Why the Northwest Shops BiâMart? We've been a part of the Northwest for over 60 years. That's a long time, but then, saving money never really gets old, does it? Our members shop at Bi-Mart because our stores are convenient, easy to shop and offer real values every day on name brand products.
A well is the most common way to obtain groundwater for household use. A well is basically a hole in the ground, held open by a pipe (or casing) that extends to an aquifer. A pump draws water from the aquifer for distribution through the plumbing system.
How Doorbells Work. The core of a conventional doorbell is an electromagnet. If you've read How Electromagnets Work, you know that an electromagnet is a coil of wire, often wrapped around a piece of magnetic metal. Electromagnets work on a very simple principle. Running electrical current through wire creates a very small magnetic field around the wire.