Logarithmic spiral — A logarithmic spiral, equiangular spiral or growth spiral is a special kind of spiral curve which often appears in nature. The logarithmic spiral was first described by Descartes and later extensively investigated by Jakob Bernoulli, who called… … Wikipedia
Parker spiral — [ heliospheric current sheet is a three dimensional form of the Parker spiral that results from the influence of the Sun s rotating magnetic field on the plasma in the interplanetary medium. [http://wso.stanford.edu/gifs/helio.gif] ] The Parker… … Wikipedia
Osseous spiral lamina — Bone: Osseous spiral lamina The cochlea and vestibule, viewed from above. (Lamina spiralis ossea labeled at center top.) … Wikipedia
involute rolled esp of petals or leaves in bud having margins rolled inward — coiled coiled (koild), adj. curled or wound especially in concentric rings or spirals; as, a coiled snake ready to strike; the rope lay coiled on the deck. Opposite of {uncoiled}. Note: [Narrower terms: {coiling, helical, spiral, spiraling,… … The Collaborative International Dictionary of English
coiling helical spiral spiraling volute voluted whorled — coiled coiled (koild), adj. curled or wound especially in concentric rings or spirals; as, a coiled snake ready to strike; the rope lay coiled on the deck. Opposite of {uncoiled}. Note: [Narrower terms: {coiling, helical, spiral, spiraling,… … The Collaborative International Dictionary of English
Poynting-Robertson effect — The Poynting Robertson effect, also known as Poynting Robertson drag, named after John Henry Poynting and Howard Percy Robertson, is a process by which solar radiation causes a dust grain in the solar system to slowly spiral inward. The drag is… … Wikipedia
Rings of Jupiter — A schema of Jupiter s ring system showing the four main components The planet Jupiter has a system of rings, known as the rings of Jupiter or the Jovian ring system. It was the third ring system to be discovered in the Solar System, after those… … Wikipedia
Asteroid belt — For the album by Velvet Chain, see Asteroid Belt (album). The asteroid belt (shown in white) is located between the orbits of Mars and Jupiter. The asteroid belt is the region of the Solar System located roughly between the orbits of the planets… … Wikipedia
Yarkovsky effect — The Yarkovsky effect is a force acting on a rotating body in space caused by the anisotropic emission of thermal photons, which carry momentum. It is usually considered in relation to meteoroids or small asteroids (about 10 cm to 10 km in… … Wikipedia
Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… … Wikipedia