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- Asteroid (24334 bytes)
1: ...steroids are within the [[asteroid belt]], with [[ellipse|elliptical]] orbits between those of [[Mars (plan...
30: ... shape]] was developed by [[Clark R. Chapman]], [[David Morrison]], and [[Ben Zellner]]. These propert...
67: ...t. Multiple pairs could be taken over a series of days. Second, the two [[film]]s of the same region w...
98: ...heir provisional designation, e.g. [[(29075) 1950 DA]].
103: ...such names started to run out, others were used —famous people, literary characters, the names o... - Comet (30542 bytes)
3: ...largely of ice. Comets typically move in highly [[ellipse|elliptical]] orbits, the [[aphelion|aphelia]] of ...
9: ... tail, pointed in slightly different directions — dust being left behind in the comet's orbit (s...
15: ...like [[tar]] or crude [[Petroleum|oil]]. The very darkness of cometary surfaces allows them to absorb ...
29: ...0," the "Great September Comet of 1882," and the "Daylight Comet of 1910." After [[Edmund Halley]] de...
31: ...0 comets and is conducting a contest to guess the date of its 1000th comet discovery.{{hnote|SOHO (200... - History of science (41710 bytes)
4: ...nowledge]]. This change is considered to be so fundamental that older inquiries are known as ''pre-sci...
11: ...dge, and to de-emphasize the view that scientific data is self-evident, value-free, and context-free.
40: ... long period that followed is also known as the [[Dark Ages]]. While the [[Byzantine Empire]] still he...
43: ...[Image:Vitruvian.jpg|right|thumb|140px|[[Leonardo da Vinci]]'s [[Vitruvian Man]], an example of the bl...
46: ...vitalization of Europe. This provided a solid foundation for all future scientific work. Contact with ... - Isaac Newton (23339 bytes)
2: ...sh; [[31 March]] [[1727]] by the [[Gregorian calendar]]) was an [[English (people)|English]] [[physici...
4: ...]]s (such as those of [[comet]]s) were not only [[ellipse|elliptic]], but could also be [[hyperbola|hyperbo...
19: ...eventually became engaged to the apothecary's stepdaughter, Anne Storey, before he went off to [[Cambr...
25: ..., to illustrate how he drew inspiration from everyday events.
31: ...]]. Any fellow of Cambridge or Oxford had to be ordained at the time. However the terms of the Lucasia... - Venus (planet) (31010 bytes)
1: ...ugh all planets' [[planetary orbit|orbits]] are [[ellipse|elliptical]], Venus's orbit is the closest to [[c...
3: ...the "[[Evening Star]]", and when it is visible in dark skies it is by far the brightest [[star]]-like ...
5: ...vilization (the Mayans developed a religious calendar based on Venus's motion) and must have been know...
14: ... the upper atmosphere circle the planet in only 4 days, helping to distribute the heat.
18: ...ture, listed in the table, refers to cloud tops — the surface temperature is never below 400°... - Mars (27704 bytes)
8: ... land because Mars lacks [[ocean]]s). The [[solar day]] on Mars is almost the same length as it is on ...
27: ...Mare Sirenum]] and [[Aurorae Sinus]]. The largest dark feature seen from Earth is [[Syrtis Major]].
31: ...las impact basin at an altitude of 4 km below the datum). In comparison, the difference between Earth'...
39: ... [[mean gravity surface]] must be selected. The [[datum]] for Mars is defined by the fourth-degree and...
41: ...e line of Beer and M䤬er, was chosen by [[Merton Davies]] of the [[RAND Corporation]] to provide a mo... - Sundial (16148 bytes)
7: ...ow on a flat surface marked with the hours of the day.
12: Minor design variations can measure standard and daylight saving time, as well.
16: == Installation of standard sundials ==
18: Tilting the style or [[gnomon]] of a standard sundial is the only practical way to install a ...
22: ...es to the east or west to adjust to the local standard time zone (time zones are 360 degrees/24 hours ... - Wildfire (23185 bytes)
14: ...d severe during years of [[drought]] and occur on days of strong winds. With extensive urbanization of...
16: Today it is accepted that wildfires are a natural part...
18: On occasions, wildfires have caused large-scale damage to [[private property]], particularly when th...
22: ...ted. Not only does this result in severe property damage for those living in the immediate fire area, ...
37: The [[Nevada Bureau of Land Management]] identifies several di... - Arch (4239 bytes)
5: ...que in [[cathedral]] building and is still used today in some modern structures as for example in [[br...
10: ...ontal, such as in arched [[retaining wall]]s or [[dam]]s.
16: ...c architecture]], as in the Great [[Mosque]] of [[Damascus]] and in later [[Moorish]] buildings. It w...
30: ...anning had been incorrect. (The [[A85]] bridge at Dalmally, Scotland suffered this fate on its first a... - White House (15373 bytes)
6: ...m]] for the President's administration, as in, "Today, the White House announced a new health care ini...
12: ...uld be approximately equivalent to $2.4 million today.
20: ...s early as 1798, and the repainting from the fire damage did not originate the term "White House" as a...
30: ... the tradition of annual receptions on New Year's Day and on the Fourth of July. Those receptions ende...
32: ...intments or other favors as he began the business day. Lincoln put up with the annoyance rather than ... - Hipparchus (astronomer) (50785 bytes)
2: ...rho;χος'') (circa [[190 BC]] – circa [[120 BC]]) was a [[Greeks|Greek]] [[ast...
10: ...n province [[Bursa Province | Bursa]]), in what today is [[Turkey]].
14: ... since [[162 BC]] might also be made by him. The date of his birth (circa [[190 BC]]) was calculated ...
18: ...Rhodes]], where he spent most of his later life — Ptolemy attributes observations to him from Rh...
32: ...merides, specifically the collection of texts nowadays called "System B" (sometimes attributed to [[Ki... - Hipparchus (50784 bytes)
1: ...rho;χος'') (circa [[190 BC]] – circa [[120 BC]]) was a [[Greeks|Greek]] [[ast...
9: ...n province [[Bursa Province | Bursa]]), in what today is [[Turkey]].
13: ... since [[162 BC]] might also be made by him. The date of his birth (circa [[190 BC]]) was calculated ...
17: ...Rhodes]], where he spent most of his later life — Ptolemy attributes observations to him from Rh...
31: ...merides, specifically the collection of texts nowadays called "System B" (sometimes attributed to [[Ki... - History of science in the Middle Ages (30877 bytes)
6: ...otype]] of Middle Ages as supposedly "[[Dark Ages|Dark Ages]]".
16: ...y pointing out that the labelling of this era as "dark" was mostly based on previous ignorance about t...
20: ... of dialectic (a discipline that corresponds to today's [[logic]]) was responsible for the rebirth of ...
41: ...ccam]] led him to postulate the principle known today as [[Occam's Razor]]. According to Occam, philos...
43: ...ep towards the modern concept of [[inertia]]. Buridan anticipated [[Isaac Newton]] when he wrote: - North Pole (13759 bytes)
14: ...h-south and near-far axes, on the leading side) —this is the ''leading pole''. At its antipode l...
27: ... stars. This variation had a period of about 435 days and the periodic part of it is now called the [...
29: ... in fact 770 km of ocean between the pole and Canada's northernmost point, and several nations, most n...
47: Canada Post has assigned postal code '''H0H 0H0''' to th...
55: ...], one of the [[Queen Elizabeth Islands]], in Canada. During the 20th century it has moved 1100 km, an...
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