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  2. Retrograde and prograde motion - Wikipedia

    en.wikipedia.org/wiki/Retrograde_and_prograde_motion

    This is the first known example of a counterrotating accretion disk. If this system forms planets, the inner planets will likely orbit in the opposite direction to the outer planets. [35] WASP-17b was the first exoplanet that was discovered to be orbiting its star opposite to the direction the star is rotating. [36]

  3. Multiview orthographic projection - Wikipedia

    en.wikipedia.org/wiki/Multiview_orthographic...

    Fig.11: The fourth plane of projection is added parallel to the chosen inclined surface, and perforce, perpendicular to the first (Frontal) plane of projection. Fig.12: Projectors emanate parallel from all points of the object perpendicularly from the inclined surface, and perforce, perpendicular to the fourth (Auxiliary) plane of projection.

  4. Orbital inclination - Wikipedia

    en.wikipedia.org/wiki/Orbital_inclination

    On the other hand, the dwarf planets Pluto and Eris have inclinations to the ecliptic of 17° and 44° respectively, and the large asteroid Pallas is inclined at 34°. In 1966, Peter Goldreich published a classic paper on the evolution of the Moon's orbit and on the orbits of other moons in the Solar System. [ 8 ]

  5. Inclined plane - Wikipedia

    en.wikipedia.org/wiki/Inclined_plane

    An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle from the vertical direction, with one end higher than the other, used as an aid for raising or lowering a load. [1] [2] [3] The inclined plane is one of the six classical simple machines defined by Renaissance scientists. Inclined planes are used to move ...

  6. Strike and dip - Wikipedia

    en.wikipedia.org/wiki/Strike_and_dip

    Strike and dip shown alongside cardinal directions on a horizontal plane. Z: strike line of the red plane, σ: strike angle, F: dip direction, φ: dip angle. The angle of the intersection with the green plane is the red plane's apparent dip in the northward direction

  7. Opposition (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Opposition_(astronomy)

    A more exact opposition occasionally occurs with mathematical regularity if the Moon is at its usual sun and Earth-aligning point so that it appears full and happens to be aligning with the ecliptic (Earth's orbital plane) during the descending or ascending phase of its 5° inclined (tilted) orbit, which is more concisely termed at a node of ...

  8. Why your astrological opposite might be your perfect match. Lisa Stardust. October 17, 2024 at 10:33 PM. Astrological circle with sister signs (TODAY Illustration / Getty Images)

  9. Spiral bevel gear - Wikipedia

    en.wikipedia.org/wiki/Spiral_bevel_gear

    A left hand spiral bevel gear is one in which the outer half of a tooth is inclined in the counterclockwise direction from the axial plane through the midpoint of the tooth as viewed by an observer looking at the face of the gear. Note that a spiral bevel gear and pinion are always of opposite hand, including the case when the gear is internal.