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Updated: May 12, 2025
The temperature continued to decrease; the mercurial thermometer, which freezes at 42 degrees below zero, was no longer of service, and the spirit thermometer of the Dobryna had been brought into use. This now registered 53 degrees below freezing-point.
Barley ripens as far north as the 70th degree, in latitudes whose mean temperature is below the freezing-point; while in Switzerland, corn ceases to ripen at 9 degrees above the same point, and in the plateaux of South America, at 22-1/2 degrees a fact which goes to shew, 'that the growth of grain is much more dependent on the summer temperature than on the annual mean.
The latter with the juicy fruits, are preserved if necessary for a whole year in storehouses dug in the ground and lined with concrete, in which, by chemical means, a temperature a little above the freezing-point is steadily maintained at very trivial cost.
It is called the absolute zero of temperature, and is estimated to be equivalent to two hundred and seventy-three degrees Centigrade below the freezing-point of water, or ordinary zero.
It was indeed a terrible night. The thermometer registered only a degree or two above freezing-point; and the howling blast, loaded with spindrift and scud-water, seemed to pierce the adventurers to their very marrow, while, notwithstanding the care with which they were wrapped up, the continuous pouring of the sea over them soon wet them to the skin.
The temperature of Mars, with Professor Lowell's data, still comes out far below the freezing-point still further below than the increased distance alone would make it. Indeed, the lower temperature on elevated regions of the earth's surface would lead us to expect this.
In the first place, it was a beautiful day, and so warm that we had on straw hats, duck trowsers, and all the summer gear; and as this was mid-winter, it spoke well for the climate; and we afterwards found that the thermometer never fell to the freezing-point throughout the winter, and that there was very little difference between the seasons, except that during a long period of rainy and south-easterly weather, thick clothes were not uncomfortable.
Such changes are possible only where there is a distinct winter and where storms are of frequent occurrence. The best climate is, therefore, one where the temperature ranges from not much below the freezing-point at night in winter to about 80 degrees F. by day in summer, and where the storms which bring daily changes are frequent at all seasons.
In London, on a damp, foggy, sunless winter's day, when the thermometer is not quite down to freezing-point, the system is so depressed by the atmosphere and the cheerless aspect of the streets, that you feel the cold more acutely than you would do on a sunshiny morning in Moscow with ten degrees of frost. In St. Nevertheless, in St.
Langley's results make it probable that the temperature never rises above the freezing-point of water, and that at the end of the prolonged lunar night of fourteen days it must sink to at least 200 deg. below zero. Mr.
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