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Unlike natural petrification, though, they infiltrated samples in acidic solutions, diffused them internally with titanium and carbon and fired them in a high-temperature oven (circa 1400 °C) in an inert atmosphere to yield a man-made ceramic matrix composite of titanium carbide and silicon carbide still showing the initial structure of wood ...
Hematite (/ ˈ h iː m ə ˌ t aɪ t, ˈ h ɛ m ə-/), also spelled as haematite, is a common iron oxide compound with the formula, Fe 2 O 3 and is widely found in rocks and soils. [6] Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of Fe 2 O 3. It has the same crystal structure as corundum ...
Iron(III) oxide was the most common magnetic particle used in all types of magnetic storage and recording media, including magnetic disks (for data storage) and magnetic tape (used in audio and video recording as well as data storage). Its use in computer disks was superseded by cobalt alloy, enabling thinner magnetic films with higher storage ...
The post 20 Hard-to-Kill Houseplants Anyone Can Grow appeared first on Reader's Digest. Don't worry! These low-maintenance plants will stay green with even the tiniest bit of TLC.
Some of the dead gunmen appeared to have made a last stand inside a low, circular pile of stones. Drug cartels in Mexico frequently make videos of dead or captured gang members to intimidate or ...
Vampire killing kit at the Royal Armouries. A vampire killing kit is a box containing various items commonly associated with killing vampires. [1] While often presented as 19th-century items, they are believed to date to the second half of the 20th century at the earliest.
Globally, iron ore is most commonly found in banded iron formations (BIFs) in the form of magnetite (Fe 3 O 4), hematite (Fe 2 O 3), goethite (FeO(OH)), limonite (FeO(OH)·n(H 2 O)) or siderite (FeCO 3). [7] Hematite and magnetite are the most common types of Iron ore. Roughly 98% of iron ore on the global market is used in iron and steel ...
The wood is desirable for veneers and furniture. An investigator went to a nearby sawmill, where he found a log matching the dimensions and appearance of one of the stumps, but wanted to be sure.