Outlines of a mechanical theory of storms : $b containing the true law of lunar influence, with practical instructions to the navigator, to enable him approximately to calculate the coming changes of the wind and weather, for any given day, and for any part of the oceanBassnett, Thomas
Science
Outlines of a mechanical theory of storms : $b containing the true law of lunar influence, with practical instructions to the navigator, to enable him approximately to calculate the coming changes of the wind and weather, for any given day, and for any part of the ocean
Bassnett, Thomas
Weather
At this date, July 7th, 1842, the corona, according to Prof. Airy,
"possibly had a somewhat radial appearance, but not sufficiently marked
to interfere with the general annular structure." Mr. Baily, on the
contrary, says, the corona had the appearance of brilliant rays; and, at
Milan, long jets of light were particularly noticed. There can be no
doubt but that the passage of the radial stream past the outer margin of
the moon must also give rise to the same phenomena as when passing the
sun, and in this we have an explanation of the fact, that, previous to
the moment of first contact, an appearance resembling a
faintly-illuminated limb of the moon, has been perceived near the body
of the sun; as well as of those flashes of light which have been
observed in the lunar disc as the eclipse advances. One important fact,
worthy of note, is, that these luminous streaks are more nearly parallel
than is due to a radiation from the centre. These streaks have, also,
been seen bent at right angles at the middle of their height, as a flame
is by means of a blowpipe, precisely analogous to cometary rays being
driven backwards to form the tail, as already described, thus indicating
a common origin. If the moon had an atmosphere, we should, no doubt, see
a greater display; but, having no rotating vortex to protect her from
the radial stream, her atmosphere must have been long since stripped
off, leaving her exposed to the withering winter blast of the great
stream of the solar vortex. In this connection, we may also allude to
the appearance of the moon when totally eclipsed. Instead of
disappearing at these times, she sometimes shines bright enough to
reveal her smallest spots. This has been generally referred to the
refraction of the earth's atmosphere bending inwards the solar rays. May
it not be owing to the brilliancy of the solar corona, which, in 1842,
was described as so intense that the eye was scarcely able to support
it? This is a far more palpable cause for the production of this
phenomenon, but of which astronomers cannot avail themselves, as long as
they are uncertain of the origin of this corona.
SHOOTING STARS.
Public-domain text, read in full here on John Shaqi.
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