Definitions for heliodon
he·liodon

WiktionaryRate this definition:0.0 / 0 votes

1. heliodonnoun

   A mechanical device, used in architecture, for demonstrating the sun's motion relative to a building.

WikipediaRate this definition:0.0 / 0 votes

1. Heliodon

   A heliodon (HEE-leo-don) is a device for adjusting the angle between a flat surface and a beam of light to match the angle between a horizontal plane at a specific latitude and the solar beam. Heliodons are used primarily by architects and students of architecture. By placing a model building on the heliodon’s flat surface and making adjustments to the light/surface angle, the investigator can see how the building would look in the three-dimensional solar beam at various dates and times of day.

WikidataRate this definition:0.0 / 0 votes

1. Heliodon

   A heliodon is a device for adjusting the angle between a flat surface and a beam of light to match the angle between a horizontal plane at a specific latitude and the solar beam. Heliodons are used primarily by architects and students of architecture. By placing a model building on the heliodon’s flat surface and making adjustments to the light/surface angle, the investigator can see how the building would look in the three dimensional solar beam at various dates and times of day. The Earth is a ball in space perpetually intercepting a cylinder of parallel energy rays from the sun. The angle of any earthly site to the solar beam is determined by ⁕The site’s latitude, which gives its position on the curve of the Earth between the Equator and one of the Poles. ⁕The time of day at the site, measured by its progress eastward around the Earth’s axis from sunrise to sunset. ⁕The date, which locates the Earth on its annual orbit of the sun. The change due to date is the most difficult to visualize. The Earth’s axis is steady but tilted: the plane that includes the Earth’s equator, which is perpendicular to the axis, is not parallel to the plane that includes the center of the sun and the center of the Earth, called the ecliptic. Think of the Earth as a car on a Ferris wheel. The car’s axis always points “down”, which changes its relation to the center of the wheel. A light at the center of the wheel would touch the bottom of the car at the top of the orbit and the top of the car at the bottom of the orbit. As the Earth orbits, the location of the centerline of the solar cylinder changes, sliding from the Tropic of Cancer to the Tropic of Capricorn and back again. This changes sun angles all over Earth according to the date. See more at analemma.

How to pronounce heliodon?

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 heliodon in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of heliodon in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of heliodon in Pythagorean Numerology is: 1

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Heliodon
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Heliodon
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=heliodon