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A g-holed toroid can be seen as approximating the surface of a torus having a topological genus, g, of 1 or greater. The Euler characteristic χ of a g holed toroid is 2(1-g). [2] The torus is an example of a toroid, which is the surface of a doughnut. Doughnuts are an example of a solid torus created by rotating a disk, and are not toroids.
Poloidal direction (red arrow) and toroidal direction (blue arrow) A torus of revolution in 3-space can be parametrized as: [2] (,) = (+ ) (,) = (+ ) (,) = . using angular coordinates , [,), representing rotation around the tube and rotation around the torus' axis of revolution, respectively, where the major radius is the distance from the center of the tube to the center of ...
Indonesia – Donat kentang (Potato Doughnut) is an Indonesian style fried mashed potato doughnut; it is a ring-shaped doughnut made from a combination of flour and mashed potatoes, coated in powdered sugar or icing sugar. Iran – Zooloobiya is a doughnut that comes in various shapes and sizes and coated in a sticky-sweet syrup. Razavi ...
NASA’s Mars Perseverance rover captured an image of a mysterious doughnut-shaped rock on the planet’s surface.
It consists of a torus, or doughnut-shaped ring, that is 1.8 km in diameter (for the proposed 10,000 person habitat described in the 1975 Summer Study) and rotates once per minute to provide between 0.9 g and 1.0 g of artificial gravity on the inside of the outer ring via centrifugal force.
Basic doughnuts are still less than a dollar, but customers gladly pay a little more for peanut butter and jelly-filled or maple-dipped applesauce cake doughnuts. Andrea W./Yelp Iowa: Ambrosia Donuts
Sweet, shaped like a star Awameh: Levant: is a kind of fried-dough Levantine pastry similar to doughnut holes, made of deep fried dough, soaked in sugar syrup or honey and cinnamon, and sometimes sprinkled with sesame. Bambalouni: Tunisia: A sweet donut, made from frying dough in oil, eaten with sugar on top or honey Bamiyeh, zulbiā ...
Particularly notable is the lightened area shaped like a donut, and another which ... NASA has released a map of Pluto's surface made from images recently taken by the New Horizons probe and it ...