Something very similar happens in a laser cooling apparatus, except such devices start with a warm cloud of atoms moving in numerous directions at variable velocity.
2.
The linear motion can be of two types : uniform linear motion with constant velocity or zero acceleration; non uniform linear motion with variable velocity or non-zero acceleration.
3.
In the late 1970s a limited batch of Mark III Ambassadors were produced with 1, 760 cc engines . They were fitted with Constant Velocity SU side-draft carburettors of an earlier era instead of the more common indigenous variable velocity Solex down-draft units.
4.
1784 : James Watt refers to a two-speed transmission in patent No . 1432, which relates to steam carriages : The concept of changing speed ( or a variable velocity ) in gearing, which could arguably be the seed of thought for all subsequent gearing systems.
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