How did Moaning Myrtle Make the Water Splash?

[davewitley]

No: HPFGUIDX 93401

Bobby wrote:

> Here is another trivial problem I don't understand: In COS, 
Moaning 
> Myrtle made a splash in her restroom when HRH were there — but how 
> did she move the water?  

JKR's other ghosts do interact with matter.  They are visible, and 
they can see; light is just as real as water.  They speak, and can 
hear, so they interact with motion in the air.  They seem cold when 
they pass through people, another physical phenomenon.

Also, they tend to hang around the same location, suggesting quite a 
fundamental bond - it seems that when Binns died he carried on 
literally where he left off, getting up one morning as a ghost.

David