I believe it's a great application of Pascal's Law. Are there ways to overcome it? I mean, not having the fluid drop through the tube. One way I Know is to put a denser fluid in first and on top of it a comparatively less dense one.

Answer if you want to: Also are there other toys which can aid a 5-7 year old learn concepts of science and also the equipment required should be very minimal.

  • $\begingroup$ I'm not sure I see the connection to history here. It seems to be a question about a physical principle. $\endgroup$ – HDE 226868 Dec 20 '15 at 14:56
  • $\begingroup$ This is a good question but it does not fit to the scope of this site, according to the help center. $\endgroup$ – Alexandre Eremenko Dec 20 '15 at 16:01
  • $\begingroup$ @AlexandreEremenko : Would you suggest the Physics page? Or if possible can help me 'migrate' this question from here to the Physics site? $\endgroup$ – Wave Metric Dec 20 '15 at 16:21
  • $\begingroup$ @Wave Metric: you may try of course. There is no "science education SE" as far as I know. $\endgroup$ – Alexandre Eremenko Dec 20 '15 at 16:58
  • $\begingroup$ Now on Physics. Therefore, I'm closing the HSM version of this question. $\endgroup$ – HDE 226868 Dec 20 '15 at 18:13

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