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Antonio Lao
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Is the use of a frame of reference for the sole purpose of defining a distance?
Can distances be defined without a coordinate system?
Can distances be defined without a coordinate system?
Antonio Lao said:Is the use of a frame of reference for the sole purpose of defining a distance?
Can distances be defined without a coordinate system?
Isn't that what Ernst Mach was up to, using solely the relative distances between the particles as parameters?Antonio Lao said:Is the use of a frame of reference for the sole purpose of defining a distance?
Can distances be defined without a coordinate system?
Antonio Lao said:Is the one and only reference frame (ether frame) another word for absolute rest? And if there are many reference frames can each defines a relative rest?
Michio Kaku said:From now on, they must be treated as two aspects of the same quantity: space-time. Thus adding a higher dimension helped to unify the laws of nature."
arildno said:Isn't that what Ernst Mach was up to, using solely the relative distances between the particles as parameters?
Worldlines seem much more "realistic" than imaginary paths and tangent vectors. Coordinate independence, is very interesting.
Antonio Lao said:sol2,
Space is basically three dimensional. Can subtracting dimension (say from 3 to 2, 2 to 1, 1 to 0) also helped more to unify the laws of nature?
A reference frame is crucial in scientific research because it provides a consistent and objective point of view from which observations and measurements can be made. Without a reference frame, it would be difficult to accurately compare and interpret data, as there would be no standard frame of reference.
A reference frame determines how we perceive motion. For example, if we are standing on a moving train, our reference frame is the train, and everything outside appears to be moving in the opposite direction. However, if we are standing outside the train, our reference frame is the ground, and the train appears to be moving. This highlights the importance of choosing the appropriate reference frame in scientific research.
Yes, a reference frame can be changed or manipulated depending on the needs of the experiment or observation. For example, in studying the motion of a car, the reference frame can be changed from the ground to the car itself, or to an outside observer. However, it is important to clearly define and state the chosen reference frame in order to accurately interpret the data.
An inertial reference frame is one in which Newton's laws of motion hold true, meaning that an object will remain at rest or in uniform motion unless acted upon by an external force. A non-inertial reference frame is one in which these laws do not hold true, such as in an accelerating or rotating frame. In scientific research, it is important to choose an appropriate reference frame that follows the laws of motion in order to make accurate observations and measurements.
The choice of reference frame can greatly impact the outcome of an experiment. Choosing an inappropriate or non-inertial reference frame can lead to inaccurate measurements and conclusions. It is important to carefully consider and define the reference frame in order to ensure reliable and valid results.