enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Bubble ring - Wikipedia

    en.wikipedia.org/wiki/Bubble_ring

    A bubble ring, or toroidal bubble, is an underwater vortex ring where an air bubble occupies the core of the vortex, forming a ring shape. The ring of air as well as the nearby water spins poloidally as it travels through the water, much like a flexible bracelet might spin when it is rolled on to a person's arm.

  3. Vortex ring - Wikipedia

    en.wikipedia.org/wiki/Vortex_ring

    Spark photography image of a vortex ring in flight. A vortex ring, also called a toroidal vortex, is a torus-shaped vortex in a fluid; that is, a region where the fluid mostly spins around an imaginary axis line that forms a closed loop. The dominant flow in a vortex ring is said to be toroidal, more precisely poloidal. [clarification needed]

  4. Vortex - Wikipedia

    en.wikipedia.org/wiki/Vortex

    Vortex rings are torus-shaped vortices where the axis of rotation is a continuous closed curve. Smoke rings and bubble rings are two well-known examples. The lifting force of aircraft wings, propeller blades, sails, and other airfoils can be explained by the creation of a vortex superimposed on the flow of air past the wing.

  5. Hypnotic underwater footage shows divers swimming through ...

    www.aol.com/hypnotic-underwater-footage-shows...

    Bubble rings occur underwater when trapped air is released in a circular shape. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...

  6. Toothed whale - Wikipedia

    en.wikipedia.org/wiki/Toothed_whale

    Dolphins are known to engage in complex play behaviour, which includes such things as producing stable underwater toroidal air-core vortex rings or "bubble rings". Two main methods of bubble ring production are: rapid puffing of a burst of air into the water and allowing it to rise to the surface, forming a ring, or swimming repeatedly in a ...

  7. Toroidal ring model - Wikipedia

    en.wikipedia.org/wiki/Toroidal_ring_model

    The toroidal ring model, known originally as the Parson magneton or magnetic electron, is a physical model of subatomic particles. It is also known as the plasmoid ring, vortex ring, or helicon ring. This physical model treated electrons and protons as elementary particles, and was first proposed by Alfred Lauck Parson in 1915.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Smoke ring - Wikipedia

    en.wikipedia.org/wiki/Smoke_ring

    Smoke rings may also be formed by sudden bursts of fire (such as lighting and immediately putting out a cigarette lighter), by shaking a smoke source (such as an incense stick) up and down, by firing certain types of artillery, or by the use of special devices, such as vortex ring guns and vortex ring toys.