Definitions for dipleidoscope
diplei·do·scope

WikipediaRate this definition:0.0 / 0 votes

1. Dipleidoscope

   A dipleidoscope is an instrument used to determine true noon; its name comes from the Greek for double image viewer. It consists of a small telescope and a prism that creates a double image of the sun. When the two images overlap, it is local true noon. The instrument is capable of determining true noon to within ten seconds. The dipleidoscope was invented by Giovanni Battista Amici in the first half of the 19th century. Edward John Dent, a chronometer and clockmaker in London, was working in the 1830s on a simple contrivance that would allow the public to set clocks correctly based on the transit of the sun (more complex and expensive transit telescopes had been developed by Ole Rømer in 1690). By 1840 he felt he had come to a suitable design using shadows, however when he communicated his ideas to Mr J.M. Bloxam (a barrister), he found he had also been working on his own design using reflections, which Dent felt was superior. The two formed a partnership and worked together on the device, and after a further 2 years work they finalised the design and patented it (GB Patent 9793 of 1843), with Mr Dent manufacturing and selling it as Dent's Dipleidoscope. The instrument could use the moon as well as the sun and when correctly calibrated and aligned the accuracy was said to be less than a second. Dent exhibited the device at the Great Exhibition of 1851. After Edward Dent died in 1853, his son Frederick William Dent took over manufacture. The significance of this device relates in part to the development of the railways, when an absolute knowledge of the time became more important, whereas previously it was often sufficient that an entire rural community would use the parish clock, and this would periodically be set by 'the announcement of the guard of the mail coach' or similar. The instrument came with a detailed instruction booklet, which had a substantial section on correcting local time to Greenwich Mean time (as used by the railways).

Webster DictionaryRate this definition:0.0 / 0 votes

1. Dipleidoscopenoun

   an instrument for determining the time of apparent noon. It consists of two mirrors and a plane glass disposed in the form of a prism, so that, by the reflections of the sun's rays from their surfaces, two images are presented to the eye, moving in opposite directions, and coinciding at the instant the sun's center is on the meridian

2. Etymology: [Gr. double + image + -scope.]

WikidataRate this definition:0.0 / 0 votes

1. Dipleidoscope

   A dipleidoscope is an instrument used to determine true noon. It consists of a small telescope and a prism that creates a double image of the sun. When the two images overlap, it is local true noon. The instrument is capable of determining true noon to within ten seconds. The dipleidoscope was invented by Giovanni Battista Amici in the first half of the 19th century.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Dipleidoscope

   di-plī′dō-skōp, n. an instrument for ascertaining the moment of passage of the sun or a star over the meridian. [Formed from Gr. diploos, double, eidos, appearance, skopein, to view.]

How to pronounce dipleidoscope?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say dipleidoscope in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of dipleidoscope in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of dipleidoscope in Pythagorean Numerology is: 6

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Dipleidoscope
2. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/dipleidoscope
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=dipleidoscope
4. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=dipleidoscope