![](pumpe_22530.jpg) | A LABORATORY PUMP WITH A PENDULUM |
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![](pumpe_22850.jpg) | I will demonstrate the laboratory pump to show the efficiency and differences, |
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![](pumpe_23055.jpg) | compared with current mechanisms. |
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![](pumpe_23140.jpg) | On one side, there is a physical pendulum, whose oscillation is easy to maintain. |
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![](pumpe_23275.jpg) | There is also a two armed lever, with the fulcrum, here. |
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![](pumpe_23380.jpg) | On the shorter arm we will not use the usual effect of the simple machine. |
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![](pumpe_23485.jpg) | Mechanical work is on the longer, heavier arm. |
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![](pumpe_23595.jpg) | Therefore, we actually get the counter-lever, |
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![](pumpe_23755.jpg) | since the pendulum is on the shorter arm. |
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![](pumpe_23890.jpg) | The pendulum is, of course, very easy to stop, |
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![](pumpe_24060.jpg) | but it is virtually impossible to do the same with the lever. |
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![](pumpe_24220.jpg) | Obvious advantage of double oscillations can be seen by the maximal effort here. |
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![](pumpe_24535.jpg) | The flow has been narrowed, so that the effort is maximal when pumping. |
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![](pumpe_24665.jpg) | It can bee seen how hard it is to pump water or any other fluid, |
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![](pumpe_24800.jpg) | using simple or double oscillations. |
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![](pumpe_24950.jpg) | Now, that the arm of the lever is similar to the arm of the pendulum, |
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![](pumpe_25085.jpg) | even the amplitude is similar. |
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![](pumpe_25169.jpg) | Therefore, it is easy to confirm that this is the more difficult way to do it. |
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![](pumpe_25350.jpg) | Anyone can try it. Because of the narrow flow, it is rather difficult. |
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![](pumpe_25650.jpg) | There is also something else...so, |
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![](pumpe_25765.jpg) | the oscillation of the pendulum causes the oscillation of the lever. |
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![](pumpe_25905.jpg) | So, what happens next? |
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![](pumpe_25990.jpg) | If you observe the oscillation without the pendulum, it last for a long time. |
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![](pumpe_26305.jpg) | However, when there is mechanical work involved, |
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![](pumpe_26715.jpg) | and if we press this spring to have oscillations, |
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![](pumpe_27000.jpg) | the energy is spent very quickly, i.e. it turns to mechanical work. |
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![](pumpe_27195.jpg) | Major amortization occurs because of mechanical work. |
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![](pumpe_27350.jpg) | We can try the same if put the pendulum out of balance, |
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![](pumpe_27525.jpg) | to see whether it will stop because of mechanical work. |
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![](pumpe_27710.jpg) | There is no major amortization, despite mechanical work. |
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![](pumpe_27865.jpg) | The pump and the narrow flow are creating a major resistance, |
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![](pumpe_28055.jpg) | but we still do not have reduced energy of the pendulum. |
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![](pumpe_28245.jpg) | This is a somewhat independent reference system, |
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![](pumpe_28365.jpg) | not connected to mechanical work. |
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![](pumpe_28470.jpg) | If the pendulum was suddenly stopped, and if we would have major amortization, |
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![](pumpe_28725.jpg) | the results would be the same as with the previous experiment. |
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![](pumpe_28840.jpg) | However, that does not happen, despite trying to stop this part. |
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