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9/11
See other 9/11 Articles

Title: 9/11 Illusions, Special Effects, and Other Magic Tricks
Source: [None]
URL Source: http://www.veteranstoday.com/2012/1 ... ects-and-other-magic-tricks-2/
Published: Oct 13, 2012
Author: Jack White (with Jim Fetzer)
Post Date: 2012-10-13 15:44:20 by wudidiz
Ping List: *9-11*     Subscribe to *9-11*
Keywords: None
Views: 1708
Comments: 24

9/11 Illusions, Special Effects, and Other Magic Tricks

9/11 Illusions, Special Effects, and Other Magic Tricks

 

by Jack White (with Jim Fetzer)

 

Jack White was a legendary photo and film analyst who made magnificent and enduring contributions to the study of JFK, which I archived in three books with color-photo sections by him, namely:  Assassination Science (1998), Murder in Dealey Plaza (2000), and The Great Zapruder Film Hoax (2003).  He was my dear friend.  He also contributed a color-photo section to The 9/11 Conspiracy (2007), where our last collaboration was on this series of studies for a new book on 9/11 that I was editing, which has not yet found a publisher.  Here I want to publish his color-photo section and integrate it with the biographical sketch for “Jack White” at the Spartacus Educational site.
Jack D. White was born on January 17, 1927, in San AngeloTexas. His parents, John Nathan White and Billie Lorena Dumas White, moved the family to Fort Worth shortly after his birth and he was raised and educated there. After graduation from Amon Carter Riverside High School in 1944, White worked briefly for the Fort Worth Press as a sports writer covering high school sports under legendary sports editor H. H. “Pop” Boone.
During the Second World War White enlisted in the U.S. Navy. After his discharge in 1946, White returned to Fort Worth to pursue his interest in journalism, art, and history. He graduated from Texas Christian University in 1949, with a B.A. in journalism and began an advertising career as copywriter and art director at Yates Advertising Agency in Fort Worth. In 1954, he joined the Witherspoon and Ridings Public Relations Agency in Fort Worth, which later became Witherspoon and Associates, at the time the largest advertising agency in town. White began as the firm’s first art director and during his twenty-seven years with the agency rose to vice-president, executive art director, personnel manager, and part owner. He specialized in design, type management, and photography and developed their in-house facilities for darkroom work, studio photography, and slide show presentations.
Although White had photographed the city since the 1950s, he only began collecting Fort Worth photographs seriously in 1972, when Witherspoon was planning the 100th anniversary of one of its clients, the Fort Worth National Bank. He was in charge of acquiring copies of historical prints of Fort Worth for the bank’s annual report, a historical booklet, and an exhibit for the bank lobby. After the anniversary event, he took care to preserve all the exhibit materials. During the next twenty years White reproduced other clients’ historical photographs and took hundreds of pictures to add to the collection.
Another of White’s areas of expertise and collecting interests is the assassination of President John F. Kennedy in DallasTexas, in 1963. He is nationally known as an expert on the assassination and served as a photographic consultant to the House Select Committee on Assassinations during the hearings. He was also a consultant on the Oliver Stone film, JFK.
 As a result of his interest in the Kennedy assassination, White published two videotapes on his photographic studies of the assassination. He has developed a slide lecture, which he presents to classes and symposia on the JFK assassination and also contributes his research to professional journals.
White, along with David MantikCharles CrenshawRobert Livingston and Ronald F. White, contributed toAssassination Science (edited by James H. Fetzer). He also contributed several articles for Murder in Dealey Plaza (2000) and The Great Zapruder Film Hoax (2003
White retired from Witherspoon and Associates in 1981, and formed his own company, Jack White Enterprises, which specialized in free-lance art and photography. In 1984, as business increased, he took on partners. The firm’s name changed to VJS Companies, and the company added new services, including typography and photostats. The firm closed for a brief period in 1991, following several setbacks, but reopened later in the year as Jack White Graphic Arts.
Following his retirement, White lived in the White Lake Hillsaddition in east Fort Worth with his wife the former Sue Benningfield. Their home, built in 1970, was designed to focus on a view of the downtown Fort Worth skyline. Jack D. White died, aged 85, on 18th June, 2012.

