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  2. Briggs–Rauscher reaction - Wikipedia

    en.wikipedia.org/wiki/Briggs–Rauscher_reaction

    The Briggs–Rauscher oscillating reaction is one of a small number of known oscillating chemical reactions. It is especially well suited for demonstration purposes because of its visually striking colour changes: the freshly prepared colourless solution slowly turns an amber colour, then suddenly changes to a very dark blue.

  3. Head-related transfer function - Wikipedia

    en.wikipedia.org/wiki/Head-related_transfer_function

    HRTF filtering effect. A head-related transfer function (HRTF) is a response that characterizes how an ear receives a sound from a point in space. As sound strikes the listener, the size and shape of the head, ears, ear canal, density of the head, size and shape of nasal and oral cavities, all transform the sound and affect how it is perceived, boosting some frequencies and attenuating others.

  4. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...

  5. Carbon filtering - Wikipedia

    en.wikipedia.org/wiki/Carbon_filtering

    Carbon filtering is commonly used for water purification, air filtering and industrial gas processing, for example the removal of siloxanes and hydrogen sulfide from biogas. It is also used in a number of other applications, including respirator masks, the purification of sugarcane, some methods of coffee decaffeination, and in the recovery of ...

  6. Doctors Say Pooping This Many Times a Day Means You ... - AOL

    www.aol.com/lifestyle/doctors-pooping-many-times...

    Meaning, certain organs in their bodies weren’t working at an ideal level when people pooped outside of the normal range. The researchers discovered an ideal amount of BMs that signaled someone ...

  7. Briggs & Stratton Vanguard Big Block V-Twin - Wikipedia

    en.wikipedia.org/wiki/Briggs_&_Stratton_Vanguard...

    Aircraft engine. National origin. United States. Manufacturer. Briggs & Stratton. The Briggs & Stratton Vanguard Big Block V-Twin is a series of American piston engines, designed and produced by Briggs & Stratton of Wauwatosa, Wisconsin for use in commercial applications. They have also been adapted for use as ultralight aircraft engines. [1]

  8. Leo and Sagittarius compatibility: What to know about the 2 ...

    www.aol.com/news/leo-sagittarius-compatibility...

    Expect passion and adventure from a Sagittarius and Leo pairing. Both signs share the element of fire and create explosions wherever they go. They share a love of excitement and spontaneity ...

  9. Filtration - Wikipedia

    en.wikipedia.org/wiki/Filtration

    Filtration is a physical separation process that separates solid matter and fluid from a mixture using a filter medium that has a complex structure through which only the fluid can pass. Solid particles that cannot pass through the filter medium are described as oversize and the fluid that passes through is called the filtrate. [1]