Drawbacks of Rutherford's conclusions

[Docscientist]

Rutherford proposed that electrons moved in orbits around the atom.It had a drawback.It was said that "objects which move in a circular orbit will experience acceleration despite it's constant speed" Why is it like that ? Is there any reason for such an acceleration ?

 

[DrClaude]

The velocity vector is continuously changing direction. That corresponds to acceleration (you can see it in terms of the components of the velocity vector, which are continuously changing).

 

[Docscientist]

The velocity vector is continuously changing direction. That corresponds to acceleration (you can see it in terms of the components of the velocity vector, which are continuously changing).

Correct me if I am wrong.Velocity with continuous change in direction leads to acceleration.

 

[DrClaude]

Correct me if I am wrong.Velocity with continuous change in direction leads to acceleration.

I don't like the use of "leads". It is not a causal relationship. I would use "corresponds to". You need to apply a force to change the direction, hence there is an acceleration.

 

[Docscientist]

I don't like the use of "leads". It is not a causal relationship. I would use "corresponds to". You need to apply a force to change the direction, hence there is an acceleration.

Just one more silly question.Planets do move around the sun in an elliptical orbit just as how electron moves around an atom.But planets do not show any electromagnetic radiation as they are not charged just as how an electron does if it was to move in an orbit.The question is why aren't planets charged ?

 

[Borek]

why aren't planets charged ?

I doubt they aren't. But the charges are way too small for being important (it is charge/mass ratio that matters).