 

Jack White‘s photo studies of the JFK assassination, the 9/11 atrocities, and the Apollo moon landing hoax may be found at JFK Studies: Jack White’s JFK Assassination Photo Research.
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#1. To: wudidiz (#0)

This article lost all credibility when it went with the "no plane" propaganda" put out by the govt. Thierry Meyssan has admitted he was paid by the US govt to publish the no plane garbage. To make it appear legal, the govt paid for the publication and purchased $3 million worth of his bogus propaganda 9/11: The Big Lie books. This is why Rumsfeld conveniently accidentally said something about a missile hitting the Pentagon then quickly corrected himself. This disinformation has been used by the govt to help discredit any investigation into obvious discrepancies with the govt's 9/11 version and findings.

bush_is_a_moonie  posted on  2012-10-13   17:40:50 ET  Reply   Trace   Private Reply  


#2. To: bush_is_a_moonie, *No Planers* (#1)


"For my part, whatever anguish of spirit it may cost, I am willing to know the whole truth, to know the worst, and to provide for it.” ~ Patrick Henry

wudidiz  posted on  2012-10-13   17:51:18 ET  (1 image) Reply   Trace   Private Reply  


#3. To: bush_is_a_moonie (#1)

This disinformation has been used by the govt to help discredit any investigation into obvious discrepancies with the govt's 9/11 version and findings.

Exactly right.

NO PLANER COINTELPRO Operation Becoming Transparent


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-13   18:21:56 ET  Reply   Trace   Private Reply  


#4. To: wudidiz (#2)

Again, as I said on the other thread, what did you expect that plane to do, bounce off the WTC South Tower as if it were made of rubber, or shatter as if it were made of glass?

It was a large high velocity mass of about 250,000 pounds, hitting a mesh of relatively thin steel columns spaced far enough apart where the majority of the plane encountered no exterior resistance upon penetration.

It carried a huge amount of momentum and exerted a massive amount of force upon the exterior columns of the WTC tower. That, and it all happened in a split second.

So what you show in your collection of screen shots is NOT evidence that there was no plane there.

Besides, it was captured on MANY different cameras, both from private individuals AND news agencies. So unless all of the news crews, camera crews, production staff, and witnesses on the scene, including the survivors, were in on this huge conspiracy to produce fraudulent video, air it in real time in relation to real world events, and plotted to kill 3000 Americans, including themselves in some cases, all to benefit PNAC and the news moguls, well, I think fairies wearing boots kicking down the towers have about as much of a chance as your story of being true.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-13   18:32:53 ET  Reply   Trace   Private Reply  


#5. To: bush_is_a_moonie (#1) (Edited)

You'll notice that what they do is mix in shreds of truth along with their ridiculous claims. Some of them also plagiarize the work of legitimate researchers and call it their own, while adding their own spin to whatever facet of the event it is they're trying to discredit.

Note how the author mixes in the Pentagon matter, where there WAS more than likely no AIRLINER, but more than likely there WAS some sort of drone or cruise missile. There is ample scientific data which can prove that a 757 did NOT fly into the Pentagon as described, along with credible evidence that the alleged pilot could not fly at all, never mind manuever a large passenger jet into a virtually impossible trajectory, flying 500+ mph over the Pentagon lawn with the plane's engines just 3 feet off the ground, while never touching the lawn even once, and keeping the plane from climbing due to ground effect.

They appear to overlook the fact that those videos which would show the approach of the aircraft (taken from vantage points such as the roof of the Pentagon) have NOT been released. If their "no plane" theory were true, there would be hordes of videos of the Pentagon approach and impact, since it'd be much easier to fake those than of an ongoing event witnessed by millions of people in NYC.

