"Spiral" is a general term describing a circular pathway in space. Without getting into mathematical formulas to describe the different types of spirals suffice it to say that, at the high school level, a spiral, as in the case of a whirlpool, can be seen to have a decreasing diameter along the medial axis of the spiral. In contrast, the diameter of a helix, such as a DNA molecule, is uniformly constant. Wrap a wire around a cone and then remove the cone; the shape of the wire is representative of a spiral. Wrap a wire around a cylinder and then remove the cylinder; the shape of the wire is representative of a helix. Pakrutoy
That describes a screw or a bolt, or a similar device.
A helicoid. The outer edge is a helix but since it is a plane, not a line, it becomes a helicoid.
The mathematical term that refers to a spiral is "spiral" itself, but there are specific types, such as the "Archimedean spiral," which is characterized by a constant distance between successive turns, and the "logarithmic spiral," where the distance between turns increases exponentially. Spirals can be described using polar coordinates, where the radius is a function of the angle. They are commonly found in nature, art, and various fields of mathematics.
x = A*cos(t) , y = A*sin(t) , z = B*t Equations for a helix that has a radius of "A" and rises by 2*pi*B units per turn "B" could also be the the pitch (distance between threads on a bolt"), it is the change in height of the helix after one full rotation. You can parameterize the equation and get r(t) = A*cos(t)i + A*sin(t)j + B*tk , where i,j,&k are vectors "t" is in radians and is equated to the angular revolution as you progress along the helix. So if you where to make two full circles around your helix then t = 4*pi. If your helix was centered around the position (0,0,0) and it had a radius of 4, then at t=0 your (x,y,z) location would be (4,0,0). If you then made two full circles around the helix your (x,y,z) location would be (4,0,4*pi)
difference between as on and as at
A six letter word for helix is spiral.As in "the staircase was spiral".
The bar.
Kabuto is the Dome Fossil, and Omanyte is the Helix Fossil. An easy way to remember is that a helix is a spiral, and hermit crabs, such as Omanyte, have a spiral shell.
Spiral
Just a simple spiral
spiral
The spiral shape of a coiled protein is called an alpha helix. This secondary structure is formed by hydrogen bonds between amino acids in the protein chain, resulting in a tightly wound helical structure.
A three dimensional spiral.
The spiral shape of the DNA molecule is called a double helix.
Spiral, coil, volute, whorl.
Having the form of a helix or spiral.
A noun, "helix" originally derives from ancient Greek, although it arrived in English through Latin. Its fundamental meaning is "spiral-shaped" or "a spiral-shaped object."