sulibaw
By tuning musical instrument we mean that to produce a note of Desired frequency. Take a standard musical instrument of well defined frequency. The new musical instrument and the standard instrument are sounded together. Initially we will hear mixed sound due to slightly frequency difference between them. The frequency of the musical instrument is gradually adjusted till we will hear same sound. When this happens, the musical instrument Will produce the note of desired frequency and is said to be turned. In this way, beats become useful in tuning a musical instrument.
Well I tried to use "cheat engine" to cheat in "tribal wars" but couldn't get something useful.
Each instrument used in analytical chemistry has a useful working range. This is the range of concentration (or mass) that can be adequately determined by the instrument, where the instrument provides a useful signal that can be related to the concentration of the analyte .All instruments have an upper and a lower working limit. Concentrations below the working limit do not provide enough signal to be useful, and concentrations above the working limit provide too much signal to be useful. When calibrating an instrument for use, the experimenter must be familiar with both the lower and upper working range of the chosen instrument.
Compass
The answer depend on the instrument. And since you have not bothered to state which instrument, I cannot provide a more useful answer.
A tongue depressor.
i say that native instruments are still useful for all filippinos
The most useful instrument used in falling slowly is a parachute.
The Electron Microscope
It's a useful instrument for detecting weather. It measures air pressure.
A compass was invented by the Chinese and was very useful to the sailors.
A piano is a easy-to-learn instrument. The piano is a good beginner instrument, saying that you will have more experience with the notes and for further use of instruments, for example, the violin.