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Engineering

The discipline, art, skill and profession of applying scientific knowledge and principles to the design and manufacturing of machines, structures, devices, systems, materials and processes.

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atomic mass constant (mu)

Astronomy; General astronomy

One-twelfth the mean mass of an atom of carbon 12 (including the orbital electrons.)

atomic mass number

Astronomy; General astronomy

The total number of protons and neutrons in an atom's nucleus. For example, oxygen-16 has a mass number of sixteen, because it has eight protons and eight neutrons.

atomic mass unit (u, dalton)

Astronomy; General astronomy

The masses of atoms and molecules are generally given in atomic mass units. These units are based on a scale in which the mass of carbon 12 is taken to be 12. Atomic masses were ...

Pastry Bag

Kitchen & dining; Cooking tools

A pastry bag is a cone-shaped bag made of canvas, plastic or plastic-lined cloth. It is used to pipe foods, such as frosting, whipped cream, cream puff dough and mashed potatoes, ...

Super Bowl indicator

Financial services; General Finance

A theory that if a team from the old American Football League pre-1970 wins the Super Bowl, the stock market will decline during the coming year. If a team from the old pre-1990 ...

senior debt

Financial services; General Finance

Debt whose terms in the event of bankruptcy, require it to be repaid before subordinated debt receives any payment.

azimuth

Astronomy; General astronomy

1) Angular distance from the north point eastward to the intersection of the celestial horizon with the vertical circle passing through the object and the zenith. 2) Directional ...

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