Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 3, 2025
Away to their left appeared Helicon, a ring mountain about 1600 feet high; and still further to the left the eye could catch a glimpse of the cliffs enclosing a semi-elliptical portion of Mare Imbrium, called the Sinus Iridium, or Bay of the Rainbows.
We used platinum, and alloys of platinum and iridium, abandoned them as Edison did more than thirty years later, and then tried a multitude of forms of carbon, including that which constitutes the last "discovery" of Mr. Edison, viz., burnt cane.
Then the metals of one group have an extreme specific gravity platinum being, in fact, the lightest of the three, or as light as the lightest. Osmium has a specific gravity of 21.4, and is the heaviest body in nature; platinum is 21.15, and iridium the same; the specific gravity of the other three being only about half that, namely, 11.3, 12.1, and 11.8.
Tiny corpuscles of different pigments are sometimes hidden in the depths of the chameleon's skin, and sometimes spread out on its surface in an interlacing network of brown or purple. In addition to this prime colouring matter, however, the animal also possesses a normal yellow pigment, and a bluish layer in the skin which acts like the iridium glass so largely employed by Dr.
Upon this shelf a bit of the alloy of two exceedingly hard metals, iridium and osmium, is secured by melting the gold around it; and it is this bit which stands all the wear of rubbing on the paper. When gold pens were first made, tiny bits of diamonds or rubies were soldered on for points; but they were expensive, and they had a disagreeable fashion of falling off.
And now, that done, behold a wonder: at the whirling of a wand the swine of Circe converted back to biped man; whereupon without fail whatsoever he does it shall astonishingly prosper: that succession of wits, seers, savants, Heines, Einsteins, inspired mouths, pens of iridium, brushes from the archangel's plumage, discoveries, new Americas, elations, sensations in therapeutics in aero-nautics- beyond-the-atmosphere in the powers involved in sub-atoms in the powers, latent till now, involved in soul...for now each of millions was free to think, free to manifest his own particular luck and knack in discovery, having a country, foothold, not hovering like Noah's dove, urging still the purposeless wing not to pitch into nowhere: for the promise says: "Ye shall not sow and another reap, ye shall not plant and another garner", but in a land of gentlemen ye shall live, as it were to swellings of music, while a noble height grows upon your smooth foreheads, and the sum-total of the blending movements of your bodies and brains shall, as seen from heaven, appear the minuet of a people.
They were fighting with swords outside the iridium doors, and the moderates of their number were at bay and on the verge of destruction, only ten, indeed, remained unwounded, when the republicans burst in to the rescue.... Section 6
The alloy used for it is iridium, which hardens it, and the more iridium it contains the more difficult it is to work, and consequently the more expensive. When pure, platinum is as soft as silver, but by the addition of iridium it becomes the hardest of metals. The great difficulty in manipulating platinum is its excessive resistance to heat.
We have the names in one of the tables arranged in two columns, representing, as you see, two groups platinum, iridium, and osmium constituting one group; and ruthenium, rhodium, and palladium the other. Three of these have the chemical equivalent of 98-1/2, and the others a chemical equivalent of about half that number.
They've no use for such things normally, because no nearby planet will deal with them or let them land. But they built a space-ship and came here. They went in orbit around Weald. They asked to trade for shiploads of food. They offered any price in heavy metals, gold, platinum, iridium, and so on. They talked from orbit by vision communicators. They could be seen to be blueskins.
Word Of The Day
Others Looking