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Many attempts have been made to produce power directly from the sun through solar engines, or by concentrating it in furnaces. At the St. Louis Exposition a few years ago, a Portuguese priest exhibited a solar engine called a heliophore, in which, by means of the sun's rays, the temperature was raised to 6000 degrees F., and a cube of iron placed in it melted like a snowball.
In the case of the pink cubes the edge increases according to the numerical series, i.e., the first cube has an edge of one centimeter, the second of two centimeters, the third of three centimeters, and so on, to the tenth cube, which has an edge of ten centimeters.
There is good reason to believe that the appreciation of solidity by the eye is purely a matter of education. Cheselden's patient thought "all objects whatever touched his eyes, as what he felt did his skin." The patient whose case is reported by Müller could not tell the form of a cube held obliquely before his eye from that of a flat piece of pasteboard presenting the same outline.
The room in which her first Council took place is below the Cube Room. No wonder that Queen Victoria had always a tender memory of Kensington Palace.
It seemed to contain pieces of bread. Joe touched the edge of the plate to a flame of one of the candles. In an instant the plate was ablaze, and Joe calmly began putting the blazing stuff on it into his mouth. Cube after cube of the blazing "bread" he lifted up on a fork and thrust between his lips. And he seemed to enjoy the "eating" of it. The audience was spellbound.
He gave a solution of the problem of the duplication of the cube, and applied his geometrical knowledge to the measurement of the magnitude of the earth, being one of the first who brought mathematical methods to the aid of astronomy, which in our day is almost exclusively the province of the mathematician.
She put her elbows on the table, rested her head wearily upon her hands, shook her head. He desisted. When he had eaten all of the steak, except the fat and the gristly tail, and nearly all the potatoes, the waiter took the used dishes away and brought two generous slices of apple pie and set down one before each. With the pie went a cube of American cream or "rat-trap" cheese.
As he spoke he was striking a light in a little French box containing a cube of jade, and with very little noise he lit two candles standing on the high oak desk. Dolly drew a curtain across the window, and then went softly to the door, which opened opposite the corner of a narrow passage, and made pretence to bolt it, but shot the bolt outside the socket.
That lead block up there " The man motioned with his head toward a one-foot cube suspended by a thick cable. "It's rigged to drop every now and again. Averages five minutes. A warning light flashes first. You can take a chance; sometimes the light's a bluff. You can set the clock back on it by dropping another chip or you can let go the grip." Retief looked at the massive block of metal.
"What an abominable construction," he thought, contemplating the church. "Think. That cube flanked by two towers presumes to invite comparison with the façade of Notre Dame. What a jumble," he continued, examining the details. "From the foundation to the first story are Ionic columns with volutes, then from the base of the tower to the summit are Corinthian columns with acanthus leaves.
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