Falling is movement due to gravity, but also has other uses not directly related to gravity. Falling is a real-time card game from James Ernest in which all players are falling from the sky for no apparent reason. ... F-F-F-Falling (sometimes just Falling) is a song by the Finnish rockband The Rasmus, originally released on the bands fourth album Into on October 29, 2001 The single was released on April 2, 2001 by the record label Playground Music. ... Falls, a division of Belfast, was a former UK Parliament constituency in Ireland. ... Gravity is a force of attraction that acts between bodies that have mass. ...

Sensation

Further information: Sense of balance

A sensation of falling occurs when the labyrinth or vestibular apparatus, a system of fluid-filled passages in the inner ear, detects motion. The same system also detects rotary motion. A similar sensation of falling can be induced when the eyes detect rapid apparent motion with respect to the environment. This system enables us to keep our balance by signalling when a physical correction is necessary. Equilibrioception or sense of balance is one of the physiological senses. ... Senses are the physiological methods of perception. ... For more uses of the word labyrinth, see Labyrinth (disambiguation) The labyrinth is a system of fluid passages in the inner ear, including both the cochlea which is part of the auditory system, and the vestibular system which provides the sense of balance. ... Bat ears come in different sizes and shapes The ear is the sense organ that detects sound. ...

When a human is in free fall in an orbiting spacecraft, or in an aircraft in a steep dive, the sensation of falling is constant, and the sensation of there being an "up" and a "down" is missing or much attenuated. Some medical conditions, known as balance disorders, also induce the sensation of falling. Free fall in its strictest sense is the condition of acceleration which is due only to gravity. ... m. ... The Space Shuttle Discovery as seen from the International Space Station. ... Look up aircraft in Wiktionary, the free dictionary. ... Balance is the result of a number of body systems working together. ...

Accidents

Falling is a major cause of personal injury, especially for the elderly whose vision and muscles are weaker, whose vestibular sense is diminished, whose neurological responses are extended, and whose bones have grown brittle. Builders and miners represent worker categories representing high rates of fall injuries. The WHO estimate (2002) that 392,000 people die in falls every year. In 1972, Vesna Vulović survived a fall from 33,000ft without a parachute. A personal injury occurs when a person has suffered some form of injury, either physical or psychological, as the result of an accident. ... 80 year old man (Paul Kruger in later life) For the song by Hole and Nirvana, see Old Age. ... The Vestibular is a competitive examination and is the primary and widespread system used by Brazilian universities to select their students. ... Wikipedia does not yet have an article with this exact name. ... The El Chino Mine located near Silver City, New Mexico is an open-pit copper mine Mining is the extraction of valuable minerals or other geological materials from the earth, usually (but not always) from an ore body, vein, or (coal) seam. ... Who can refer to: WHO, World Health Organization The Who, a British rock band The Guess Who, a Canadian rock band who (pronoun), an English language interrogative pronoun. ... Vesna Vulović (Serbian: Весна Вуловић) (born 3 January 1950) holds the Guinness Book of Records world record for surviving the highest fall without a parachute: 10,160 meters (6. ...

Falls from buildings

Falls from buildings are often accidental but can also be caused intentionally, such as by defenestration. Injuries resulting in falls from buildings vary depending on the building's height, and also depend on the type of person (infant, child, adult, elderly adult, etc.) Falls from the second floor usually result in injuries, but are not fatal. ^[1][2] Around the fifth floor, falls start to become fatal, as there are reports of injuries resulting -- most non-fatal falls occur when the person lands on something (i.e. third floor balcony, etc.) and most fatal falls occur when the fall (usually of an infant or child) is directly to the ground^{[3] [4] [5] [6]}. Eighth floor level falls are usually fatal unless cushioned during the fall^[7][8][9]. Falls from at and above the tenth floor of a building are almost always fatal^[10][11][12]. Look up defenestration in Wiktionary, the free dictionary. ...

Falls in the Elderly

Stephen Lord at the University of New South Wales studied 80,000 elderly persons in Australia and found that the risk of falling increases for any who are taking multiple prescription medications and for all who are taking psychoactive drugs. This increased risk was demonstrated through the use of a variety of balance and reaction time tests. Inexplicably, the older men when matched with women of identical height, weight, and age, on average, performed measurably better in all of the balance and reaction time tests.

