by AntDavison » Wed Aug 24, 2005 8:22 am
Hiya Thrival
thats a good experiment
i think with the inverted u tube, the trick will be to maintain fluid thru-out the tube, ie, so you dont get an air bubble separating the electrolytes
with the coiled tube design, or S-on its side the it may be advantageous to put a T-connector at the top/bottom of the middle of the coil, with the 3rd part of the T connected to an(other) upstanding tube, whose height is greater than the height of the two electrolyte cells ... this could be connected to a vacuum pump to make sure there is no air bubbles present in the link, and then the connection to that vaccum source would be closed
the idea of the coiled portion or sideways S shape (which is of course the same as a coil) is that there will be a lot of tolerance as to where the graviometric interface actually is
if the height of the coil is just a little less than the electrolyte level then there will be less chance of the electrolytes getting mixed up in different portions of the tube
recalling how they filled up the gravity daniell cell (from memory, i think) the CuSO4 was heavier and put in first, and filled half way up, and the copper cathode was in the bottom 1/3 of the cell. The zinc anode was in the top 1/3. the ZnSO4, was then carefully and slowly poured on top, like an expensive muli-coloured multi-alcohol multi-layered cocktail. Then it was left to stand and settle for an hour. Good for c19th stationary telegraph applications but probably not useful for a moving car going up and down hills