Thread: Science fair

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    ​Make a presentation about Gravitational Time Dilation, and how time actually elapses at different rates for everyone.
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    Quote Originally Posted by Aborted View Post
    ​Make a presentation about Gravitational Time Dilation, and how time actually elapses at different rates for everyone.
    Wait what? It does?
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    Quote Originally Posted by Vice-Versa View Post


    Wait what? It does?
    Yep, it's all based upon proximity to a gravitational body, hence the Earth. Though every object with mass has a gravitational field, where you're located, your elevation, and even body mass plays a role.
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    talk about quantum theory
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    Quote Originally Posted by Time View Post


    Yeah i thought of doing that, but i need something to demonstrate a working example or something .
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    You can do Diamagnetics. If not then the examples of multiple neuro-incubated synapse regulating chemical irregularities within the frontal cortex of the cerebrum altered by inhibiting the GABA receptors for improving the neuroplasticity of Alzheimer victims.

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    If I could go back in time and do a science fair project, I would probably implement something cool with mechanical logic devices. A lot of people have a hard time visualizing how a mechanical system could do something like add binary numbers. The thing is, doing this would be pretty simple, and I think it would amaze a lot of people.

    https://goldfish.ikaruga.co.uk/logic.html

    That gives you boolean logic operations for AND, OR, and NOT (and even a flip-flop). That is all you need to build any mechanical combinational or sequential logic circuit. I'm not sure where you'd hit a limitation, but I am sure if you play around with it you could figure out something cool to do with it. If you wanted to do sequential logic (to build a state-machine, which would be really cool but you can have awesome examples without it, like a binary adder\subtractor)

    Really though, it is incredibly simple to dervie the boolean expression for binary addition, and the circuit is relativley simple to. In an age where technology is coming to be incredibly important, a science fair project that demonstrates this in a way people can 'see' would be really cool. You'll have to do some research on the topic (and you can ask me for help regarding it.)

    Here is a really simple 4-bit full-adder circuit. Subtraction would also be incredibly easy to do as well (you could also teach students about 2's complement etc, and about the primitive gates in binary logic)

    Then maybe build the same circuit on a breadboard for contrast (use a voltmeter to measure the outputs, I feel like LEDs might abstract the viewer too much...)


    You could design a simple state machine as well, they're relativley simple once you get the hang of it.
    Last edited by radnomguywfq3; 07-07-2013 at 06:18 PM.



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  16. #28
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    Quote Originally Posted by Aborted View Post
    ​Make a presentation about Gravitational Time Dilation, and how time actually elapses at different rates for everyone.
    Well in the land of curry, you can't really be sure whether the person you are exhibiting your project to actually has any sense in him hence it is as good as teaching a fish to climb a tree.

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    talk about quantum theory
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    Quote Originally Posted by Lehsyrus View Post
    You can do Diamagnetics. If not then the examples of multiple neuro-incubated synapse regulating chemical irregularities within the frontal cortex of the cerebrum altered by inhibiting the GABA receptors for improving the neuroplasticity of Alzheimer victims.
    Yes i totally get that.

    Quote Originally Posted by Adolfmay View Post
    If I could go back in time and do a science fair project, I would probably implement something cool with mechanical logic devices. A lot of people have a hard time visualizing how a mechanical system could do something like add binary numbers. The thing is, doing this would be pretty simple, and I think it would amaze a lot of people.

    randomwraith.com - lego push pull logic gates

    That gives you boolean logic operations for AND, OR, and NOT (and even a flip-flop). That is all you need to build any mechanical combinational or sequential logic circuit. I'm not sure where you'd hit a limitation, but I am sure if you play around with it you could figure out something cool to do with it. If you wanted to do sequential logic (to build a state-machine, which would be really cool but you can have awesome examples without it, like a binary adder\subtractor)

    Really though, it is incredibly simple to dervie the boolean expression for binary addition, and the circuit is relativley simple to. In an age where technology is coming to be incredibly important, a science fair project that demonstrates this in a way people can 'see' would be really cool. You'll have to do some research on the topic (and you can ask me for help regarding it.)

    Here is a really simple 4-bit full-adder circuit. Subtraction would also be incredibly easy to do as well (you could also teach students about 2's complement etc, and about the primitive gates in binary logic)

    Then maybe build the same circuit on a breadboard for contrast (use a voltmeter to measure the outputs, I feel like LEDs might abstract the viewer too much...)


    You could design a simple state machine as well, they're relativley simple once you get the hang of it.
    I understand its and bits, will see more into that.


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