Halos sentence example
Here it is only necessary to distinguish halos from coronae.
Halos was added to the number of Early Iron Age sites in Thessaly in 1912 (Wace and Thompson).
That Newton must have begun early to make careful observations of natural phenomena is sufficiently testified by the following remarks about halos, which appear in his Optics, book ii.
The chromatic halos which frequently encircle these images are due to diffraction.
The two halos are the only phenomena which admit of explanation without assigning any particular distribution to the ice-crystals.Advertisement
In the first class we have halos, and coronae, or "glories," which encircle the luminary; the second class includes rainbows, fog-bows, mist-halos, anthelia and mountainspectres, whose centres are at the anti-solar point.
Formerly classified by the ancient Greeks with halos, rainbows, &c., under the general group of "meteors," they came to receive considerable attention at the hands of Descartes, Christiaan Huygens, and Sir Isaac Newton; but the correct explanation of coronae was reserved until the beginning of the 19th century, when Thomas Young applied the theories of the diffraction and interference of light to this phenomenon.
Prior to Young, halos and coronae had not been clearly differentiated; they were both regarded as caused by the refraction of light by atmospheric moisture and ice, although observation had shown that important distinctions existed between these phenomena.
Thus, while halos have certain definite radii, viz.
These appear ancos differ from halos and coronae inasmuch as their centres are at the anti-solar point; they thus resemble the rainbow.Advertisement
The circumzenithal arc is the most beautiful of all the halos.
One plug-in, included with the program, is the Fire plug-in, which lets you create fiery halos around your text.
The coating can shrink light halos, keep your eyes from tiring too rapidly and allow people to see through your lenses--and right into your eyes--with no light reflecting back at them.
Halos may be present but not nearly as large, and the patient will normally need reading glasses or bifocals later, but the prescription for seeing things far away will not be nearly as strong.
Buy feathered angel wings from the craft store and glue them over the ribbon folds, then twist gold pipe-cleaners into halos and place them on the dolls' heads.Advertisement
Angels, or course, wear white and have wings and halos, which can be purchased or made of wire and gold tinsel.
Besides skin discoloration, small sores will appear in the rash, and temporary halos will appear around the sores if they are pressed.
Luminous arcs (T), tangential to the upper and lower parts of each halo, also occur, and in the case of the inner halo, the arcs may be prolonged to form a quasi-elliptic halo.1 The physical explanation of halos originated with Rene Descartes, who ascribed their formation to the presence of icecrystals in the atmosphere.
The impurity of the colours (due partly to the sun's diameter, but still more to oblique refraction) is more marked in halos than in rainbows; in fact, only the red is at all pure, and as a rule, only a mere trace of green or blue is seen, the external portion of each halo being nearly white.