Facts and logic don't appear to be something they are very fond of.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-13   18:43:18 ET  Reply   Trace   Private Reply  


#6. To: FormerLurker (#4)

It was a large high velocity mass of about 250,000 pounds, hitting a mesh of relatively thin steel columns spaced far enough apart where the majority of the plane encountered no exterior resistance upon penetration.

It carried a huge amount of momentum and exerted a massive amount of force upon the exterior columns of the WTC tower. That, and it all happened in a split second.

Mass X velocity = Kinetic Energy /time = Power

With the plane going 500 mph, or whatever, the time element of the energy transfer to the building would have been a second or less, that's a lot of Power.

"Satan / Cheney in "08" Just Foreign Policy Iraqi Death Estimator

tom007  posted on  2012-10-13   18:53:20 ET  Reply   Trace   Private Reply  


#7. To: tom007 (#6)

By the time the nose was done crushing against the building some of it should of blown back... after all ducks break those nose cones. After the steel engines (Almost all the steel their is in a plane) went in we should of seen some serious blow back and impact scatter.... action reaction happens in nanoseconds, not whole seconds.

By the time the tail is starting to melt in we should see all kinds of debries flying... lord knows I've seen what an F1 racer crash looks like... I've seen lots and lots of crashes in fact... (Hazard of the research) And yeah every single crash of almost every kind has all kinds of reaction before the entire plane sank

HELL One would of thought those engines would of crunched out some office furniture and glass.... I mean the engines sank in with the tail still following and yet... the photos and film speak to the inconsistencies.

____________________________________________________________ . . . The US government has declared civil war on itself. Its lust for war grew so great... Liberty before death. We run , we live, We fight again, till we win. We did not start this fight. We damn sure did not willingly pay our taxes to buy the bullets and drones that shall be used to kill us. We will correct the violations of this rogue nation....our rogue nation. We will fix this because nobody else can. You will work to help me help us all to fix this failure. After you're done educating yourself, Action!!!

titorite  posted on  2012-10-13   19:52:21 ET  Reply   Trace   Private Reply  


#8. To: titorite (#7)

By the time the nose was done crushing against the building some of it should of blown back

No.

Conservation of energy. The energy vector was in one direction only - no matter would be "blown back".

"Satan / Cheney in "08" Just Foreign Policy Iraqi Death Estimator

tom007  posted on  2012-10-13   20:12:32 ET  Reply   Trace   Private Reply  


#9. To: tom007 (#6) (Edited)

Mass X velocity = Kinetic Energy /time = Power

In regards to force, it's m * v = F, were m is mass in kilograms, v is velocity in meters per second, and F is force in newtons.

In terms of kinetic energy, it's 1/2m * v2 = E, where E is energy in joules.

From the following webpage, the amount of work done of an impact would be as follows;

Work-Energy Principle

The change in the kinetic energy of an object is equal to the net work done on the object.

This fact is referred to as the Work-Energy Principle and is often a very useful tool in mechanics problem solving. It is derivable from conservation of energy and the application of the relationships for work and energy, so it is not independent of the conservation laws. It is in fact a specific application of conservation of energy. However, there are so many mechanical problems which are solved efficiently by applying this principle that it merits separate attention as a working principle. For a straight-line collision, the net work done is equal to the average force of impact times the distance traveled during the impact.

Average impact force x distance traveled = change in kinetic energy

If a moving object is stopped by a collision, extending the stopping distance will reduce the average impact force.

Car crash example

Seatbelt use

Auto stopping distance

Large truck-small truck collision

Two trucks, equal momentum

Impact force of falling object

Work-energy principle for angular quantities



With the weight of the aircraft, combined with its velocity, there would be a huge amount of kinetic energy available to do work. Power is actually amount of work done per second. Since work is determined by the initial kinetic energy - the final kinetic energy, the difference between the two objects velocity is the available power to destroy the stationary object, as well as the moving object.

What comes into play is momentum, and the concept of conservation of momentum. And then there are the theories of collisions, which include elastic and inelastic collisions.

