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2. Razor USA - Wikipedia

   en.wikipedia.org/wiki/Razor_USA

   Razor USA LLC, better known as Razor, is an American designer and manufacturer of manual and electric scooters, bicycles, and personal transporters. The company was founded in Cerritos, California in 2000 by Carlton Calvin and the JD Corporation. [1] Razor also owns the RipStik, Sole Skate, and Pocket Pros brands. [2]

3. Razor (scooter) - Wikipedia

   en.wikipedia.org/wiki/Razor_(scooter)

   The Razor Scooter is a compact folding scooter developed by Micro Mobility Systems and manufactured by JD Corporation. [1] Over 5 million units were sold in the six months following the launch of the first Razor scooter in 2000, and it was named as Spring/Summer Toy of the Year that same year. [2] The first electric Razor scooter was released ...

4. Electric-pump-fed engine - Wikipedia

   en.wikipedia.org/wiki/Electric-pump-fed_engine

   The electric-pump-fed engine is a bipropellant rocket engine in which the fuel pumps are electrically powered, and so all of the input propellant is directly burned in the main combustion chamber, and none is diverted to drive the pumps. This differs from traditional rocket engine designs, in which the pumps are driven by a portion of the input ...

5. Solid Rocket Motor Upgrade - Wikipedia

   en.wikipedia.org/wiki/Solid_Rocket_Motor_Upgrade

   The Solid Rocket Motor Upgrade (SRMU) was a solid rocket motor that was used as a booster on the Titan IVB launch vehicle. Developed by Hercules (later ATK ), it was intended to be a high-performance, low-cost upgrade to the UA1207 boosters previously used on Titan IV.

6. Direct Fusion Drive - Wikipedia

   en.wikipedia.org/wiki/Direct_Fusion_Drive

   Direct Fusion Drive (DFD) is a conceptual, low radioactivity, nuclear-fusion rocket engine, designed to produce both thrust and electric power, suitable for interplanetary spacecraft. The concept is based on the Princeton field-reversed configuration reactor, invented in 2002 by Samuel A. Cohen.

7. Magnetohydrodynamic drive - Wikipedia

   en.wikipedia.org/wiki/Magnetohydrodynamic_drive

   Illustration of the right-hand rule for the Lorentz force, cross product of an electric current with a magnetic field. The working principle involves the acceleration of an electrically conductive fluid (which can be a liquid or an ionized gas called a plasma) by the Lorentz force, resulting from the cross product of an electric current (motion of charge carriers accelerated by an electric ...