TonyMcC

Reads rather like homework questions? If so have a go and show your attempts.

For capacitors in parallel the total capacitance is the sum of the individual capacitors (the opposite case to resistors). More capacitance gives the ability to store more energy. I mentioned the need to check the working voltage of the capacitors which is also known as the rated voltage. http://www.electronics-tutorials.com/basics/working-voltage-capacitance.htm It would be nice to know what the OP has in mind - but it seemed to me quite likely that she is just experimenting. A rechargeable battery might be better if she just wants to store a useful amount of energy.

To store the maximum amout of energy connect the capacitors in parallel. If the capacitors are polarised (marked +ve and -ve) connect all +ve trminals together and all -ve terminals together. Connect your battery via a resistor and if your capacitors are polarised make sure the +ve battery terminal is connected to the +ve terminals of your capacitor bank. With the sort of capacitors you are likely to have don't expect to do much with the stored energy. If your capacitors are marked with a working voltage make sure its at least as large as your battery voltage. Have fun, but take care should you wish to experiment with larger voltages.

In the British military using the 24 hour clock the terms AM and PM were never used (not being necessary). For the sake of clarity for all routine matters such as changing guard duties the time between 23.59 and 00.01 was never used. (Both times assumed to be midnight). i.e. 23.59 on the first of the month being the same time as 00.01 on the second of the month.

I would say science has always been there, even before church or government. The first primitive human who threw a stone at a an animal to get food and found he had to throw it at a steeper angle the further the target was away from him was applying science.

Can I suggest that if you find that you have a difference of opinion with someone and your "opponent" proves you wrong that you hold up your hand and admit you have been "beaten". Apologise if appropriate.

Isn't the fact that with compound interest you don't get the same amount of interest every day at the heart of this problem? As time goes on the amount of interest per day should increase because you get interest on the interest you have accrued.

In general amplifiers also amplify the input noise as well as the wanted input. Worse than that, they introduce extra noise from their own circuitry. This results in the signal/noise ratio at the output being worse than the input. Because of its random nature it is difficult to completely cancel noise effects. I'm not too sure whether today's technology can cope with this at such low levels of current.

Nobody is mentioning thermal noise. I feel this will swamp any current that can be counted as a small number of electrons per second. It is cerainly a problem with very sensitive equipment such as radar receivers.

I am having difficulty with the general idea that if a young person cannot immediately invent something new then he/she will be bored. When I was very young I wondered how things worked and took delight in building working models from "Meccano" and found things like chemistry sets, magnifying glasses and toy parachutes made from string and handkerchiefs all very interesting. Unfortunately I had to leave school at 16 and so never got to university. I am sure that given the chance I would have been satisfied with learning more and more of "what is" before going on to wonder about "what might be". I would think this kind of enquiring mind is common among young students that go on to study physics and science. Patience (imo) is not a necessary requirement where a genuine interest is present.

Perhaps there is too much analysis going on here. If a student genuinely finds physics and science boring and the arts and humanities interesting then perhaps they should study the arts and humanities. Whatever "floats your boat".

Good computer you've got there agentrnge - but didn't think you had enough time to wait for the answer to emerge - lol.

I would like to look at things the other way round. Technology has provided me with a work environment as I have been involved with cutting edge technology in one way or another for the whole of a working life. I am quite an ordinary person and there are countless others like me. Just about everything I have been involved with started out as an idea in the head of a scientist or was developed by a team of scientists.

I seem to remember something very similar to this quite recently. Dare I say it's a load of crap? I notice the thread title is "Mind boggler":is it some sort of word play on the word "bog"?

Just in case my post was open to misinterpretation I have added the word "personally" after the word "you" in two instances. I have previously indicated in earlier posts that the energy required for the output power comes from the fuel and this process ceases when the fuel runs out. I don't think there is any disagreement.

I don't think you have quite got it. I think the confusion arises because you are not dealing with a machine in what you might call the classical sense. In other words a machine consisting of things like pulleys, cogs and levers. You are dealing with a system where the output power and capacity to do work is much greater than you personally put in. Consider this example - you are a farmer and own a plough. You want to plough a field but pulling the plough up and down the field is beyond your strength. You could use a system of ropes, pulleys etc to allow you to do it, but your progress would be very slow. Alternatively you could use a couple of horses to pull the plough. This would enable you to plough the field in a much faster time and require much less work from you personally. Hope this helps.

I hope your "student" performed his duties satisfactorily after your instruction!

It's not my field so I don't understand all that you have said, but it certainly seems a very worthwhile thing you are working on and I wish you success for the future.

Sounds interesting. Did you have some particular purpose in mind for your compound. Some benefit in mind such as medical or industrial?

Ask either guard which door the other guard says leads to sudden death. Take that door (not the opposite door). I forgot to tell you the two guards were sumo wrestlers armed with machine guns lol.

I know absolutely nothing about string theory but I have this feeling that if strings are to be illustrated as wiggly lines then they should be sinusoidal. The sine wave seems intimately involved in nature, science, mathematics and engineering. Just a little fancy no doubt, don't take it too seriously!

Just realised this is the Homework Help so perhaps a little too much has been said already. I will just say YOUR work is what YOU do.

. You just died! But you are on the right track.

My first thought was if the calculations are properly formulated and applied there was certainty from the begining - i.e. there never was only probability. However in real life every now and then something might happen to upset this conclusion. e.g. a bird might swoop down during the process and collide with the coin. Perhaps in every physical application of a logical conclusion there is, however slight, some degree of uncertainty? Just musing!

All you are doing with the accelerator pedal is controlling the amount of fuel used by the cars engine. The engine does the work and gets its energy from the fuel. How much work does the engine do if you run out of fuel?