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  2. Craftsman (tools) - Wikipedia

    en.wikipedia.org/wiki/Craftsman_(tools)

    Craftsman is a line of tools, lawn and garden equipment, and work wear.Originally a house brand established by Sears, the brand is now owned by Stanley Black & Decker.. As with all Sears products, Craftsman tools were not manufactured by Sears during the company's ownership, but made under contract by various other companies.

  3. String trimmer - Wikipedia

    en.wikipedia.org/wiki/String_trimmer

    A string trimmer, also known by the portmanteau strimmer and the trademarks Weedwacker, Weed Eater and Whipper Snipper, [1] [a] is a garden power tool for cutting grass, small weeds, and groundcover. It uses a whirling monofilament line instead of a blade, which protrudes from a rotating spindle at the end of a long shaft topped by a gasoline ...

  4. Gas blending - Wikipedia

    en.wikipedia.org/wiki/Gas_blending

    A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration. The essential component for any breathing gas is a partial pressure of oxygen of between roughly 0.16 and 1.60 bar at the ambient pressure. The oxygen is usually the only metabolically active component unless the gas is an anaesthetic mixture.

  5. Viscosity models for mixtures - Wikipedia

    en.wikipedia.org/wiki/Viscosity_models_for_mixtures

    In a fluid mixture like a petroleum gas or oil there are lots of molecule types, and within this mixture there are families of molecule types (i.e. groups of fluid components). The simplest group is the n-alkanes which are long chains of CH 2-elements. The more CH 2-elements, or carbon atoms, the longer molecule. Critical viscosity and critical ...

  6. Weed Eater - Wikipedia

    en.wikipedia.org/wiki/Weed_Eater

    Weed Eater is a string trimmer company founded in 1971 in Houston, Texas by George C. Ballas, Sr., the inventor of the device. The idea for the Weed Eater trimmer came to him from the spinning nylon bristles of an automatic car wash. He thought that he could come up with a similar technique to protect the bark on trees that he was trimming around.

  7. Wall Street ends about the same after steep decline on Fed's ...

    www.aol.com/wall-street-recovers-steep-decline...

    Wall Street closed Thursday in about the same shape, with the blue-chip Dow managing to eke out a small gain to snap a 10-day losing streak, the longest in 50 years. The Dow ended up 0.4%, or 15. ...

  8. Calibration gas - Wikipedia

    en.wikipedia.org/wiki/Calibration_gas

    A calibration gas is a reference gas or gas mixture used as comparative standard in the calibration of analytical instruments, like gas analysers or gas detectors.Therefore, a calibration gas has to be of a precisely defined nature or composition, like zero gas or span gas, for example 500 ppm carbon monoxide in nitrogen.

  9. Acetylene - Wikipedia

    en.wikipedia.org/wiki/Acetylene

    Approximately 20% of acetylene is supplied by the industrial gases industry for oxyacetylene gas welding and cutting due to the high temperature of the flame. Combustion of acetylene with oxygen produces a flame of over 3,600 K (3,330 °C; 6,020 °F), releasing 11.8 kJ/g. Oxygen with acetylene is the hottest burning common gas mixture. [32]