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Rigge v. Dean exchange on Halley’s Comet and Pope Callixtus III
The Rigge v. Dean exchanges were a series of articles between Fr. William Rigge, S.J. and John Dean debating the historicity of the stories surrounding Pope Calixtus III and Halley's Comet that appeared in Popular Astronomy ...
The Eclipses of 1906
First Paragraph: | During the year 1906 there will be three partial eclipses of the sun and two total eclipses of the moon. One of each class will be visible in the United States.
The Transit of Mercury, November 14, 1907, as Visible in the United States
First Paragraph | The United States will be very unfavorably situated for viewing the coming transit of Mercury on November 14,1907. About one-third of the states will not see the planet at all upon the Sun’s face, and the ...
Is Mars Inhabited?
First Paragraph: | The question as to whether the planet Mars is actually inhabited by a race of intelligent beings is frequently brought to our notice by the press. It is a most interesting question, not only in itself, ...
Some Problems on the Orthographic Projection of the Sphere
First Paragraph | When a sphere is orthographically projected upon a plane, the location of a point on its surface and of its projection upon the plane is determined by certain systems of coordinates, the interrelation of ...
First Paragraph: | Polar triangles are apt to prove most uninteresting to the student of spherical geometry. The cause of this apathy is to be found as well in the want of a globe upon which these triangles may be shown ...
The Opposition of Mars in 1909
First Paragraph: | Of all the heavenly bodies that adorn the starry sky there is none that a- rouses greater interest than the planet Mars. Mars is another earth, another abode, it is believed by many, of intelligent beings ...
Time of Moonrise
First Paragraph | On account of the Moon’s rapid motion both in right ascension and in declination, the computation of the times of the Moon’s rising and setting is apt to prove very laborious, since it cannot be done ...
The Eclipse Expedition of the Creighton University to Washington Georgia
First Paragraph: | Creighton University has contributed its share towards the scientific observation of the total solar, eclipse of May 28, 1900, so far as its means and circumstances permitted. As this great event occurred ...
A Perpetual Calendar in a Nutshell
First Paragraph: | Those of our readers who are interested in calendars will find the annexed little table very serviceable. This table gives within a small space the Dominical letter for every day of the year. As these ...