Recent content by Panda

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    Courses If I want to do cyborg, which courses should I take?

    There are people studying the sort of engineering that would be applied to a cyborg so whilst you can't sign onto a cyborg engineering course you can study relevant streams. Bio-Mechanics and Neuro-medicine would be the key foundations as you need to know how the brain works in order to...
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    Help - Expert Statistician required

    It saddens me that you show such little attention to people’s questions. If this problem was "A-Level" standard then one of the graduates looking at the data would have solved it by now. I may well offer the task to UWE, one thing that is for sure though is that based on this example of your...
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    Help - Expert Statistician required

    I am not asking for product design, we are capable of doing that ourselves. I am asking for advice on how to analyse data. The data analysis does not add any value to the product it just helps me understand the test results better. If it is easy then say it is easy. If it is difficult and...
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    Help - Expert Statistician required

    Not the most helpful answer. I am looking for techniques and pointers not consultants who don't have an understanding of the underlying physics. Once we have a technique that seems to work then we can look at investing in software and other tools to analyse the data.
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    Help - Expert Statistician required

    1st a bit of Background. I can't go into too much detail as there is huge commercial implications to the project, but I'll outline what were trying to do in general terms. And please remember I'm a rocket scientist not a mathematician so please go easy on me. My department hypothesised that...
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    Which watches are the best and why?

    It really depends on what you do with it. For Every day use I wear a Rado, I've worn it for 15 years now and never take it off before sticking my arm in car engines, or painting the house. There is one tiny chip in the face, and a small dent in the clasp from a fall that broke my wrist but...
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    How Can I Measure the Movement of a Loudspeaker Membrane?

    If you are finding the movement of a specific speaker with no specification as a project then you need to design an experiment to physically measure the deflection when a known amplitude sine wave is applied. If you just have the specifications then you need to relate the electrical power the...
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    What are the best batteries to power 2 perm 080 dc motors in an EV application?

    Batteries have two important parameters. the first is the Capacity in AH, the second is the Maximum Discharge Current. When you look at a data sheet you will find a nominal current value called "C" and everything is referred to this. You will get the stated capacity in AH when discharging at...
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    Some questions regarding EMC

    1. As already quoted if Lambda is large with respect to the cable length the cable acts as an Antenna so you need to look at it differently than just a cable with coupling. 2. The use of Transfer Impedance is generally used when doing EMC current injection tests. It is effectively treating...
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    Electric vehicle battery question

    There are two solutions. One is to use cells with high peak currents such as Li-Ion or Molibnium, but these are expensive and generally only used in Electric Cars as opposed to Electric Wheelbarrows unless weight is a driver above cost. The other option is to use motor control circuits to...
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    Understanding the Master & Slave Roles in IIC Bus Technology

    The bus is just the medium for transferring data between units. The Bus type defines the architecture and the signal types that can be used on the data wires. Master Slave Buses use a single Bus Controller (The Master) to control what and when information is transmitted on the bus. this...
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    Football freaks only - Which league is the best?

    Guiness Premiership. It is the only league in England playing Football. From a life long member of the Bath Football Club
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    Can a State Legislature Change the Mathematical Value of Pi?

    This sounds like a case of lazy journalism. Frequently journalists will take a quote from the internet without ever tracing the source. A classic I saw was when the satirical magazine Private Eye had a series of spoof interviews about celebrities and their favorite spoon. A month after I read...
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    Why does a rocket need fire in its tail

    When you combine the parts of the rocket fuel they spontaneously combust, this increase in temperature has to be balanced, the volume of the combustion chamber is fixed to the pressure of the hot gases produced has to go up. this pressure increase squirts out the back producing thrust. The...
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    Calculating Tension in a String Swung in a Horizontal Circle

    Just quickly flicking through your calcs on this one your ball does travel 2.5m in the horizontal but travels further than 1.3m in the vertical. This is because the ball has to come down through the top of the hoop. Look at this as a ballistic trajectory question. The ball will travel an arc...
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