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2. Electric toothbrush - Wikipedia

   en.wikipedia.org/wiki/Electric_toothbrush

   A typical electric toothbrush. An electric toothbrush, motorized toothbrush, or battery-powered toothbrush is a toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation-oscillation (where the brush head alternates clockwise and counterclockwise rotation), in order to clean teeth.

3. Detonating cord - Wikipedia

   en.wikipedia.org/wiki/Detonating_cord

   Detonating cord (also called detonation cord, detacord, detcord, blasting rope, or primer cord) is a thin, flexible plastic tube usually filled with pentaerythritol tetranitrate (PETN, pentrite). With the PETN exploding at a rate of approximately 6,400 m/s (21,000 ft/s), any common length of detonation cord appears to explode instantaneously.

4. Portable cord - Wikipedia

   en.wikipedia.org/wiki/Portable_cord

   A portable cord (also known as portable cordage, flexible cord, or extension cord) is a cable with multiple conductors used for temporary electrical power connections requiring flexibility. The cord can be employed in a range of applications, such as operating motors in small and large tools, equipment, power extensions, home appliances , and ...

5. Primacord - Wikipedia

   en.wikipedia.org/wiki/Primacord

   Primacord is a brand of detonating cord used in blasting. It was developed in 1936 by the Ensign-Bickford Company. [1] Ensign-Bickford sold their registered trademark for Primacord to Dyno Nobel in 2003. [2] which manufactures it in their Graham, Kentucky factory. [citation needed] The name is also used as a genericized trademark for any ...

6. Dental floss - Wikipedia

   en.wikipedia.org/wiki/Dental_floss

   Dental floss (waxed) Levi Spear Parmly (1790-1859), a dentist from New Orleans, is credited with inventing the first form of dental floss. [4] In 1819, he recommended running a waxen silk thread "through the interstices of the teeth, between their necks and the arches of the gum, to dislodge that irritating matter which no brush can remove and which is the real source of disease."

7. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   Charging a 12 V lead–acid car battery A mobile phone plugged in to an AC adapter for charging. A battery charger, recharger, or simply charger, [1] [2] is a device that stores energy in an electric battery by running current through it.