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Trepanning, also known as trepanation, trephination, trephining or making a burr hole (the verb trepan derives from Old French from Medieval Latin trepanum from Greek trúpanon, literally "borer, auger"), [1] [2] is a surgical intervention in which a hole is drilled or scraped into the human skull.
The rotating crank is typically connected to several cogs that set pressure on the skull. This specific drill is not connected to any external power and is used very little in today's operations. [9] The manual cranial drill is the most used and predominant type of drill in surgery, and performs manually. It has an adjusted stopper based on the ...
A decorative lighting device that projects a gobo. Components from right to left are the lamp house, the gobo itself (in this case a grid made of wires), and the focusing lens. In a theatrical unit, all three would be in an enclosure to prevent light spillage. The insert at lower right shows the pattern this device projects.
A tzompantli, illustrated in the 16th-century Aztec manuscript, the Durán Codex. A tzompantli (Nahuatl pronunciation: [t͡somˈpant͡ɬi]) or skull rack was a type of wooden rack or palisade documented in several Mesoamerican civilizations, which was used for the public display of human skulls, typically those of war captives or other sacrificial victims.
The Texas Longhorn is an American breed of beef cattle, characterized by its long horns, which can span more than 8 ft (2.4 m) from tip to tip. [4] It derives from cattle brought from the Iberian Peninsula to the Americas by Spanish conquistadors from the time of the Second Voyage of Christopher Columbus until about 1512. [ 5 ]
GY6.35 & GZ6.35 – same as G6.35 and only denote what lamp mount clip is needed to hold the actual light bulb in place; G8 – 8 mm (0.31496 in) pin spacing GU8 – same as G8 and only denotes what lamp mount clip is needed to hold the actual light bulb in place; GY8.6 – 8.6 mm (0.33858 in) pin spacing; G9 – 9 mm (0.35433 in) pin spacing
Skull mounts are sometimes referred to as European mounts, western skull mounts, or western mounts. [1] They are a large portion of taxidermy work. Only the skull of the animal is displayed, which will have horns, antlers, or nothing attached to the skull depending on the animal. The mount does not take up much room because of the lack of neck ...