A couple of questions.

Space/Science » in reply to Maxwell's silver hammer.

RobVG — 5/3/2013 2:23:13 AM (archived)

I figure you might be able these.

Does slowing the magnet in it's trip down the tube require energy?

Second question. Where does the energy of capillary action come from. A paper towel lowered vertically on a pool of water draws the water up the fibers. Work is being done to lift the water. What's the source of the energy?

The whole thread (12 posts)

I am sure you all know this ... - Jody - 5/1/2013 3:04:43 AM
- Maxwell's silver hammer. - ER - 5/1/2013 4:00:24 AM
  - A couple of questions. - RobVG - 5/3/2013 2:23:13 AM
    - I don't remember enough of my physics to answer either of those with certainty. - ER - 5/3/2013 4:19:54 AM
      - Found one of them - RobVG - 5/3/2013 2:28:08 PM
        
        An experiment (I just performed) - alcaray - 5/3/2013 11:32:04 PM
        
        We learned that in high school chemistry class. - ER - 5/4/2013 2:37:26 AM
        
        Surface Tension. - podrock - 5/4/2013 3:37:19 AM
        
        That's beautiful. n/t - ER - 5/4/2013 4:32:22 AM
        
        We've all been playing with water since mom bathed us in the kitchen sink. - alcaray - 5/4/2013 4:07:14 AM
        
        Be careful bathing babes in the sink - ER - 5/4/2013 4:31:35 AM
        
        I was wrong about the capillary action - ER - 5/3/2013 9:13:52 PM

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