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Amdahl's Law demonstrates the theoretical maximum speedup of an overall system and the concept of diminishing returns. Plotted here is logarithmic parallelization vs linear speedup. If exactly 50% of the work can be parallelized, the best possible speedup is 2 times. If 95% of the work can be parallelized, the best possible speedup is 20 times.
2.1 Maximum possible speed. 2.2 List of ultrafast lenses. 3 References. ... Lens speed is the maximum aperture diameter, or minimum f-number, of a photographic lens.
Footspeed, or sprint speed, is the maximum speed at which a human can run. It is affected by many factors, varies greatly throughout the population, and is important in athletics and many sports, such as association football , Australian rules football , American football , track and field , field hockey , tennis , baseball , and basketball .
The fastest possible speed at which energy or information can travel, according to special relativity, is the speed of light in vacuum c = 299 792 458 metres per second (approximately 1 079 000 000 km/h or 671 000 000 mph).
This speed is the asymptotic limiting value of the speed, and the forces acting on the body balance each other more and more closely as the terminal speed is approached. In this example, a speed of 50.0% of terminal speed is reached after only about 3 seconds, while it takes 8 seconds to reach 90%, 15 seconds to reach 99%, and so on.
Flank speed is very demanding of fuel and often unsustainable because of propulsion system limitations. The related term emergency may not be any faster than flank but it indicates that the ship should be brought up to maximum speed in the shortest possible time. [1] Other speeds include one-third, two-thirds, standard and full. One-third and ...
The speed of light in vacuum, ... It is only possible to verify experimentally that the two-way speed of light ... a signal can travel only a maximum of about 30 ...
The Margolus–Levitin theorem sets a bound on the maximum computational speed per unit of energy: 6 × 10 33 operations per second per joule. This bound, however, can be avoided if there is access to quantum memory. Computational algorithms can then be designed that require arbitrarily small amounts of energy/time per one elementary ...