it is known as coil
The flame from the candle produces heat which rises as a current of air. When the current of air hits the spiral and passes through, the sprial acts like it was in wind, and turns.
Tera Bap
A spiral suitcase is not a machine at all. It's just a nightmare to pack.
A screw thread consists of a continuous triangular prism (the thread) wrapped in a spiral round a cylinder. A screw thread may be used to elevate an object in a manner analogous to an inclined plane.
whirlpool, whirlwind, spiral, eddy
How do calculate spiral length of Spiral rings
Formula to calculate length of spiral reinforcement in columns
Electric current through a filament (thin spiral) of tungsten causes it to heat up enough to glow brightly.
My spiral notebook went inside the ocean's Deep current.
It depends on the spiral - there are lots of different ones, with different formulae.
Spiral
lengthofspiralring
Spiral Fracture
A spiral length of something, like a spring.
Select any point in the plane as the origin. From the origin, draw a line of unit length. At its end draw a perpendicular line, also of unit length. This is the first line of the spiral. Join the end of this second line to the origin - this will be a line of length sqrt(2). At the end of this line draw a perpendicular line of unit length. This is the second line of the spiral. Join the end of this new line to the origin - this will be a line of length sqrt(3). At the end of this line draw a perpendicular line of unit length. This is the next line of the spiral. Continue until you have had enough! Or, follow the link.
The hypotenuse of the nth triangle has a length of sqrt(n+1)
The flame from the candle produces heat which rises as a current of air. When the current of air hits the spiral and passes through, the sprial acts like it was in wind, and turns.