Pegas puntir
Pegas puntir adalah sebuah pegas yang bekerja dengan memuntir ujung di sepanjang porosnya. Dengan kata lain, ia adalah alat elastis fleksibel yang menyimpan energi mekanis saat alat tersebut dipuntir.
Sebuah perangkap tikus yang ditenagai oleh pegas puntir heliks.
Daftar pustaka
- Gray, Andrew (1888), The Theory and Practice of Absolute Measurements in Electricity and Magnetism, Vol.1, Macmillan, hlm. 254–260. Detailed account of Coulomb's experiment.
- Charles Augustin de Coulomb biography, Chemistry Dept., Hebrew Univ. of Jerusalem, diarsipkan dari versi asli tanggal 2009-08-06, diakses tanggal August 2, 2007. Shows pictures of the Coulomb torsion balance, and describes Coulomb's contributions to torsion technology.
- Nichols, E.F.; Hull, G.F (June 1903), "The Pressure due to Radiation", The Astrophysical Journal, 17 (5): 315–351, Bibcode:1903ApJ....17..315N, doi:10.1086/141035. Describes the Nichols radiometer.
- Torsion balance, Virtual Geoscience Center, Society of Exploration Geophysicists, diarsipkan dari versi asli tanggal 2007-08-18, diakses tanggal 2007-08-04 . Description of how torsion balances were used in petroleum prospecting, with pictures of a 1902 instrument.
- "Charles Augustin de Coulomb", Encyclopædia Britannica, 9th Ed., 6, Werner Co., 1907, hlm. 452
Pranala luar
Wikimedia Commons memiliki media mengenai Torsion springs.
- Torsion balance interactive java tutorial
- Torsion spring calculator
- Big G measurement, description of 1999 Cavendish experiment at Univ. of Washington, showing torsion balance[link broken]
- How torsion balances were used in petroleum prospecting (web archive link)
- Mechanics of torsion springs. Web archive link, accessed December 8, 2016.
- Solved mechanics problems involving springs (springs in series and in parallel)
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