HOME TheInfoList.com
Providing Lists of Related Topics to Help You Find Great Stuff
[::MainTopicLength::#1500] [::ListTopicLength::#1000] [::ListLength::#15] [::ListAdRepeat::#3]

Sundial
A SUNDIAL is a device that tells the time of day by the apparent position of the Sun in the sky . In the narrowest sense of the word, it consists of a flat plate (the _dial_) and a _gnomon _, which casts a shadow onto the dial. As the Sun appears to move across the sky, the shadow aligns with different _hour-lines_, which are marked on the dial to indicate the time of day. The _style_ is the time-telling edge of the gnomon, though a single point or _nodus_ may be used. The gnomon casts a broad shadow; the shadow of the style shows the time. The gnomon may be a rod, wire, or elaborately decorated metal casting. The style must be parallel to the axis of the Earth\'s rotation for the sundial to be accurate throughout the year. The style's angle from horizontal is equal to the sundial's geographical latitude . In a broader sense, a sundial is any device that uses the Sun's altitude or azimuth (or both) to show the time
[...More...]

"Sundial" on:
Wikipedia
Google
Yahoo

Sundial (other)
SUNDIAL or SUN DIAL may refer to: * Sundial
Sundial
, a timekeeping device * Analemmatic sundial , showing more than just the time of day * Digital sundial , with digital display * History of sundials * Scottish sundial , decorative sundials of the renaissance period * Kirkdale sundial
Kirkdale sundial
, Saxon sundial * Whitehurst font-style: italic;">This disambiguation page lists articles associated with the title SUNDIAL. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from "https://en.wikipedia.org/w/index.php?title=Sundial_(other) additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy .® is a registered trademark of the Wikimedia Foundation, Inc
[...More...]

"Sundial (other)" on:
Wikipedia
Google
Yahoo

picture info

Aldeburgh
ALDEBURGH /ˈɔːlbrə/ is a coastal town in the English county
English county
of Suffolk
Suffolk
. Located on the North Sea
North Sea
coast to the north of the River Alde , the town is notable for having been the home of composer Benjamin Britten and as the centre of the international Aldeburgh Festival of arts at nearby Snape Maltings founded by him in 1948. It remains an artistic and literary centre with an annual Poetry Festival and several food festivals as well as other cultural events. It is a former Tudor port and was granted Borough status in 1529 by Henry VIII . Its historic buildings include a 16th-century moot hall and a Napoleonic-era Martello Tower . Second homes make up roughly a third of the town's residential property
[...More...]

"Aldeburgh" on:
Wikipedia
Google
Yahoo

picture info

Boise, Idaho
BOISE (/bɔɪsi/ ( listen ) ) is the capital and most populous city of the U.S. state of Idaho
Idaho
, as well as the county seat of Ada County . Located on the Boise River in southwestern Idaho, the population of Boise at the 2010 Census
Census
was 205,671, the 99th largest in the nation. Its estimated population in 2016 was 223,154. Downtown Boise in Fall 2013 The Boise-Nampa metropolitan area , also known as the Treasure Valley, includes five counties with a combined population of 664,422, the most populous metropolitan area in Idaho. It contains the state's three largest cities; Boise, Nampa , and Meridian . Boise is the third most populous metropolitan area and city in the United States' Pacific Northwest region, behind Seattle and Portland
[...More...]

"Boise, Idaho" on:
Wikipedia
Google
Yahoo

picture info

National Gardens Of Athens
The NATIONAL GARDEN (formerly the ROYAL GARDEN) (Greek : Εθνικός Κήπος) is a public park of 15.5 hectares (38 acres) in the center of the Greek capital, Athens
Athens
. It is located directly behind the Greek Parliament building (The Old Palace) and continues to the South to the area where the Zappeion
Zappeion
is located, across from the Panathenaiko or Kalimarmaro Olympic Stadium
Olympic Stadium
of the 1896 Olympic Games . The Garden also encloses some ancient ruins, tambourines and Corinthian capitals of columns, mosaics , and other features. On the Southeast side are the busts of Ioannis Kapodistrias , the first governor of Greece, and of the Philhellene Jean-Gabriel Eynard . On the South side are the busts of the celebrated Greek poets Dionysios Solomos
Dionysios Solomos
, author of the Greek National Hymn, and Aristotelis Valaoritis
[...More...]

"National Gardens Of Athens" on:
Wikipedia
Google
Yahoo

Greece
GREECE (Greek : Ελλάδα, _ Elláda _ ), officially the HELLENIC REPUBLIC (Greek: Ελληνική Δημοκρατία, _Ellinikí Dimokratía_ ), historically also known as HELLAS ( Ancient Greek : Ἑλλάς, _Hellás_ , modern pronunciation _Ellás_), is a country in southeastern Europe , with a population of approximately 11 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki . Greece is strategically located at the crossroads of Europe, Asia, and Africa
[...More...]

"Greece" on:
Wikipedia
Google
Yahoo

picture info

Time Of Day
An HOUR (symbol : H; also abbreviated HR.) is a unit of time conventionally reckoned as  1⁄24 of a day and scientifically reckoned as 3,599–3,601 seconds , depending on conditions. The SEASONAL, TEMPORAL, or UNEQUAL HOUR was established in the ancient Near East as  1⁄12 of the night or daytime . Such hours varied by season , latitude , and weather . It was subsequently divided into 60 minutes , each of 60 seconds . Its East Asian equivalent was the shi , which was  1⁄12 of the apparent solar day ; a similar system was eventually developed in Europe which measured its EQUAL or EQUINOCTIAL HOUR as  1⁄24 of such days measured from noon to noon. The minor variations of this unit were eventually smoothed by making it  1⁄24 of the mean solar day , based on the measure of the sun's transit along the celestial equator rather than along the ecliptic
[...More...]

