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2. Glossary of mathematical symbols - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_mathematical...

   A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...

3. Tachymeter (watch) - Wikipedia

   en.wikipedia.org/wiki/Tachymeter_(watch)

   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 ...

4. Pocket watch - Wikipedia

   en.wikipedia.org/wiki/Pocket_watch

   Pocket watch. Savonette with cathedral hands and luminescent dial made by Thos. Russell & Son (probably in the 1920’s) A golden pocket watch with hunter-case and watch chain. Pocket watches evolved from clock-watches, supposedly called Nuremberg eggs, worn on chains around the neck. Example by Peter Henlein, 1510, Germanisches Nationalmuseum ...

5. Mirror image - Wikipedia

   en.wikipedia.org/wiki/Mirror_image

   In geometry, the mirror image of an object or two-dimensional figure is the virtual image formed by reflection in a plane mirror; it is of the same size as the original object, yet different, unless the object or figure has reflection symmetry (also known as a P-symmetry ). Two-dimensional mirror images can be seen in the reflections of mirrors ...

6. Mechanical watch - Wikipedia

   en.wikipedia.org/wiki/Mechanical_watch

   A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function using the vibration modes of a piezoelectric quartz tuning fork, or radio watches, which are quartz watches synchronized to an atomic clock via radio waves. A mechanical watch is driven by a mainspring which ...

7. TAG Heuer Monaco - Wikipedia

   en.wikipedia.org/wiki/TAG_Heuer_Monaco

   Movement. Calibre 11. The TAG Heuer Monaco, initially introduced by Heuer in 1969, is a line of automatic chronograph wristwatches created to commemorate the Monaco Grand Prix. Notable for its distinctive square case, the Monaco was among the first of its kind in this design, following Rolex's introduction of a square chronograph in 1940.

8. Automatic watch - Wikipedia

   en.wikipedia.org/wiki/Automatic_watch

   An automatic watch, also known as a self-winding watch or simply an automatic, is a mechanical watch where the natural motion of the wearer provides energy to wind the mainspring, making manual winding unnecessary if worn enough. [ 1] It is distinguished from a manual watch in that a manual watch must have its mainspring wound by hand at ...

9. Storm watches and warnings: What the alerts mean when ... - AOL

   www.aol.com/storm-watches-warnings-alerts-mean...

   In the graphic, a photo of sugar symbolizes a sweet tea watch, meaning that conditions for making the drink are favorable. But the warning shows a full glass of sweet tea, indicating that the ...