# The Naked Scientists Forum

### Author Topic: Einstein postulate  (Read 1049 times)

#### EEK

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##### Einstein postulate
« on: 11/04/2015 08:03:45 »
New theory "The speed of an object has the same value in all inertial frames of reference if it is less than the speed of moving frame"

Reasons: As laws of physics are the same in all inertial frames of reference and also an inertial system has no control over an object if moving at or greater than escape velocity within its system.

Example

An escape velocity of just 11.2 km/s is required to leave the planet Earth

Since speed of light (pulse) is way greater than the escape velocity of any inertial frame of reference except black hole therefore shouldn't a pulse of light clock be moving freely or independent of frame of reference of spaceship or any other arrangement carrying the light clock mechanism.

#### Colin2B

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##### Re: Einstein postulate
« Reply #1 on: 15/04/2015 08:55:24 »
New theory "The speed of an object has the same value in all inertial frames of reference ....

This can only be true if all inertial frames of reference move at the same speed.
As that is clearly not true due to the way inertial frames are defined, no amount of theory, reasons or discussion can make your new theory true.

#### PmbPhy

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##### Re: Einstein postulate
« Reply #2 on: 16/04/2015 17:03:01 »
Quote from: EEK
New theory "The speed of an object has the same value in all inertial frames of reference if it is less than the speed of moving frame"
You theory is incorrect. First of all the term "speed of moving frame" is meaningless without stating with what the frame is moving relative to. A clear counter example of your assertion is that of a car. Consider an inertial frame of reference S. In S there is a rocket moving at 17,000 mph. Observe the rocket in a frame which is the rocket is at rest. Then the speed of the rocket is 0. Therefore your assertion is wrong.

#### yor_on

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##### Re: Einstein postulate
« Reply #3 on: 25/04/2015 18:49:15 »
You can also see it as all frames of reference moving uniformly is equally 'fast'. And that one then be translated into not 'moving' at all. a weird thought but complementary to the ideas that all uniform frames of reference must measure 'c', no matter their 'relative motion'.

#### The Naked Scientists Forum

##### Re: Einstein postulate
« Reply #3 on: 25/04/2015 18:49:15 »