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Author Topic: How big force is pushing Camera inside Airplane ?  (Read 1267 times)

Offline marzosia2

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Basic Informations ( physics Books )

1600 Galilean relativity /Natural Fall Law
 
1861 J. C. Maxwell, published his theory of electromagnetic fields and radiation, which
shows that light has momentum and thus can exert pressure on objects.
1901  P. N. Lebedev EXPERIMENTAL EXAMINATION OF LIGHT PRESSURE

Si units system


 Galilean relativity *********************************************************
Imagine a person inside a ship which is sailing on a perfectly smooth lake at constant speed. This passeneger is in the ship's windowless hull and, despite it being a fine day, is engaged in doing mechanical experiments (such as studying the behavior of pendula and the trajectories of falling bodies). A simple question one can ask of this researcher is whether she can determine that the ship is moving (with respect to the lake shore) without going on deck or looking out a porthole.
Since the ship is moving at constant speed and direction she will not feel the motion of the ship. This is the same situation as when flying on a plane: one cannot tell, without looking out one of the windows, that the plane is moving once it reaches cruising altitutde (at which point the plane is flying at constant speed and direction). Still one might wonder whether the experiments being done in the ship's hull will give some indication of the its motion. Based on his experiments Galileo concluded that this is in fact impossible: all mechanical experiments done inside a ship moving at constant speed in a constant direction would give precisely the same results as similar experiments done on shore.
The conclusion is that one observer in a house by the shore and another in the ship will not be able to determine that the ship is moving by comparing the results of experiments done inside the house and ship. In order to determine motion these observers must look at each other. It is important important to note that this is true only if the ship is sailing at constant speed and direction, should it speed up, slow down or turn the researcher inside can tell that the ship is moving. For example, if the ship turns you can see all things hanging from the roof (such as a lamp) tilting with respect to the floor
Generalizing these observations Galileo postulated his relativity hypothesis:
???
any two observers moving at constant speed and direction with respect to one another will obtain the same results for all mechanical experiments   
???

(it is understood that the apparatuses they use for these experiments move with them).
In pursuing these ideas Galileo used the scientific method (Sec. 1.2.1): he derived consequences of this hypothesis and determined whether they agree with the predictions.
This idea has a very important consequence: velocity is not absolute. This means that velocity can only be measured in reference to some object(s), and that the result of this measurment changes if we decide to measure the velocity with respect to a diferent refernce point(s). Imagine an observer traveling inside a windowless spaceship moving away from the sun at constant velocity. Galileo asserted that there are no mechanical experiments that can be made inside the rocket that will tell the occupants that the rocket is moving . The question ``are we moving'' has no meaning unless we specify a reference frame (``are we moving with respect to that star'' is meaningful). This fact, formulated in the 1600's remains very true today and is one of the cornerstones of Einstein's theories of relativity.
*****************************************************


OK ABOVE THEORY
BELOW MY QUESTION


CAMERA and BULB ARE INSIDE  AIRPLANE !
WE TURNED ON BULB  at one time
IT IS THE SAME EXPERIMENT
( bulb's power , size,  and camera  is the same inside both airplanes )



HOW BIG EM preasure IS PUSHING CAMERA INSIDE AIRLANE A/B ?
a) the same ?
b) not the same ?

Airplanes are in VACUUM and inside Airplanes we have vacuum !





« Last Edit: 21/03/2016 04:57:41 by marzosia2 »


 

Offline marzosia2

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Re: How big force is pushing Camera inside Airplane ?
« Reply #1 on: 21/03/2016 04:50:48 »
???
any two observers moving at constant speed and direction with respect to one another will obtain the same results for all mechanical experiments   
???

STRANGE  FACT  IT IS MISTAKE  or not ? ? ?

observer A = camera A
observer B = camera B

camera A anb B  moving at constant speed  and direction with respect to one another

??? "obtain the same results for all mechanical experiments ?" ??? Mistake ???
« Last Edit: 21/03/2016 04:54:57 by marzosia2 »
 

Offline marzosia2

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Re: How big force is pushing Camera inside Airplane ?
« Reply #2 on: 21/03/2016 05:00:01 »
1600 Galilean relativity /Natural Fall Law

1861 J. C. Maxwell, published his theory of electromagnetic fields and radiation, which shows that light has momentum and thus can exert pressure on objects.

conclusion :
Galileo didn't understand that EM preasure = FORCE ? for him this was not mechanical experiment !

Is motion relative ?  =  "To be" or "not to"  be for Einstein ?

Above I showed simple example .
Is it important problem for  Planet ?

 Distance D = constant !  ////   SUN's power =  constant !     

                                                             L1 , L2 , L3  ???


Planet ?

What About Newton ?

m -F1--> ... d ... Planet  >>> motion

Planet....d.... <--F2- m  >>> motion

m - mass
d -  distance
F1 , F2 gravitation force  famous G M*m/ d^2
F1= F2 ?  or NOT ?

