0 a piece of equipment that measures time very accurately --
For this regulatory function an opening in the screen is not required; the gravity chronometer presents no visual stimulus.
The gravity chronometer is a product in which the author can take pride.
According to some, gravity chronometers are really tachistoscopes.
The gravity chronometer's prior main function, brief exposure together with the facilitation of reaction time measurement within experimentation, has become an extra possibility.
But then again, the term "gravity chronometer" does not always refer to the same thing.
Neither presentation nor briefness is significant in this description of the instrument, the gravity chronometer's regularity and dependability are the crucial elements.
Figure 4 is a photograph of the setup in which the gravity chronometer featured.
The falling screen of the gravity chronometer turns a switch when its opening slides in front of the stimulus.
