For practical reasons, the magnifying power of such instruments is usually in the range of 5 250×.
Astronomical transit instruments are usually refractors with apertures of 15 to 20 cm (6 to 8 inches).
Because the value gaps between similar financial instruments are usually very small and temporary, this type of activity typically involves trading in very high total nominal amounts.
Because of the need to attract the deity's attention, the sound-producing instruments are usually percussive or shrill, rather than melodic, and drums, gongs, cymbals, bells, conchs, and sistrums (timbrels, or rattles) are the most common forms.
Teachers point to the targeted pattern of the burglaries: the expensive brass tubas and sousaphones, which cost $2,000 to $7,000, are pilfered, while electronics, cheaper fiberglass tubas and other brass instruments are usually left behind.
Advertisements for the gullible even use feedback terminology without feedback instruments, like this one for a weight‐reduction system: "With alpha control you receive perfect balance and your excess weight drops off". The better instruments are usually byproducts of research, and some are costly.
However, laser diffraction instruments are usually accompanied by software that employs a default scattering model for spherical particles, which is then used to solve the inverse problem even though a significant number of particulate products occur in strongly non-spherical shapes such as needles.
Command and control instruments are usually adapted to market and technological developments throughout time.
The instruments are usually miniaturized versions of those routinely used on Earth.
Optimization is essential in the implementation phase of financial innovations, which, for financial instruments, is usually called "financial engineering".