Gravitation = EM signal  ?  WE HAVE INVERSE SQUARE LAW !
and EM signals are not moving with object ( not exist C+ motion )
 
What about atoms ?
center---electron

what about future in physics ? ....
« Last Edit: 21/03/2016 05:13:18 by marzosia2 »
 

Offline evan_au

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Re: How big force is pushing Camera inside Airplane ?
« Reply #3 on: 21/03/2016 08:26:11 »
Quote from: marzosia2
Airplanes are in VACUUM and inside Airplanes we have vacuum ! TRUE/FALSE
If I understand the question implicit in the diagrams: There is a flashbulb inside plane (or strobe lights attached to the plane)
  • A passenger inside the plane would see the light energy spread out like ripples on a pond, equally in every direction.
  • An observer outside the plane would see the light energy spread out with an emphasis in the forward direction. This is called relativistic beaming, and is utilized in X-Ray lasers and thought to be the reason that quasars can be seen far across the universe.   
The flash seen by a camera inside the plane will not change whether the camera is in front or behind the strobe.
However, the stationary camera will detect a different image depending on whether the plane is moving towards, away, or perpendicular to the camera.
 
The following users thanked this post: marzosia2

Offline Thebox

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Re: How big force is pushing Camera inside Airplane ?
« Reply #4 on: 21/03/2016 11:00:57 »
???
any two observers moving at constant speed and direction with respect to one another will obtain the same results for all mechanical experiments   
???

STRANGE  FACT  IT IS MISTAKE  or not ? ? ?

observer A = camera A
observer B = camera B

camera A anb B  moving at constant speed  and direction with respect to one another

??? "obtain the same results for all mechanical experiments ?" ??? Mistake ???

Have you gone rogue and changed your mind about  a joint venture?

Some advice - GIVE UP, they will never accept anything that affects what they already have even if presented in a gift box with a bow.



 

Offline marzosia2

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Re: How big force is pushing Camera inside Airplane ?
« Reply #5 on: 21/03/2016 12:20:45 »
The flash seen by a camera inside the plane will not change whether the camera is in front or behind the strobe.
However, the stationary camera will detect a different image depending on whether the plane is moving towards, away, or perpendicular to the camera.

???  I want  to help You  !
 it is very important problem to understand below ???
if below I showing not true please copy my post and mark mistake by red colour
THX


HE ESCAPING
HOW BIG FORCE IS PUSHING HIS BODY ?
the same force ? or not the same ?
( Laser's Power = CONSTANT)
 


source for above picture:
Special Relativity
From AstroEd




  I'm Able measure ENERGY
and trust me P=mV !



Laser it is not line TEMPERATURE ?




EM preasure is not moving with train ! ( not Exist C+V or C-V ) exist only C

signal started in SOME point in space ! 
this point is not moving with train !






F1 = F2 ? 

no WHY   ?
yes Why ?
EINSTEIN  yes/not ( show me here equations )  ?


me Marosz ( my own opinion )  No F1 >F2 because Earth is moving !
F1=F2 only if Earth is not moving  Respect to point in space where the signal started -  START POINT it is not real object but it is virtual stationary point   


---> 30 km/s  respect to what ?

HOW WORKS CAMERA ?




Stationary Situation

Bulb --------------camera  ! zero motion !
A

one sec. later

Bulb --------------camera  ! zero motion !
A


motion ?- NOT stationary situation 

Bulb --------D--------camera >>> motion

A


The Bulb started 3d signal in point A for distance D light need time t
after time t bulb and camera are in new position !

....d.....Bulb --------D--------camera >>> motion

A

distance d exist or not  exist ?
HOW BIG OBJECT IS ON PICTURE ?
THIS WHAT WE SEE IS REAL ? or Object is smaller ?
Dynamica ? it is not what we see ? can we measure TRUE ? 


 ( bulb and camera are moving respect to point A- we are sure that  bulb short time ago started signal in A point )





Important is this what we see OR this what we can FEEL (dynamica )  ?







HOW BIG FORCE IS REGISTERING EARTH ?

10 km/s
20 km/s
30 km/s

respect to OLD Position !



SPEED and FORCE relation
Exist ? not Exist ? 


FORCE is CONSTANT

OR 
force is going down if  speed RISE ?


HOW BIG FORCE IS PUSHING SAIL ?
constant ?
not constant ?
if exist motion force is going down ?
exist relation FORCE / Motion
?


FORCE [Newtons ] it is  this what  giving effect not  this what we see or other see !






« Last Edit: 21/03/2016 14:54:37 by marzosia2 »
 

Offline marzosia2

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Re: How big force is pushing Camera inside Airplane ?
« Reply #6 on: 21/03/2016 12:30:57 »


Joul / cubic meter = N*m/m^3 = N/m^2  (pascal ) !

cubic meter = m^3
R^3  it is very strong relation more stronger than  line function R^1 ! 

HOW BIG FORCE IS PUSHING CAMERA  INSIDE AIRPLANE A / B
THE SAME ? or  NOT THE SAME ?
WHAT IS THE REASON THAT I ASKING ....?
 

Offline Bill S

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Re: How big force is pushing Camera inside Airplane ?
« Reply #7 on: 22/03/2016 12:25:27 »
Quote from: Evan
If I understand the question implicit in the diagrams:

If you do, I suspect you will one of only two who do, and that's assuming Marosz understands them. :)
 

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Re: How big force is pushing Camera inside Airplane ?
« Reply #7 on: 22/03/2016 12:25:27 »

 

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