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In ancient Greek medicine, each of the four humours became associated with an element. Blood was the humor identified with air, since both were hot and wet. Other things associated with air and blood in ancient and medieval medicine included the season of spring, since it increased the qualities of heat and moisture; the sanguine temperament (of a person dominated by the blood humour ...
[186] [187] Old glass which is thicker at the bottom than at the top comes from the production process, not from slow flow; [186] [187] no such distortion is observed in other glass objects of similar or even greater age. [186] [187] [188] Diamonds are not formed from highly compressed coal.
Daimon Hellstrom's trident is made of Netheranium, which enables him to fly and manipulate mystical energy. Netherite Minecraft: An ancient fireproof alloy made from gold and netherite scraps, which are smelted from debris found in the Nether dimension. When combined with diamond equipment, the metal creates the game's strongest weapons and armor.
For many centuries metal such as gold often combined with gemstones, has been the normal material for jewellery, but other materials such as glass, shells and other plant materials may be used. Jewellery is one of the oldest types of archaeological artefact – with 100,000-year-old beads made from Nassarius shells thought to be the oldest ...
Aristotle added a fifth element, aether (αἰθήρ aither), as the quintessence, reasoning that whereas fire, earth, air, and water were earthly and corruptible, since no changes had been perceived in the heavenly regions, the stars cannot be made out of any of the four elements but must be made of a different, unchangeable, heavenly ...
Artemis's chariot, it was made of gold and was pulled by the four golden-horned deer she caught. The bridles of her chariot were also made of gold. Cabeiri's chariot, drawn by metallic, fire-breathing horses. Dionysus's chariot, drawn by panthers. Eos's chariot, drawn by two horses. Hades's chariot, golden chariot drawn by four black horses.
Trinitite, in common with several similar naturally occurring minerals, is a melt glass. [46] While trinitite and materials of similar formation processes such as lavinite are anthropogenic, fulgurites , found in many thunderstorm -prone regions and in deserts , are naturally-formed, glassy materials and are generated by lightning striking ...
Optical fibers, usually made of pure silicon dioxide glass, with additives such as boron trioxide or germanium dioxide for increased sensitivity. The oxides B 2 O 3, SiO 2, GeO 2, As 2 O 3, and Sb 2 O 3 readily form glasses. TeO 2 forms a glass but this requires a "heroic quench rate" [163] or the addition of an impurity; otherwise the ...