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In the process of their investigation, Cruickshank & Skews developed a full-scale model of the head and a portion of the body of a Diplocaulus, constructed from balsa wood and modelling clay. The model was placed in a wind tunnel , and subjected to several tests to determine drag, lift, and other forces experienced by the head in different ...
A chameleon launching its tongue at its prey. Chameleons, frogs and some lungless salamanders have tongues that act like a tethered projectile. In frogs, the tongue is attached at the front of the mouth and rotates about this attachment as it flips out (thus the top of the tongue at rest becomes the bottom when extended).
The Gashadokuro is a spirit that takes the form of a giant skeleton made of the skulls of people who died in the battlefield or of starvation/famine (while the corpse becomes a gashadokuro, the spirit becomes a separate yōkai, known as hidarugami.), and is 10 or more meters tall.
Blood agents work at the cellular level by preventing the exchange of oxygen and carbon dioxide between the blood and the body's cells. This causes the cells to suffocate from lack of oxygen. [ 2 ] Cyanide-based agents do so by interrupting the electron transport chain in the inner membranes of mitochondria .
In other locking and compliance applications, the body of the Kubotan can be used to create pain. A typical pain compliance technique involves seizing an attacker's wrist and sealing both hands around it with the length of the Kubotan laid across the radius bone. Downward squeezing pressure is applied to the bone to take down the attacker.
An incredible image buried deep in an annual military report released last month shows the U.S. Navy test-firing a high-powered laser weapon at a drone target from one of its warships.. The photo ...
Senegalese Naval Infantry and US Marines practice striking.. A strike is a directed, forceful physical attack with either a part of the human body or with a handheld object (such as a melee weapon), intended to cause blunt or penetrating trauma upon an opponent.