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  2. Speedcore - Wikipedia

    en.wikipedia.org/wiki/Speedcore

    The term speedcore in reference to high tempo hardcore/gabber can be traced as far back as 1995. [7] [8] Disciples Of Annihilation coined the name of the genre with their track "NYC Speedcore". [4] Belgian artist DJ Einrich refined the sound in the late 1990s, using oscillators to transform fast kick drums into notes in octaves. [5]

  3. Speed of sound - Wikipedia

    en.wikipedia.org/wiki/Speed_of_sound

    However, in the ocean, there is a layer called the 'deep sound channel' or SOFAR channel which can confine sound waves at a particular depth. In the SOFAR channel, the speed of sound is lower than that in the layers above and below.

  4. PPG Wave - Wikipedia

    en.wikipedia.org/wiki/PPG_Wave

    PPG Wave 2.2 front panel. PPG's Wave series represents an evolution of its predecessor by combining its digital sound engine with analog VCAs and 24db per octave VCFs, featuring 8-voice polyphony; and by replacing its nontraditional series of push buttons and sliders with a control panel consisting of an LCD and a more familiar arrangement of knobs.

  5. Orders of magnitude (frequency) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    60 bpm, common tempo in music 2 Hz: 120 bpm, common tempo in music ~7.83 Hz: Fundamental frequency of the Schumann resonances: 10 1: 10 hertz 10 Hz: Cyclic rate of a typical automobile engine at idle (equivalent to 600 rpm) 12 Hz: Acoustic – the lowest possible frequency that a human can hear [3] 18 Hz: Average house cat's purr 24 Hz

  6. Factbox-Who received the longest jail terms in the Gisele ...

    www.aol.com/news/factbox-received-longest-jail...

    A French court found all 51 defendants guilty on Thursday in a mass rape case including Dominique Pelicot, who repeatedly drugged his then wife, Gisele, and allowed dozens of strangers into the ...

  7. Acoustic wave - Wikipedia

    en.wikipedia.org/wiki/Acoustic_wave

    An acoustic wave is a mechanical wave that transmits energy through the movements of atoms and molecules. Acoustic waves transmit through fluids in a longitudinal manner (movement of particles are parallel to the direction of propagation of the wave); in contrast to electromagnetic waves that transmit in transverse manner (movement of particles at a right angle to the direction of propagation ...

  8. Acoustic metamaterial - Wikipedia

    en.wikipedia.org/wiki/Acoustic_metamaterial

    An acoustic metamaterial, sonic crystal, or phononic crystal is a material designed to control, direct, and manipulate sound waves or phonons in gases, liquids, and solids (crystal lattices). Sound wave control is accomplished through manipulating parameters such as the bulk modulus β, density ρ, and chirality. They can be engineered to ...

  9. 5 Items From the 1970s That Are Worth a Lot of Money - AOL

    www.aol.com/5-items-1970s-worth-lot-170007423.html

    Here are some examples of what just basic vintage games could make you if you sell them. Space Invaders (Atari 2600, 1978): $75 to $1,450 Pong (original Atari Pong C-100, 1972): $100 to $150