"Time Of Day" on:
Wikipedia
Google
Yahoo

picture info

Position Of The Sun
The position of the Sun
Sun
in the sky is a function of both time and the geographic coordinates of the observer on the surface of the Earth
Earth
. As the Earth
Earth
orbits the Sun
Sun
during the course of the year , the Sun appears to move with respect to the fixed stars on the celestial sphere , along a planar path called the ecliptic . The Earth\'s rotation about its axis causes the fixed stars to move across the sky in a way that depends on the observer's geographic latitude . The time when a given fixed star transits the observer's meridian depends on the geographic longitude
[...More...]

"Position Of The Sun" on:
Wikipedia
Google
Yahoo

Sky
The SKY (or CELESTIAL DOME) is everything that lies above the surface of the Earth , including the atmosphere and outer space . In the field of astronomy , the sky is also called the celestial sphere . This is viewed from Earth's surface as an abstract dome on which the Sun , stars , planets , and Moon appear to be traveling . The celestial sphere is conventionally divided into designated areas called constellations . Usually, the term _sky_ is used informally as the point of view from the Earth's surface; however, the meaning and usage can vary. In some cases, such as in discussing the weather , the sky refers to only the lower, more dense portions of the atmosphere. During daylight , the sky appears to be blue because air scatters more blue sunlight than red. At night, the sky appears to be a mostly dark surface or region spangled with stars. During the day, the Sun can be seen in the sky unless obscured by clouds
[...More...]

"Sky" on:
Wikipedia
Google
Yahoo

picture info

Gnomon
A GNOMON (, from Greek γνώμων, gnōmōn, literally: "one that knows or examines" ) is the part of a sundial that casts a shadow . The term has come to be used for a variety of purposes in mathematics and other fields. CONTENTS * 1 History * 2 Pinhole gnomons * 3 Orientation * 4 In popular culture * 5 Footnotes * 6 References * 7 External links HISTORY A gnomon as in Euclid book II A painted stick from 2300 BCE found in China is the oldest known gnomon. Anaximander (610–546 BC) is credited with introducing this Babylonian instrument to the Greeks
Greeks
. Oenopides used the phrase drawn gnomon-wise to describe a line drawn perpendicular to another. Later, the term was used for an L-shaped instrument like a steel square used to draw right angles. This shape may explain its use to describe a shape formed by cutting a smaller square from a larger one
[...More...]

"Gnomon" on:
Wikipedia
Google
Yahoo

picture info

Shadow
A SHADOW is a dark area where light from a light source is blocked by an opaque object. It occupies all of the three-dimensional volume behind an object with light in front of it. The cross section of a shadow is a two-dimensional silhouette , or a reverse projection of the object blocking the light. CONTENTS * 1 Point and non-point light sources * 2 Astronomy * 3 Daytime variation * 4 Propagation speed * 5 Color * 6 Photography * 7 Three-dimensional shadows * 8 Shadow
Shadow
inversions * 9 Analogous concepts * 10 Cultural aspects * 11 Gallery * 12 See also * 13 References * 14 External links POINT AND NON-POINT LIGHT SOURCES Umbra, penumbra and antumbra A point source of light casts only a simple shadow, called an "UMBRA". For a non-point or "extended" source of light, the shadow is divided into the umbra, penumbra and antumbra . The wider the light source, the more blurred the shadow becomes
[...More...]

"Shadow" on:
Wikipedia
Google
Yahoo

picture info

Sun
The SUN is the star at the center of the Solar System
Solar System
. It is a nearly perfect sphere of hot plasma , with internal convective motion that generates a magnetic field via a dynamo process . It is by far the most important source of energy for life on Earth
Earth
. Its diameter is about 109 times that of Earth, and its mass is about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System. About three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen , carbon , neon , and iron . The Sun
Sun
is a G-type main-sequence star (G2V) based on its spectral class . As such, it is informally referred to as a yellow dwarf. It formed approximately 4.6 billion years ago from the gravitational collapse of matter within a region of a large molecular cloud
[...More...]

"Sun" on:
Wikipedia
Google
Yahoo

Diurnal Motion
DIURNAL MOTION (Latin : diurnus, lit. 'daily', from dies, lit. "day") is an astronomical term referring to the apparent daily motion of stars around Earth
Earth
, or more precisely around the two celestial poles . It is caused by the Earth\'s rotation around its axis , so almost every star appears to move along a circular arc path called the DIURNAL CIRCLE. The time for one complete rotation is 23 hours, 56 minutes, and 4.09 seconds (1 sidereal day ). The first experimental demonstration of this motion was conducted by Léon Foucault
Léon Foucault
. RELATIVE DIRECTIONThe relative direction of diurnal motion in the Northern Celestial Hemisphere are as follows: * Facing north, below Polaris
Polaris
: rightward, or eastward * Facing north, above Polaris: leftward, or westward * Facing south: rightward, or westwardThus, northern circumpolar stars move counterclockwise around Polaris , the north pole star
[...More...]

"Diurnal Motion" on:
Wikipedia
Google
Yahoo

picture info

Earth's Rotation
EARTH\'S ROTATION is the rotation of Planet Earth
Earth
around its own axis . Earth
Earth
rotates eastward , in prograde motion . As viewed from the north pole star Polaris
Polaris
, Earth
Earth
turns counterclockwise . The North Pole , also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth's axis of rotation meets its surface. This point is distinct from Earth's North Magnetic Pole
North Magnetic Pole
. The South Pole
South Pole
is the other point where Earth's axis of rotation intersects its surface, in