Word Finder - equatorial

definition

A kind of telescope mounted so as to have two axes of motion at right angles to each other, one of them parallel to the axis of the Earth, and each carrying a graduated circle, one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known.

definition

Of, near, or relating to the equator

example

That plant is best suited to equatorial climates.

definition

Perpendicular to the plane of a ring

The concentration of these substances is least in the warm equatorial seas and greatest near the poles.

From the surface to 500 fathoms the general form of the isothermals remains the same, except that instead of an equatorial maximum belt there is a focus of maximum temperature off the eastern coast of the United States.

A map was attached on which several great equatorial lakes are shown, and the empire of Monomwezi or Unyamwezi is laid down.

The North Equatorial Current is due to the action of the north-east trades.

Buchanan pointed out in 1876, that the great contrasts in surface salinity between the tropical maxima and the equatorial minima give place at the moderate depth of 200 fathoms to a practically uniform salinity in all parts of the ocean.

The South Equatorial Current is produced by the southeast trades, and is more vigorous than its northern counterpart.

It is common throughout equatorial Africa.

At distances greater than this it is impossible to see anything clearly in these equatorial forests, and it is very difficult to do so even at this short distance.

Hot desert conditions are primarily found along the tropical belts of high atmospheric pressure in which the conditions of warmth and dryness are most fully realized, and on their equatorial sides, but the zonal arrangement is considerably modified in some regions by the monsoonal influence of elevated land.

There was no prospect of further territory in Equatorial Africa, and the hope of bringing about a closer union with the South African Republic was not fulfilled.

That town was captured, after an obstinate defence, on the 17th of January 1883, by which time almost the whole of the Sudan south of Khartum was in open rebellion, except the Bahr-elGhazal and the Equatorial provinces, where for a time Lupton Bey and Emin Pasha were able to hold their own.

Equatoria.In the Equatorial Province, which extended from the Albert Nyanza to Lado, Emin Bey, who had a force of 1300 Egyptian troops and 3000 irregulars, distributed aniong many stations, held out, hoping for reinforcdments.

But their influence, especially that of the missionaries, is felt in every part of the protectorate, and in few parts of equatorial Africa have the natives more readily responded to European influences.

Its shrines and monasteries stretched in a continuous line from the Caspian to the Pacific, and still extend from the confines of the Russian empire to the equatorial archipelago.

Fraunhofer's chef-d'oeuvre, the great Dorpat refractor, made for Otto Struve about 1820, had a mounting of this type, and was the first equatorial of any importance to be provided with clockwork.

About 1840 a great advance was made by the Repsolds of Hamburg in the equatorial mounting of the Oxford heliometer.

The chief defect in equatorial mountings of type C is that in general they are not capable of continued observing much past the meridian without reversal.

Sir David Gill tested the equatorial coude on double stars at the Paris Observatory in 1884, and his last doubts as to the practical value of the instrument were dispelled.

The instrument in some respects resembles the equatorial equatorial coude of Loewy, but instead of two mirrors Camp there is only one.

Thus, as in the equatorial coude, the observer remains in a fixed position looking down the polar tube from above.

The mirrors of Lindemann's equatorial coude reflecting light downwards upon the mirror R would furnish an ideal siderostat for stellar spectroscopy in conjunction with a fixed horizontal telescope.

The mountain sparrow (Passer montana) is abundant in Java and Singapore in a uniform equatorial climate, and also inhabits Britain and a considerable portion of northern Europe.

But we have the same phenomenon in single varieties of man, such as the American, which inhabits alike the frozen wastes of Hudson's Bay and Tierra del Fuego, and the hottest regions of the tropics, - the low equatorial valleys and the lofty plateaux of the Andes.

Now there is a zone of the equatorial Andes, ranging between about 4000 and 6000 feet altitude, where the very best flavoured coffee is grown, where cane is less luxuriant but more saccharine than in the plains, and which is therefore very desirable to cultivate, but where the red man sickens and dies.

By the Nile waterways there is easy transport from the southern and western equatorial provinces and from Sennar and other eastern districts.

