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Now the energy of the power units on the roof of the machine began to slow down the two machines, the magnet grinding slightly as the momentum of the plane was thrust upon it. They watched the speedometer drop. The speed was sinking very slowly, for the area of the absorbing fins was not designed to absorb the sun's heat directly, and was very inefficient.

In attending a sick person, place yourself where the air passes from the door or window to the bed of the diseased, not betwixt the diseased person and any fire that is in the room, as the heat of the fire will draw the infectious vapour in that direction, and you would run much danger from breathing in it.

As widely different as night is from day, summer from winter, heat from cold, are some members of the human family; yet God made them all, and has a purpose of love and mercy towards each!

The herd behind grew closer and closer. Presently the walk broke into a short trot, the horns of the following bunch of steers appeared at Kit's flanks, a rumbling as of half-uttered bellows was heard from the rear of the herd, and, on the instant, the steers began to run. Brush on ground is to shade tender seedlings from the heat of the sun.

What was once called the conservation of force is now called the conservation of energy, and we now often hear of forms of energy. Thus, heat is said to be a form of energy, and the forms of energy are convertible into one another, as the so-called forces were formerly supposed to be transformable into one another.

They built a hut of boughs, making the corners of four saplings which they cut off at the proper height, where they formed a crotch supporting strong poles, across which other poles were laid, and which they covered with hemlock boughs; this again was covered with bark they had detached from fallen trees, and which made a good defence against heat or rain.

You will find in your greenhouses exotics that stand there, after all your pains and coals, stunted, and seeming to sigh for the tropical heat which is their home.

Drop, then, for a moment all thought of tides, and let us bring to our aid the laws of heat, which will disclose certain facts in the ancient history of the earth-moon system perhaps as astounding as those to which the tides have conducted us.

These two associates engaged themselves in the penalty of six thousand pounds, to run one chaise and four against another, three times round the course; and our adventurer had the satisfaction of seeing his antagonist distanced in the first and second heat; but, all of a sudden, one of the horses of his machine was knocked up, by which accident the victory was ravished almost from his very grasp, and he was obliged to endure the damage and the scorn.

It was half-past five, the sun had risen, radiant in the pure sky of a delightful morning. It was a Friday, the 19th of August. On the horizon, however, some small, heavy clouds already presaged a terrible day of stormy heat. And the oblique sunrays were enfilading the compartments of the railway carriage, filling them with dancing, golden dust.