Description: Here I present you with an Incredible Victorian Circa 1860 astronomy Astrological Space Gravity Gravitational Gyroscope ! This is an early example and definitely museum quality ! Engraved "Negretti & Zambra Instrument Makers to her Majesty LONDON". Negretti & Zambra were a leading name in the production of meteorological and scientific instruments and had a company history dating back to 1850 although their parents were amongst those Italian emigres that bolstered the British meteorological instrument making industry at the turn of the century. They are today perhaps the most collected of the scientific instrument firms which bears testament to the quality of their work. Approximately 24 cm 9.5 inches in height with every part locked into place aka with the pointer facing upwards. The base is approximately 12.2 cm (4 12.5/16 inches) in diameter. The rotating solid heavy cast gilded wheel is approximately 7.9 cm (3 2/16 inches) in diameter. “The Gyrocope – a modification of Bohnenberger’s machine introduced by M Foucault, is an instrument arranged to illustrate the following principles:That inertia is a property of matter in motion, as well as of matter at rest.That orbital and axial motion are intimately related, and that the speed of one may affect or regulate the other.That the state of unstable equilibrium in which many bodies remain is to be explained by the fact of their rotation.That bodies in motion endeavour to maintain their original plane of rotation.That the power of resisting or overcoming the force of gravity possessed by shots fired from Armstrong’s gun is due to the gyratory motion given to them by the peculiar formation of the gun.It will also illustrate the precession of the equinox”.This fine instrument is an early example of their work. The italic engraving is of the type that the company used throughout the 1850’s and 60’s and very unlike the wording used in the catalogue example.Circa 1860. This is the best example of a very early gyroscope, the earliest I have seen in the market since most date to after the 1870s, so historically this one is much more important. Would make an incredible desk top paper weight or decorative piece specially for someone into spacecraft or rockets ! Will continue........ Feel free to check out my other Cool Museum Quality Collection ! Be True & God Bless !
Price: 3880 USD
Location: San Bernardino, California
End Time: 2024-07-26T21:33:51.000Z
Shipping Cost: 58 USD
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