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... The clue was in the words " try another lie" for the reference to liar.. It is for that you should apologize. He had repeated the fact that of those eligible to vote a majority had voted. More importantly and in the context that your country has a representative democracy, he could have...

... I don't think that the exposed area would be even in the ballpark. PV panels have a particular problem that segments in shade rob energy from the exposed areas. Moreover bikes are usually vertical and say the chain guard, or pannier , the only items with appreciable surface area be at the...

.. calling Woosh a liar was uncalled for and should be apologised. He had merely repeated the fact not factoid, that the majority of people who voted 8 months ago did vote to leave. A wafer thin majority to be sure , but a majority

.. that would be nice as Mrs Brown says. To put numbers on it. The intensity is as you say about 1 KW per metres squared at top of atmosphere, and close to 800watt, peak value mid summer noon at our latitude. The efficiency of any commercial panel is touching 20% at present. So assume 160...

.. best advice would be to charge the battery after each trip. This stresses the lithium battery less. This is exactly contrary advice than would be appropriate for an older chemistry battery.

.. it seems that the discussion on water would be a red herring... Spain always vetoed a water supply and desalination is the way they get their potable water. Road washing and sanitation uses sea water.

I don't believe that Spain has the capacity within the EU parliament to veto a brexit deal. The qualified majority rule would apply. What it would have the capacity and competence to do is to lock the gate and stop any commerce or traffic into Spain.The uk failed to include Gibs status as a key...

.. if you were using a 12v and 2a your power would be 24w. and it would take about 25 hrs . Nice video

... A fair question deserves a fair answer . The SAdynahub, and it's more recent successors are brilliant devices. They have very low mechanical friction... Certainly compared with the bottle dynamo. They were able to produce about 6 watts of electrical power when cycled at a very high speed...

.... Could we see a 1:1 equivalence with the euro?. It would make tariff calculations simple.

Tommie , this is an argument you cannot win. Opinions no matter how strongly felt or expressed cannot withstand facts. Please go back and read my previous postings on this topic. The only scenario where regenerative braking and power harvesting would make any sense is there a person was going...

..... Would that be like the brexit thread debate?

... Woosh, you are missing my point, Every country has gripes with its neighbours, Nationalist tendencies will exacerbate these. The decision of the EU that it will negotiate on behalf of the 27 will have the effect of dampening them down for the duration of the negotiations. If the UK fails to...

... Yes I knew about the qualified majority, but note the following. 1, it reduces if ,even a little the UK ability to negotiate 2. Should the UK seek to extend negotiations beyond the march 2019, where it needs unanimous support, a huge amount. How many other wrinkles will come out of the...

... Come on don't keep us in suspense is it the Vatican or the Mafia or Fiat?

I suspect that the price of magnesium you are referring to to would be lab reagent spec. The same interview i referred to earlier had the Fraunhofer representative quoting 2 euro per kilo. Which is why he was dismissive about needing to recover it. The energy levels you quote are consistent...

.. the SA hub dynamo is a lovely bit of kit. They were highly reliable, still are, if you have one on a bike, and with very little mechanical drag as compared with the bottle dynamo . However once they are connected up to a load .. a bulb , there is an electromagnetic drag and a spinning wheel...

.. in their presentation, they quote the production of electricity as their benchmark. Using fuel cells they get more energy from the conversation of the hydrogen than from the thermal processes involved in converting a hydrocarbon into electricity.They do not consider burning the magnesium. In...

.. according to the figures provided by the Fraunhofer institute, the energy density of the magnesium hydride powerpaste is the same as hydrocarbons. So they would not be competing in the same space as rechargeable cells. The waste product would be a laxative, milk of magnesia!!! And could be...

... The technical challenge is non existent. Putting an extra generator on the bike , putting a power supply and switching it on when going fast or braking. Is all very feasible. The economics are flakey and more importantly the energy recoverable is not worth it. For the extra weight that the...