enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Moissanite - Wikipedia

   en.wikipedia.org/wiki/Moissanite

   Moissanite (/ ˈmɔɪsəˌnaɪt /) [ 5 ] is naturally occurring silicon carbide and its various crystalline polymorphs. It has the chemical formula SiC and is a rare mineral, discovered by the French chemist Henri Moissan in 1893. Silicon carbide or moissanite is useful for commercial and industrial applications due to its hardness, optical ...

3. Strontium titanate - Wikipedia

   en.wikipedia.org/wiki/Strontium_titanate

   Strontium titanate is considered extremely brittle with a conchoidal fracture; natural material is cubic or octahedral in habit and streaks brown. Through a hand-held (direct vision) spectroscope, doped synthetics will exhibit a rich absorption spectrum typical of doped stones.

4. Posie ring - Wikipedia

   en.wikipedia.org/wiki/Posie_ring

   The rings were also given to show regard or as a gift. [2] The Ashmolean Museum in Oxford, England, has an outstanding collection. The Victoria and Albert Museum in London also has a good collection bequeathed by Joan Evans. She compiled a list of more than 3000 posies for her book English Posies and Posy Rings. A gold posie ring found in Yorkshire

5. Mohs scale - Wikipedia

   en.wikipedia.org/wiki/Mohs_scale

   Mohs scale. The Mohs scale (/ moʊz / MOHZ) of mineral hardness is a qualitative ordinal scale, from 1 to 10, characterizing scratch resistance of minerals through the ability of harder material to scratch softer material. The scale was introduced in 1812 by the German geologist and mineralogist Friedrich Mohs, in his book Versuch einer ...

6. Play Slots Lounge Online for Free - AOL.com

   www.aol.com/games/play/masque-publishing/slots...

   Free premium casino-style slots and classic video poker by the creators of authentic PC & Mac casino slots from IGT, WMS Gaming, and Bally!

7. End-face mechanical seal - Wikipedia

   en.wikipedia.org/wiki/End-face_mechanical_seal

   In mechanical engineering, an end-face mechanical seal (often shortened to mechanical seal) is a type of seal used in rotating equipment, such as pumps, mixers, blowers, and compressors. When a pump operates, the liquid could leak out of the pump between the rotating shaft and the stationary pump casing. Since the shaft rotates, preventing this ...