toroids
Hollow circular solids
Toroids are doughnut-shaped objects—three-dimensional rings with a hole through the center.
The term appears most often in physics and engineering, where a toroid is a coil wound around a ring-shaped core: Toroids are used in transformers because they contain magnetic fields efficiently.
The singular is toroid; the adjective is toroidal.
Electrified matter state
- fusionJoining into unity
- tokamakPlasma confinement device
- reactorControlled fission apparatus
- magnetic confinementRestraining plasma via fields
donut · field lines · containment · deuterium · tritium · energy · experiment · chamber
Ring-shaped fried pastry
- ringClosed curve shape
- annulusRegion between two circles
- surfaceOutermost boundary layer
- topologyStudy of spatial arrangement
genus · hole · manifold · curvature · cross-section · meridian · parametric · revolution
Coil storing magnetic energy
- transformerVoltage-altering electrical device
- coreCentral essential portion
- coilWound circular arrangement
- windingCurving repeatedly, sinuous
ferrite · magnetic · choke · solenoid · EMI · filter · inductance · saturation
plasma
Electrified matter state
magnetic confinement · donut · field lines · containment · deuterium · tritium · energy · experiment · chamber · vacuum
doughnut
Ring-shaped fried pastry
topology · genus · hole · manifold · curvature · cross-section · meridian · parametric · revolution · axis
inductor
Coil storing magnetic energy
- transformerVoltage-altering electrical device
- coreCentral essential portion
- coilWound circular arrangement
winding · ferrite · magnetic · choke · solenoid · EMI · filter · inductance · saturation · permeability
bagel
Boiled, then baked roll
mochi · pretzel · savarin · baba · angel food · ring mold · glaze · fried · baked · yeast
O-ring
Circular sealing element
bearing · bushing · roller · rubber · silicone · hydraulic · pneumatic · compression · groove · flange
toroidsspheres
Round solids, all points equidistant
balls · cubes · ellipsoids · ovoids · discs
toroidsspheres
Round solids, all points equidistant
spheroids · hemispheres · domes · paraboloids · ellipsoids