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  2. Miracle Piano Teaching System - Wikipedia

    en.wikipedia.org/wiki/Miracle_Piano_Teaching_System

    PC Magazine mentioned the system as being easy to use and likely more patient than a live piano teacher though the system did not cover certain aspects of piano playing such as hand position. [2] The game was reviewed in the Oppenheim Toy Portfolio Guide Book where the authors described it as "by far the highest use a video-game machine has ...

  3. Piano key frequencies - Wikipedia

    en.wikipedia.org/wiki/Piano_key_frequencies

    Values in bold are exact on an idealized standard piano. Keys shaded gray are rare and only appear on extended pianos. The normal 88 keys were numbered 1–88, with the extra low keys numbered 89–97 and the extra high keys numbered 98–108. A 108-key piano that extends from C 0 to B 8 was first built in 2018 by Stuart & Sons. [4]

  4. Piano - Wikipedia

    en.wikipedia.org/wiki/Piano

    Piano Grand piano Upright piano Keyboard instrument Hornbostel–Sachs classification 314.122-4-8 (Simple chordophone with keyboard sounded by hammers) Inventor(s) Bartolomeo Cristofori Developed Early 18th century Playing range The Well-Tempered Clavier, first prelude of Book I Played by Kimiko Douglass-Ishizaka Problems playing this file? See media help. A piano is a keyboard instrument that ...

  5. TNT - Wikipedia

    en.wikipedia.org/wiki/TNT

    Trinitrotoluene spin view. Trinitrotoluene (/ ˌ t r aɪ ˌ n aɪ t r oʊ ˈ t ɒ lj u iː n /), [5] [6] more commonly known as TNT (and more specifically 2,4,6-trinitrotoluene, and by its preferred IUPAC name 2-methyl-1,3,5-trinitrobenzene), [1] is a chemical compound with the formula C 6 H 2 (NO 2) 3 CH 3.

  6. Nitroglycerin - Wikipedia

    en.wikipedia.org/wiki/Nitroglycerin

    Nitroglycerin (NG) (alternative spelling nitroglycerine), also known as trinitroglycerol (TNG), nitro, glyceryl trinitrate (GTN), or 1,2,3-trinitroxypropane, is a dense, colorless or pale yellow, oily, explosive liquid most commonly produced by nitrating glycerol with white fuming nitric acid under conditions appropriate to the formation of the nitric acid ester.

  7. TNT equivalent - Wikipedia

    en.wikipedia.org/wiki/TNT_equivalent

    A kiloton of TNT can be visualized as a cube of TNT 8.46 metres (27.8 ft) on a side. The "megaton (of TNT equivalent)" is a unit of energy equal to 4.184 petajoules (4.184 × 10 15 J). [3] The kiloton and megaton of TNT equivalent have traditionally been used to describe the energy output, and hence the destructive power, of a nuclear weapon.

  8. Undertale Yellow - Wikipedia

    en.wikipedia.org/wiki/Undertale_Yellow

    Undertale Yellow is a 2D role-playing video game released on Game Jolt for Microsoft Windows on December 9, 2023. Developed by Team Undertale Yellow as a fan-made prequel to Undertale, the game follows a human child named Clover, who possesses the yellow soul from Undertale, as they journey on an unfamiliar path to the surface after entering the monster-inhabited Underground. [1]

  9. Nitrotriazolone - Wikipedia

    en.wikipedia.org/wiki/Nitrotriazolone

    Nitrotriazolone is being progressively made use of in novel explosive formulations, such as IMX-101, a new, safer alternative to TNT specially devised in 2010 by BAE Systems, where it is combined with 2,4-dinitroanisole (DNAN) and nitroguanidine. As such, NTO is found in the vast majority of IMX formulations.