Classical physics

Further information: Gravity

Falling is descent under gravity. All objects have mass and in the presence of sufficiently massive objects such as planets or moons they experience a strong attraction due to gravity. This is known as weight. If the force of gravity is not equalized by an opposite force directed away from the planet, the object will start to fall towards the center of mass of the system--in effect, towards the center of the planet. The acceleration of gravity is directly proportional to the mass of the planet. The planet will also fall towards the center of the system but, if the object is much less massive than the planet, this motion is imperceptible. Gravity is a force of attraction that acts between bodies that have mass. ... Gravity is a force of attraction that acts between bodies that have mass. ... Unsolved problems in physics: What causes anything to have mass? The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. Mass is the property of a physical object that quantifies the amount of matter and energy it is equivalent to. ... The eight planets and three dwarf planets of the Solar System. ... A natural satellite is an object that orbits a planet or other body larger than itself and which is not man-made. ... A spring scale measures the weight of an object In the physical sciences, weight is a measurement of the gravitational force acting on an object. ... In physics, the center of mass of a system of particles is a specific point at which, for many purposes, the systems mass behaves as if it were concentrated. ... In mathematics, two quantities are called proportional if they vary in such a way that one of the quantities is a constant multiple of the other, or equivalently if they have a constant ratio. ...

The way in which an object moves under gravity (not necessarily a descent), in the absence of other forces, is known as free fall, and is described by a conic section whose parameters are dependent on the object's initial velocity. If the speed is above the escape velocity, and the object has no downward vertical component, the force of gravity is not enough to reverse the motion away from the planet and it will continue indefinitely on its path away from the planet. Otherwise it will fall back towards the planet and may go into orbit around it or collide with it. Free fall in its strictest sense is the condition of acceleration which is due only to gravity. ... Wikibooks has more on the topic of Conic section Types of conic sections Table of conics, Cyclopaedia, 1728 In mathematics, a conic section (or just conic) is a curve that can be formed by intersecting a cone (more precisely, a right circular conical surface) with a plane. ... Space Shuttle Atlantis launches on mission STS-71. ... m. ... For other uses, see Collision (disambiguation). ...

In the presence of an atmosphere, the conditions for free fall are broken and the object will experience atmospheric drag, and the speed at which it falls towards the planet is subject to a terminal velocity when the force due to drag equalizes the force of gravity. Note that in common usage the term free fall does not take account of atmospheric drag. Atmosphere is the general name for a layer of gases that may surround a material body of sufficient mass. ... Atmospheric drag is a form of drag, which is the force that opposes an object moving through a liquid or gas. ... Terminal velocity is the speed reached by an object falling in an atmosphere when atmospheric drag equals the objects weight, which halts acceleration and causes speed to remain constant. ...

Mathematics

In mathematics, the word falling describes a scalar value that decreases with respect to time or another variable. Euclid, Greek mathematician, 3rd century BC, as imagined by by Raphael in this detail from The School of Athens. ... In linear algebra, real numbers are called scalars and relate to vectors in a vector space through the operation of scalar multiplication, in which a vector can be multiplied by a number to produce another vector. ... A pocket watch, a device used to tell time Look up time in Wiktionary, the free dictionary. ...

References

1. ^ "http://www.accessmylibrary.com/comsite5/bin/pdinventory.pl?pdlanding=1&referid=2930&purchase_type=ITM&item_id=0286-3774828". 
2. ^ "http://abclocal.go.com/wls/story?section=News&id=3195460". 
3. ^ "http://query.nytimes.com/gst/fullpage.html?res=9804E4DA1430F936A35750C0A961958260". 
4. ^ "http://www.findarticles.com/p/articles/mi_qn4155/is_20060506/ai_n16354239". 
5. ^ "http://www.findarticles.com/p/articles/mi_qn4196/is_20030924/ai_n10908364". 
6. ^ "http://xo.typepad.com/blog/2004/08/img_alt_srchttp_247.html". 
7. ^ "http://archives.tcm.ie/breakingnews/2002/12/30/story82451.asp". 
8. ^ "Student dies after falling from eighth floor". 
9. ^ "http://news.bbc.co.uk/2/hi/uk_news/england/london/5222644.stm". 
10. ^ "http://query.nytimes.com/gst/fullpage.html?res=9F03E5DD103AF934A15755C0A96F958260". 
11. ^ "http://www.nriinternet.com/NRI_Murdered/ASIA/Russia/1_NRI_death_inMoscow.htm". 
12. ^ Zareena Hussain (1998-03-17). Gale Falls to Death from Green Building Classroom. The Tech.