Discharge tube

A partially evacuated tube that contains two or more electrodes. The rarefied gas in the tube glows when a sufficient voltage is applied to the electrodes. See discharge lamp, ...

angular discharge tube

Construction; Plumbing

A discharge tube that changes the direction of water flow to approximately 90 degrees.

angle discharge tube

Construction; Plumbing

A discharge tube that changes direction of the flow by 90 degrees.

glow-discharge tube

Aviation; Aeronautics

A glass electron tube containing a gas under a low pressure. A high voltage across two electrodes in the tube ionizes the gas, and when electrons flow through the ionized gas, it ...

cistern

Construction; Architecture; Building/real property; Carpentry; Demolition/excavation

water recipient like a well or a tank

acrylic

Construction; Plumbing

A thermoplastic (heat activated) used on the surfaces of bathtubs and whirlpools. It usually comes in sheets and is backed by fiberglass to form waterproof shower walls.

adaptor

Construction; Plumbing

A fitting that unites different types of pipe together, for example: ABS (Aristocraft bristone styrine) to cast iron pipe.

alkalinity

Construction; Plumbing

The measurement of constituents in a water supply which determine alkaline conditions. The alkalinity of water is a measure of its capacity to neutralize acids, also referred to ...

aerator

Construction; Plumbing

A device screwed into the end of a faucet spout that mixes air into flowing water, and controls flow to reduce splashing. It sometimes contains a baffle to reduce flow to 2.5 gpm.

acidity

Construction; Plumbing

The level of concentration of acid in water. Acid will neutralize an alkali or base. It is usually expressed in terms of its calcium carbonate equivalent .

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Industry/Domain: Energy Category: Renewable energy

Bacteria power

Electricity derived directly from bacteria. Like other cells, bacteria use electrons taken in from food to generate energy, but must ensure that these ...