At the extreme south, where Chilean territory extends across to the Atlantic entrance to the Straits of Magellan, a new climatic influence is encountered in the warm equatorial current flowing down the east coast of South America, which gives to eastern Tierra del Fuego a higher temperature than that of the western shore.

This came to him in the following year, when General Charles George Gordon, who had recently succeeded Sir Samuel Baker as governor of the equatorial provinces of Egypt, invited Schnitzer, who was now known as "Emin Effendi," to join him at Lado on the upper Nile.

Guayaquil sarsaparilla is obtained chiefly in the valley of Alausi, on the western side of the equatorial Andes.

In 1871 Baker, then governor-general of the equatorial provinces of Egypt, established a military post at Gondokoro which he named Ismailia, after the then khedive.

It is the largest fragment within the colony of the immense forest which at one time seems to have covered the whole equatorial region.

Situated in the equatorial zone, Belgian Congo shows, over the greater part of its area, only a slight variation of temperature all the year round.

They are carried across the disk by the sun's rotation, partaking in the equatorial acceleration; they also show marked displacements of their own, whether with, or relative to, the neighbouring photosphere does not appear; at the beginning of their life they usually outrun the average daily rotation appropriate to their latitude.

But this theory gives no clue to the results relating to hydrogen, which belongs to a high level, and which Adams has shown to move with an angular velocity decidedly greater than the equatorial angular velocity below it, and not to show any sign of falling off towards the poles.

Better determinations of the actual value came from the heliometer, and gave an angular diameter of 31' 59.26" =0.10", and the value of the polar diameter exceeded the equatorial by 0.038" =0.023".

A considerable part of the republic is covered by the equatorial belt of calms, whose oscillations divide the year into a wet and dry season.

The equatorial current, on meeting the northern extremity of Madagascar, sends a branch southwards along the east coast of that island, sometimes called the Mascarene current.

When the main equatorial current reaches the African coast a minor stream is sent northwards to the source of the Indian counter-current, but the discharge is chiefly by the Mozambique current, which south of Cape Corrientes becomes the Agulhas current, one of the most powerful stream currents of the globe.

In the case of the southern continents the difficulty is, however, to determine whether allied groups of mammals (and other animals) have reached their present isolated habitats by dispersal from the north along widely sundered longitudinal lines, or whether such a distribution implies the former existence of equatorial land-connexions.

Meanwhile Airy had in July suggested to Challis that the planet should be sought for with the Cambridge equatorial.

A system of equatorial co-ordinates may also be used when the origin is on the earth's surface.

The vernal equinox is taken as the initial point on the sphere from which co-ordinates are measured in the equatorial and ecliptic systems. Referring to fig.

But, in consequence of the centrifugal force generated by the rotation, it assumes a spheroidal form, the equatorial regions bulging out.

If a planet rotates on its axis so rapidly as to have a considerable ellipticity, and if it has satellites revolving very near the plane of the equator, the combined actions of the sun and of the equatorial protuberances may be such that the whole system will rotate almost as if the planes of revolution of the satellites were solidly fixed to the plane of the equator.

In the measurement of equatorial co-ordinates, the polar distance is determined in an analogous way.

In the equatorial system this co-ordinate (the right ascension) is measured in a different way, by making the rotating earth perform the function of a graduated circle.

The region was claimed as part of the Egyptian Sudan, but it was not until the arrival of Sir Samuel Baker at Gondokoro in 1870 as governor of the equatorial provinces, that any effective control of the slave traders was attempted.

In 1878 Emin Pasha became governor of the Equatorial Province, a term henceforth confined to the region adjoining the main Nile above the Sobat confluence, and the region south of the Bahr-el-Ghazal province.

Flowing first south, it afterwards turns north through Lake Mweru and descends to the forest-clad basin of west equatorial Africa.

Within the equatorial zone certain areas, especially on the shores of the Gulf of Guinea and in the upper Nile basin, have an intensified rainfall, but this rarely approaches that of the rainiest regions of the world.

The two distinct rainy seasons of the equatorial zone, where the sun is vertical at half-yearly intervals, become gradually merged into one in the direction of the tropics, where the sun is overhead but once.