Design
The Fire Arrow was the first rocket in mechanism and design. It was made in a variety of forms and launched in diverse manners, but the first design consisted of a pouch of black powder with a stick attached; the arrows were launched from a stand of bamboo sticks. Like the fins on a modern rocket, the long stick on a fire arrow increases stability and therefore accuracy. (It works by causing the center of drag to be far behind the center of mass, so that atmospheric drag keeps the arrow oriented toward its direction of travel.)
Chinese and Korean fire arrows were usually launched in salvoes from launch platforms such as arrays of cylinders or boxes which could hold as many as 1,000 fire arrows each. The fire arrows propelled by gunpowder may have had a range of up to 1,000 feet.
Fire arrows were tipped with flammable materials like pitch, bitumen or resin.
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Famous quotes containing the word design:
“A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering.”
—Freeman Dyson (b. 1923)
“Westerners inherit
A design for living
Deeper into matter—
Not without due patter
Of a great misgiving.”
—Robert Frost (1874–1963)
“Humility is often only the putting on of a submissiveness by which men hope to bring other people to submit to them; it is a more calculated sort of pride, which debases itself with a design of being exalted; and though this vice transform itself into a thousand several shapes, yet the disguise is never more effectual nor more capable of deceiving the world than when concealed under a form of humility.”
—François, Duc De La Rochefoucauld (1613–1680)