collision

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Computers A garbled communication between 2 devices in a local area network (LAN) that results when both attempt to transmit data simultaneously; after colliding, each device waits for a period of time and retries; increased devices on a LAN increase the likelihood of collision
Obstetrics A mechanical obstruction to the birth of twins, such that the lay of one foetus impedes the engagement of the other; the most extreme collision is known as interlocking
Public health Road traffic accident/motor vehicle accident
Radiation physics The interaction between 2 particles—e.g., photons, atomic nuclei, electrons—during which energy, momentum, and charge may be altered

collision

Obstetrics A mechanical obstruction to the birth of twins, such that the lay of one fetus impedes the engagement of the other; the most extreme collision is known as interlocking, see there Public health Motor vehicle accident. See MVA.
References in periodicals archive ?
The resulting closing speed was compared to the reported closing speed and the percent error is reported in Table 4.
From the point of view of each object, the other object comes straight at it, at some closing speed that is the (magnitude of the) difference of the two objects' vector velocities.
The brake assist plus system spots vehicles and warns if the gap is too small or the closing speed too high.
It has been developed to comply with proposed future ICAO Standards by (i) providing display for the right-hand seat; (ii) providing digital display of closing speed and range to Stop position, and (iii) automatic illumination of STOP at range zero.
This closing speed aftereffect is quite distinct from the well-known adaptation of the perceived speed of self-motion that is caused by the expanding retinal flow pattern (Denton, 1976; i.e., drivers underestimate their driving speed following adaptation).
A mid-course correction ensures that Cougar always attacks from astern, which means a slower closing speed is needed.
Clamp force, opening speed, closing speed and pressing speed are all manually adjustable.
Its versatile frame provides efficiency and reliability, and the closing speed and crimp pressure are adjustable.
It may also surprise you to learn that the closing speed at which aircraft collide is typically relatively slow.
With a closing speed of perhaps 230 knots, those 53s got real big, real fast.
of closing speed. Rules of thumb given by George Stimson (see "Radar Characteristics, Part One," JED, May 2000, p.
Police revealed the closing speed of the impact would have been about 150 mph and said the incident could have ended in many deaths.