It is those areas which explain scientifically how a large fast moving object will interact with a stationary object.

I don't know if it's worth posting right now, but perhaps I'll put something together next week.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-13   21:47:38 ET  (1 image) Reply   Trace   Private Reply  


#10. To: FormerLurker (#9)

Save your time and brain cells.

If people want/need to believe that 19 muslims did 9.11, let'em.

A physics lesson won't help.

“The most dangerous man to any government is the man who is able to think things out... without regard to the prevailing superstitions and taboos. Almost inevitably he comes to the conclusion that the government he lives under is dishonest, insane, intolerable.” ~ H. L. Mencken

Lod  posted on  2012-10-13   22:02:06 ET  Reply   Trace   Private Reply  


#11. To: FormerLurker (#9)

In terms of kinetic energy, it's 1/2m * v2 = E, where E is energy in joules.

Yeh - I knew I blew it from the begining. Mass X Force = momentu

"Satan / Cheney in "08" Just Foreign Policy Iraqi Death Estimator

tom007  posted on  2012-10-13   22:39:50 ET  Reply   Trace   Private Reply  


#12. To: tom007 (#8) (Edited)

By the time the nose was done crushing against the building some of it should of blown back

No.

Conservation of energy. The energy vector was in one direction only - no matter would be "blown back".

That is not how Newtonian physics works.

The energy was not in one direction.

LOOK If you were to punch me in the face an equal amount of force exerted into my face would also be exerted into your fist. This is why people break knuckle and bone one faces. The force applies both ways. I know you know how to use a drill or an Ice Pick.

That is what is was in a sort of sense no?

The plane plowing into matter burrowing in... where is the ripples from the burrowing?

A hollow aluminium straw on half a tank of gas. Thats all it was. just an alleged typicical plane.

....................... Aluminium NOT does destroy steel....

It should not of happened under those alleged circumstances... not even with everything in its favor!

>>>>>>>>>I would love to see a 911 youtube series , Aluminium vrs steel...it would prove the point<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<,,

meh

I have digressed badly.

SO when the plane was pileing into the building the matter had no where else to go. It does not get "hyper compacted" it does not go into "N" space. As the plane smashed in it would of had to dislodge it's own matter and the buildings matter as it entered into the building.... moment by moment.

Point being

By the time half the plane is in the building, by that time the other half of building and plane matter is blowing back...especially around the entrance hole

ALL YOU GUN SHOOTERS THAT HAVE WATCHED YOUR BULLETS IMPACT TARGETS KNOW THIS!!!!

As the bullet enters , shit gets dislodged and blown back and out and so one and so forth.

......

If you fail to see it then maybe it's fake!@!#$(%%^&9!~!!~!

Still.. who knows. I could always be completely wrong.

____________________________________________________________ . . . The US government has declared civil war on itself. Its lust for war grew so great... Liberty before death. We run , we live, We fight again, till we win. We did not start this fight. We damn sure did not willingly pay our taxes to buy the bullets and drones that shall be used to kill us. We will correct the violations of this rogue nation....our rogue nation. We will fix this because nobody else can. You will work to help me help us all to fix this failure. After you're done educating yourself, Action!!!

titorite  posted on  2012-10-13   23:14:00 ET  Reply   Trace   Private Reply  


#13. To: titorite (#12)

ALL YOU GUN SHOOTERS THAT HAVE WATCHED YOUR BULLETS IMPACT TARGETS KNOW THIS!!!!

As the bullet enters , shit gets dislodged and blown back and out and so one and so forth.

......

Apparently you've never shot a gun.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   1:11:11 ET  Reply   Trace   Private Reply  


#14. To: titorite (#12)

A hollow aluminium straw on half a tank of gas. Thats all it was. just an alleged typicical plane.

Uh huh. One that weighed roughly 250,000 pounds traveling at 500 mph, and which contained magnesium and steel alloys, as well as anodized aluminum as hard or harder than that used in guns.

