When.com Web Search

  1. Ads

    related to: how accurate is the stopwatch for 10 miles radius

Search results

  1. Results From The WOW.Com Content Network
  2. VASCAR - Wikipedia

    en.wikipedia.org/wiki/VASCAR

    A VASCAR unit uses a stopwatch and a simple computer. An operator records the moments that a vehicle passes two fixed objects (such as a white circle or square painted on the road) that are a known distance apart. The vehicle's average speed is then calculated by dividing the distance between the points by the time taken to travel between them.

  3. List of measuring instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_measuring_instruments

    radius of a sphere sphygmomanometer: blood pressure stadimeter: object range strainmeter: seismic strain SWR meter: standing wave ratio Synthetic Aperture Radar: reflectivity and moisture tacheometer: distance tachometer: revolutions per minute, rate of blood flow, speed of aeroplanes taximeter: distance travelled, displacement tensiometer

  4. Speed limit enforcement - Wikipedia

    en.wikipedia.org/wiki/Speed_limit_enforcement

    It is an item of debate whether the reduction in traffic accidents per 100 million miles driven over this time [86] has been due to robotic enforcement. In the seven-month period following speed cameras in Oxfordshire being switched off in August 2010, fatalities increased from 12 to 18, a figure not out of line with the variation in fatalities ...

  5. Chronograph - Wikipedia

    en.wikipedia.org/wiki/Chronograph

    The user starts the chronograph (stopwatch) at the instant the event is seen, and stops timing at the instant the event is heard. The seconds hand will point to the distance measured on a scale, usually around the edge of the face. The scale can be defined in any unit of distance, but miles or kilometers are most practical and commonplace. [30]

  6. Stopwatch - Wikipedia

    en.wikipedia.org/wiki/Stopwatch

    A stopwatch is a timepiece designed to measure the amount of time that elapses between its activation and deactivation. A large digital version of a stopwatch designed for viewing at a distance, as in a sports stadium, is called a stop clock .

  7. Clock of the Long Now - Wikipedia

    en.wikipedia.org/wiki/Clock_of_the_Long_Now

    The required accuracy of the ratio increases with the amount of time to be measured. (For instance, for a short period of time the count of 29.5 days per lunar month may suffice, but over 10,000 years the number 29.5305882 is a much more accurate choice.)

  8. Indicator (distance amplifying instrument) - Wikipedia

    en.wikipedia.org/wiki/Indicator_(distance...

    A precision dial indicator, with a sensitivity of 0.01 mm and range of 10 mm. In various contexts of science, technology, and manufacturing (such as machining, fabricating, and additive manufacturing), an indicator is any of various instruments used to accurately measure small distances and angles, and amplify them to make them more obvious.

  9. Error analysis for the Global Positioning System - Wikipedia

    en.wikipedia.org/wiki/Error_analysis_for_the...

    Earth has a radius of 6,357 km (at the poles) making = 6,357,000 m and the satellites have an altitude of 20,184 km [15] making their orbit radius = 26,541,000 m. Substituting these in the above equation, with Earth mass M = 5.974 × 10 24 , G = 6.674 × 10 −11 , and c = 2.998 × 10 8 (all in SI units), gives: