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A strain can occur as a result of improper body mechanics with any activity (e.g., contact sports, lifting heavy objects) that can induce mechanical trauma or injury.. Generally, the muscle or tendon overstretches and is placed under more physical stress than it can withsta
The term "corpsicle" is utilized in science fiction to describe a deceased body that has been cryopreserved through cryonics. It is a combination of the words "corpse" and " popsicle ." [ 1 ] The earliest known printed usage of this term in its current form can be traced back to science fiction author Frederik Pohl 's book The Age of the ...
The "predestination paradox" is a concept in time travel and temporal mechanics, often explored in science fiction. It occurs when a future event is the cause of a past event, which in turn becomes the cause of the future event, forming a self-sustaining loop in time.
Portevin–Le Chatelier effect (engineering) (materials science) Position-effect variegation (genetics) Positivity effect (aging) (cognition) (cognitive biases) (memory) (memory biases) (psychological theories) (psychology) Poynting effect (gases) Poynting–Robertson effect (celestial mechanics) Practical effect (special effects) Pratfall ...
These include infinite or nearly infinite rigidity, making them "unbreakable objects" and a perfect or nearly-perfect reflective surface. Most science fiction plots rely on a physical device to establish this region. When the device is deactivated, the stasis field collapses, and the stasis effect ends. Time is often suspended in stasis fields.
Tau Zero, a novel by Poul Anderson, is an early example of the concept in science fiction literature. In the novel, a spacecraft uses a Bussard ramjet to accelerate to high enough speeds that the crew spends five years on board, but thirty-three years pass on the Earth before they arrive at their destination.
In mechanics, an impact is when two bodies collide. During this collision, both bodies decelerate. The deceleration causes a high force or shock, applied over a short time period. A high force, over a short duration, usually causes more damage to both bodies than a lower force applied over a proportionally longer duration.
Retrocausality, or backwards causation, is a concept of cause and effect in which an effect precedes its cause in time and so a later event affects an earlier one. [1] [2] In quantum physics, the distinction between cause and effect is not made at the most fundamental level and so time-symmetric systems can be viewed as causal or retrocausal.