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The basic drafting procedure is to place a piece of paper (or other material) on a smooth surface with right-angle corners and straight sides—typically a drawing board. A sliding straightedge known as a T-square is then placed on one of the sides, allowing it to be slid across the side of the table, and over the surface of the paper.
An overwrap or wrap is a method of sealing a contained product, typically as part of retail packaging. It is often made of plastic film (sometimes called polywrapping) or paper. [1] The wrap is applied over the bare product or can be applied over another form of packaging. It is typically used to protect products, but can be used decoratively.
Contour drawing – Chiaroscuro – using strong contrasts between light and dark to achieve a sense of volume in modeling three-dimensional objects such as the human body. Gesture Drawing - loose drawing or sketching with the wrists moving, to create a sense of naturalism of the line or shape, as opposed to geometric or mechanical drawing ...
In 2016, a SpaceX Falcon 9 rocket exploded on the pad due to the failure of a COPV inside the liquid oxygen tank: [10] the failure resulted from accumulation of frozen solid oxygen between the COPV's aluminum liner and composite overwrap in a void or buckle. The entrapped oxygen can either break overwrap fibers or cause friction between fibers ...
Drafting or technical drawing is the means by which mechanical engineers design products and create instructions for manufacturing parts. A technical drawing can be a computer model or hand-drawn schematic showing all the dimensions necessary to manufacture a part, as well as assembly notes, a list of required materials, and other pertinent ...
An illustration of why sloped armour offers no weight benefit when protecting a certain frontal area. Comparing a vertical slab of armour (left) and a section of 45° sloped armour (right), the horizontal distance through the armour (black arrows) is the same, but the normal thickness of the sloped armour (green arrow) is less.
The concept was designed while Leonardo da Vinci was under the patronage of Ludovico Sforza in 1487. [2] Sometimes described as a prototype of modern tanks, Leonardo's armored vehicle represented a conical cover inspired by a turtle's shell. The covering was to be made of wood and reinforced with metal plates.
A liquid hitting a wall in a container will cause sloshing. The free surface effect is a mechanism which can cause a watercraft to become unstable and capsize. [1]It refers to the tendency of liquids — and of unbound aggregates of small solid objects, like seeds, gravel, or crushed ore, whose behavior approximates that of liquids — to move in response to changes in the attitude of a craft ...