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  2. Siwoloboff method - Wikipedia

    en.wikipedia.org/wiki/Siwoloboff_method

    The Siwoloboff method is used to determine the boiling point of small samples of liquid chemicals. A sample in an ignition tube (also called a fusion tube) is attached to a thermometer with a rubber band, and immersed in a Thiele tube , water bath, or other suitable medium for heating.

  3. Thiele tube - Wikipedia

    en.wikipedia.org/wiki/Thiele_tube

    A Thiele tube can be used to measure the boiling point of a liquid by the Siwoloboff method. A sample in a fusion tube is attached to a thermometer with a rubber band, and immersed in the tube. A sealed capillary, open end pointing down, is placed in the fusion tube. The Thiele tube is heated; dissolved gases evolve from the sample first.

  4. Talk:Siwoloboff method - Wikipedia

    en.wikipedia.org/wiki/Talk:Siwoloboff_method

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  5. File:NASA High Flyers Alphabet Activity Book.pdf - Wikipedia

    en.wikipedia.org/wiki/File:NASA_High_Flyers...

    Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221.; The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies.

  6. Alphabetic principle - Wikipedia

    en.wikipedia.org/wiki/Alphabetic_principle

    The alphabetic principle is the foundation of any alphabetic writing system (such as the English variety of the Latin alphabet, one of the more common types of writing systems in use today). In the education field, it is known as the alphabetic code. [1] [2] [3] [4]

  7. Dewar–Chatt–Duncanson model - Wikipedia

    en.wikipedia.org/wiki/Dewar–Chatt–Duncanson...

    On the right, an empty pi-antibonding orbital on C 2 H 4 overlaps with a filled d-orbital on the metal. The Dewar–Chatt–Duncanson model is a model in organometallic chemistry that explains the chemical bonding in transition metal alkene complexes. The model is named after Michael J. S. Dewar, [1] Joseph Chatt and L. A. Duncanson. [2] [3]

  8. Quikscript - Wikipedia

    en.wikipedia.org/wiki/Quikscript

    Every voiced consonant is written with a deep letter similar in shape to the corresponding voiceless consonant which is written with a tall letter. While the Roman alphabet has two distinct forms for each letter, designated minuscule and majuscule, most letters in Quikscript have only one form. Names and proper nouns are preceded with a mid ...

  9. American manual alphabet - Wikipedia

    en.wikipedia.org/wiki/American_manual_alphabet

    A double letter within a word is signed in different ways, through a bounce of the hand, a slide of the hand, or repeating the sign of a letter. [4] Letters are signed at a constant speed; a pause functions as a word divider. The first letter may be held for the length of a letter extra as a cue that the signer is about to start fingerspelling.

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