Results 141 to 150 of about 45,104 (193)

Understanding projectile acceleration.

Journal of Experimental Psychology: Human Perception and Performance, 2000
Throwing and catching balls or other objects is a generally highly practiced skill; however, conceptual as well as perceptual understanding of the mechanics that underlie this skill is surprisingly poor. In 5 experiments, we investigated conceptual and perceptual understanding of simple ballistic motion.
Hecht, Heiko, Bertamini, Marco
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Notes on Projectile Motion [PDF]

The American Mathematical Monthly, 2019
If we throw a ball at angle 0≤θ≤π/2 to the horizon randomly, what is the expected length of the trajectory? Catalan’s constant appears in the answer.
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Projectiles

The Mathematics Teacher, 1964
Considerable facility with functions of angles in triangles is still demanded of students.
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Sterilization of Projectile Syringes

Journal of the American Veterinary Medical Association, 1972
NZP
Bush, R. Mitchell, Gray, Clinton W.
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The Measurement of Projectile Velocities

Transactions of the American Institute of Electrical Engineers, 1920
The paper discusses the requirements imposed by proving ground practise upon a chronograph which is intended for general ammunition testing. Instruments of the standard pre-wvar pattern were entirely inadequate in number for testing the immense quantities of ammunition contracted for by the Government during the war.
Paul E. Klopsteg, Alfred L. Loomis
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Projectile identification system

32nd Applied Imagery Pattern Recognition Workshop, 2003. Proceedings., 2004
The U.S. Army plans for the needs of future warfare to retain its technological superiority. Future Combat Systems (FCS) is a major effort designed to meet this need. FCS includes multiple automated fire weapons. On current systems, a human typically enters information about each projectile loaded.
Glenn J. Beach, Charles J. Cohen, Gary Moody, Martha Henry   +3 more
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Projectiles and Hafting Technology

2016
Stone tool hafting has always been considered important, but its interpretative potential has not yet been sufficiently recognized. While wear studies have recently demonstrated the possibility of deriving hafting data from the stone tools themselves, it is essential that these kinds of data are now also integrated with regard to armature ...
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Projectiles and glass

2011
Michael G. Haag, Lucien C. Haag
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Three-dimensional trajectory prediction and analysis of elliptical projectile

International Journal of Impact Engineering, 2023
Haijun Wu
exaly  

Projectiles

2008
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