Hollow aluminum straw my ass.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   1:19:25 ET  Reply   Trace   Private Reply  


#15. To: Lod (#10)

If people want/need to believe that 19 muslims did 9.11, let'em.

A physics lesson won't help.

I guess you're right. They'll believe what they want to believe, no matter what.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   1:21:27 ET  Reply   Trace   Private Reply  


#16. To: FormerLurker (#15)

I guess you're right. They'll believe what they want to believe, no matter what.

That may be true, but to not try to inform them when you know the truth would be kind of like aiding and abetting the enemy by not speaking out about their crimes.

God is always good!

RickyJ  posted on  2012-10-14   3:25:51 ET  Reply   Trace   Private Reply  


#17. To: RickyJ (#16)

That may be true, but to not try to inform them when you know the truth would be kind of like aiding and abetting the enemy by not speaking out about their crimes.

You don't fucking say?

LOL

I sure wish people like you would live by their words.

____________________________________________________________ . . . The US government has declared civil war on itself. Its lust for war grew so great... Liberty before death. We run , we live, We fight again, till we win. We did not start this fight. We damn sure did not willingly pay our taxes to buy the bullets and drones that shall be used to kill us. We will correct the violations of this rogue nation....our rogue nation. We will fix this because nobody else can. You will work to help me help us all to fix this failure. After you're done educating yourself, Action!!!

titorite  posted on  2012-10-14   4:15:59 ET  Reply   Trace   Private Reply  


#18. To: RickyJ, Lod (#16)

That may be true, but to not try to inform them when you know the truth would be kind of like aiding and abetting the enemy by not speaking out about their crimes.

Thing is, even if I proved how much force the plane would have applied to the tower upon impact, and what the laws of momentum and collisions would show in terms of effects, they'd either not understand it, would simply ignore it, or call it disinfo.

So when dealing with people such as "no planers", you have to keep it simple.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   17:15:22 ET  Reply   Trace   Private Reply  


#19. To: FormerLurker (#18) (Edited)

Thing is, even if I proved how much force the plane would have applied to the tower upon impact, and what the laws of momentum and collisions would show in terms of effects, they'd either not understand it, would simply ignore it, or call it disinfo.

You have proved nothing... You ignore the law of action and reaction.

The buildings were no cue balls that absorb and transfer momentum. They did not go anywhere.

As an object busted in so to would the matter of the object blast out.

... You know nothing of crash physics....

Edit to remove junk.

____________________________________________________________ . . . The US government has declared civil war on itself. Its lust for war grew so great... Liberty before death. We run , we live, We fight again, till we win. We did not start this fight. We damn sure did not willingly pay our taxes to buy the bullets and drones that shall be used to kill us. We will correct the violations of this rogue nation....our rogue nation. We will fix this because nobody else can. You will work to help me help us all to fix this failure. After you're done educating yourself, Action!!!

titorite  posted on  2012-10-14   18:23:05 ET  Reply   Trace   Private Reply  


#20. To: titorite (#19)

The buildings were no cue balls that absorb and transfer momentum

You obviously never went to school for physics. There is ALWAYS conservation of momentum, no matter how hard you stomp your feet. However, there are TWO types of collisions, elastic and inelastic. An elastic collision is where objects such as "cue balls" bounce off each other and retain their kinetic energy, ie. the total kinetic energy after the collision is the same as that before the collision, in an ideal situation.

Inelastic collisions are those where the total kinetic energy is less after the collision, as part of the total kinetic energy is transfered to some other form of energy. Thus, a plane smashing into exterior columns would be an inelastic collision, with the energy being dissipated into the work done by shearing the column.

I doubt you'll get it, but those are the facts.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   18:30:51 ET  Reply   Trace   Private Reply  


#21. To: titorite (#19)

... You know nothing of crash physics....

Uh huh.

