps fail (like during a power outage), the water tower acts as a backup water supply.
How Waterjets Work. Waterjets cut with a supersonic stream of water that is so powerful it can cut through materials in one pass without shredding or crushing them. The Jet Edge water jet is created by pressurizing water up to 75,000 psi (5200 bar) with a Jet Edge hydraulic waterjet intensifier pump or direct drive waterjet pump.