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2. Drafting (aerodynamics) - Wikipedia

   en.wikipedia.org/wiki/Drafting_(aerodynamics)

   It begins as normal drafting, but the following car pulls up behind the lead car and bumps into the rear of it, pushing the lead car ahead, to maintain momentum. If done roughly or in the wrong position (e.g. close to the entry of the turn), this tactic can destabilize the handling of the lead car, sometimes causing a crash.

3. Slipstream - Wikipedia

   en.wikipedia.org/wiki/Slipstream

   When the flow is laminar, the pressure behind the object is higher than the surrounding fluid. The shape of an object determines how strong the effect is. In general, the more aerodynamic an object is, the smaller and weaker its slipstream will be. For example, a box-like front (relative to the object's motion) will collide with the medium's ...

4. Rabattement (drafting) - Wikipedia

   en.wikipedia.org/wiki/Rabattement_(drafting)

   All faces and relative position of colors are visible in one drawing A rabattement drawing of a splayed arch (c. 1600). Lines B and D are the faces of the wall , also used as folding lines. A and C are elevations of the arch faces on both sides of the wall

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

6. Pacemaker (running) - Wikipedia

   en.wikipedia.org/wiki/Pacemaker_(running)

   Rabbits Abel Kirui, Elijah Keitany [] and Wilson Kigen [] pacing Haile Gebrselassie and Charles Kamathi at the Berlin Marathon 2008. A pacemaker or pacesetter, sometimes informally called a rabbit, [1] is a runner who leads a middle-or long-distance running event for the first section to ensure a high speed and to avoid excessive tactical racing.

7. French curve - Wikipedia

   en.wikipedia.org/wiki/French_curve

   It is used in manual drafting and in fashion design to draw smooth curves of varying radii. The curve is placed on the drawing material, and a pencil , knife or other implement is traced around its curves to produce the desired result.