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A watch timing machine or timegrapher is a machine that acoustically measures the ticks of a mechanical watch to assess its accuracy and enable calibration.
This is called a limited calibration. But if the final measurement requires 10% accuracy, then the 3% gauge never can be better than 3.3:1. Then perhaps adjusting the calibration tolerance for the gauge would be a better solution. If the calibration is performed at 100 units, the 1% standard would actually be anywhere between 99 and 101 units.
Another early form of electronic speedometer relies upon the interaction between a precision watch mechanism and a mechanical pulsator driven by the car's wheel or transmission. The watch mechanism endeavours to push the speedometer pointer toward zero, while the vehicle-driven pulsator tries to push it toward infinity.
Tachymeter scale on a Citizen watch bezel. A tachymeter (pronounced / t æ ˈ k ɪ m ə t ər /) is a scale sometimes inscribed around the rim of an analog watch with a chronograph.It can be used to conveniently compute the frequency in inverse-hours of an event of a known second-defined period, such as speed (distance over hours) based on travel time (distance over speed), or measure distance ...
In 2008 the largest, in terms of number of tourists, were mainland China, Taiwan and Japan. India, Cambodia, Hong Kong, Indonesia, the Philippines and the Maldives also have dolphin watching and some whale watching. China's dolphin watching is almost entirely focussed on Sanniang Bay in Guangxi. Taiwan has several whale watching ports on its ...
This audio signal allows the pilot to concentrate on the external view instead of having to watch the instruments, thus improving safety and also giving the pilot more opportunity to search for promising looking clouds and other signs of lift. A variometer that produces this type of audible tone is known as an "audio variometer".
For example, heart rate, metabolic rate and transport cost was reduced by up to 70% during wave-riding compared to swimming at speeds 1 m/s slower in bottlenose dolphin. [19] Wave-riding behaviour can be performed by dolphins from minutes up to several hours, [ 19 ] and therefore is a useful energy-saving mechanism for swimming at higher speeds.
The Eurocopter MH-65 Dolphin is a twin-engined helicopter operated by the United States Coast Guard (USCG) for medevac-capable search and rescue (SAR) and armed Airborne Use of Force missions. It is a variant of the French-built Eurocopter AS365 Dauphin .