From Elastic and Inelastic Collisions

Elastic and Inelastic Collisions

A perfectly elastic collision is defined as one in which there is no loss of kinetic energy in the collision. An inelastic collision is one in which part of the kinetic energy is changed to some other form of energy in the collision. Any macroscopic collision between objects will convert some of the kinetic energy into internal energy and other forms of energy, so no large scale impacts are perfectly elastic. Momentum is conserved in inelastic collisions, but one cannot track the kinetic energy through the collision since some of it is converted to other forms of energy. Collisions in ideal gases approach perfectly elastic collisions, as do scattering interactions of sub-atomic particles which are deflected by the electromagnetic force. Some large-scale interactions like the slingshot type gravitational interactions between satellites and planets are perfectly elastic. Collisions between hard spheres may be nearly elastic, so it is useful to calculate the limiting case of an elastic collision. The assumption of conservation of momentum as well as the conservation of kinetic energy makes possible the calculation of the final velocities in two-body collisions.
Elastic collisions, target at rest

Index

Collision concepts
 
HyperPhysics***** Mechanics R Nave
Go Back






Elastic Collisions

An elastic collision is defined as one in which both conservation of momentum and conservation of kinetic energy are observed. This implies that there is no dissipative force acting during the collision and that all of the kinetic energy of the objects before the collision is still in the form of kinetic energy afterward.

For macroscopic objects which come into contact in a collision, there is always some dissipation and they are never perfectly elastic. Collisions between hard steel balls as in the swinging balls apparatus are nearly elastic.

"Collisions" in which the objects do not touch each other, such as Rutherford scattering or the slingshot orbit of a satellite off a planet, are elastic collisions. In atomic or nuclear scattering, the collisions are typically elastic because the repulsive Coulomb force keeps the particles out of contact with each other.

Collisions in ideal gases are very nearly elastic, and this fact is used in the development of the expressions for gas pressure in a container.

Elastic collisions, target at restStandard examples, elastic collisions
Index

Collision concepts
 
HyperPhysics***** Mechanics R Nave
Go Back






Swinging Balls

A popular demonstration of conservation of momentum and conservation of energy features several polished steel balls hung in a straight line in contact with each other. If one is pulled back and allowed to strike the line, one ball flies out the other end. If two balls are sent in, two come out, and so forth.

Swinging balls movie
Index

Collision concepts

Elastic collisions
 
HyperPhysics***** Mechanics R Nave
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"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   18:38:39 ET  (4 images) Reply   Trace   Private Reply  


#22. To: titorite (#19)

Inelastic Collisions

Perfectly elastic collisions are those in which no kinetic energy is lost in the collision. Macroscopic collisions are generally inelastic and do not conserve kinetic energy, though of course the total energy is conserved as required by the general principle of conservation of energy. The extreme inelastic collision is one in which the colliding objects stick together after the collision, and this case may be analyzed in general terms:

Calculation

Derivation of kinetic energy loss expressions

Examples of inelastic collisions

Index

Collision concepts
 
HyperPhysics***** Mechanics R Nave
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K.E. Lost in Inelastic Collision

In the special case where two objects stick together when they collide, the fraction of the kinetic energy which is lost in the collision is determined by the combination of conservation of energy and conservation of momentum.

One of the practical results of this expression is that a large object striking a very small object at rest will lose very little of its kinetic energy. If your car strikes an insect, it is unfortunate for the insect but will not appreciably slow your car. On the other hand, if a small object collides inelastically with a large one, it will lose most of its kinetic energy.

Calculation

Velocity after the collision

Examples of inelastic collisions

Index

Collision concepts
 
HyperPhysics***** Mechanics R Nave
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"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   18:45:31 ET  (2 images) Reply   Trace   Private Reply  


#23. To: titorite (#19)

... You know nothing of crash physics....

What do you think collisions are? Are you really that dense?

God is always good!

RickyJ  posted on  2012-10-14   18:53:56 ET  Reply   Trace   Private Reply  


#24. To: RickyJ (#23)

I think we both know the answer to that last question. Either he is, or he's PRETENDING to be.


"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen

FormerLurker  posted on  2012-10-14   18:55:48 ET  Reply   Trace   Private Reply  


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