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The Mikoyan-Gurevich MiG-105, part of the Spiral program, was a crewed test vehicle to explore low-speed handling and landing. It was a visible result of a Soviet project to create an orbital spaceplane. The MiG 105 was nicknamed "Lapot" (Russian: лапоть, or bast shoe; the word is also used as a slang for "shoe"), for the shape of its nose.
Uncrewed suborbital space plane. Horizontal takeoff and landing. Dream Chaser: USA: Rocket launch: ... List of space launch system designs; Mother ship This page was ...
Bast shoes are shoes made primarily from bast — fiber taken from the bark of trees such as linden. They are a kind of basket, woven and fitted to the shape of a foot. Bast shoes are a traditional footwear of the forest areas of Northeastern Europe, formerly worn by poorer members of the Finnic peoples, Balts, Russians, and Belarusians. They ...
The BOR-4 (БОР-4 Russian: Беспилотный Орбитальный Ракетоплан 4, Bespilotnyi Orbital'nyi Raketoplan 4, "Unpiloted Orbital Rocketplane 4") flight vehicle is a scaled (1:2) prototype of the Soviet Spiral VTHL (vertical takeoff, horizontal landing) spaceplane.
The fundamental plane is usually expressed as a relationship between the effective radius, average surface brightness and central velocity dispersion of normal elliptical galaxies. Any one of the three parameters may be estimated from the other two, as together they describe a plane that falls within their more general three-dimensional space ...
In mathematics, a phase portrait is a geometric representation of the orbits of a dynamical system in the phase plane. Each set of initial conditions is represented by a different point or curve. Phase portraits are an invaluable tool in studying dynamical systems. They consist of a plot of typical trajectories in the phase space.
Bast shoes were time-consuming to make. The bark from three or four saplings was soaked in a press for a long period. Despite this, the shoes were somewhat disposable, only lasting a week or so. [3] Bast shoes were used until the mid-twentieth century. They did not always have a rope-like sole; it was common for bast soles to be crudely woven ...
Conical spiral with an archimedean spiral as floor projection Floor projection: Fermat's spiral Floor projection: logarithmic spiral Floor projection: hyperbolic spiral. In mathematics, a conical spiral, also known as a conical helix, [1] is a space curve on a right circular cone, whose floor projection is a plane spiral.