science fair

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Present some research on the early days of electriciy. No, not something as obvious as Ben with his kite and key, but something along the lines of Leyden jars, Ohms Law, guttapercha, dynamos, etc.










































Guttapercha? Yea, you're gonna look that one up, aren't you?
heehaw.gif
 
480sparky said:
Present some research on the early days of electriciy. No, not something as obvious as Ben with his kite and key, but something along the lines of Leyden jars, Ohms Law, guttapercha, dynamos, etc.










































Guttapercha? Yea, you're gonna look that one up, aren't you?
heehaw.gif
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they used that in my root canal and old waterproof insulation :grin:
 
Originally Posted by qcroanoke
How about an electrical installation that everyone here agrees is NEC compliant?
:eek:)


Jraef said:
LOL, come on, it at least has to have some chance of being a possibility!
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oops! I thought the OP said science fiction not science fair!
LOL!
 
I'd recommend that rather than trying to find something 'new' instead pick an old standby and then do it carefully and well as a proper experiment, where you don't know the answer ahead of time.

-Jon
 
Third place winner for my daughter in 7th grade - she strapped on pulse monitors (used while exercising) onto her brother, herself, and me while we played two-person Nintendo video games against each other - her idea. We recorded pulse readings at least every 5 seconds, noting details about what was happening in the game such as who was winning, etc.

We expected the pulse of either of the players who were losing at any given time to rise as they were angry, frustrated, or disappointed. :mad:

What we found was:
For 12 yr old daughter, pulse went up while winning
For 8 yr old son, pulse went up while losing (up a lot!)
For me at 35 yrs old, pulse went up while winning.

Results were verified on other girls and boys their age, and typically followed suit.

Kent
 
typical causes of fires in modern electric bldgs (overloads as opposed to short ckts/grnd fault) and why overloading ckts is insidiously more dangerous.
 
electricalperson said:
i had my dad help me on a few projects before. i dont think its cheating just as long as the kid helps and the father doesnt do it all. i think all parents should be part of the project especially if its electricity
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I agree totally with you. But in this case you could tell that the kid (5th graders) just watched as dad worked. We determined this by looking at all the others. It was just "too" good!
 
qcroanoke said:
How about an electrical installation that everyone here agrees is NEC compliant?
:eek:)
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Well, is this commercial or residential? 2003, 2005 or 2008 code? More importantly, what section of the NEC covers display work?:rolleyes:;):grin: That one's a little too wide open.

KentAT said:
we played two-person Nintendo video games against each other - her idea
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That sounds like a good excuse to get a Wii!:grin:

How about explaining the science behind AFCI Devices, you know how they work, why they're (semi) important, what they save you from, et. al.
 
KentAT said:
Third place winner for my daughter in 7th grade - she strapped on pulse monitors (used while exercising) onto her brother, herself, and me while we played two-person Nintendo video games against each other - her idea. We recorded pulse readings at least every 5 seconds, noting details about what was happening in the game such as who was winning, etc.

We expected the pulse of either of the players who were losing at any given time to rise as they were angry, frustrated, or disappointed. :mad:

What we found was:
For 12 yr old daughter, pulse went up while winning
For 8 yr old son, pulse went up while losing (up a lot!)
For me at 35 yrs old, pulse went up while winning.

Results were verified on other girls and boys their age, and typically followed suit.

Kent
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what nintendo did you use? when i hear nintendo i think of the old 8 bit system i used to have
 
This one was the Nintendo 64. I think that was the 3rd , after regular Nintendo and then SuperNintendo.

I gotta say, although serious gamers like my son must have the latest PS3, XBox, and the latest games, the N64 and now the Wii are more fun for playing games with family and friends of different ages and skill levels.

My daughter is in college now, and she tells me of how she ends up playing some of the same games (Mario Cart, Skyfox) at school in some guys' dorms and beats them!
 
How about challenging some grimmly accepted "truths" such as running all the hot conductors in the same conduit as the neutrals.
You could set up say 3 circuits both ways, seperate and together and use a thermometer to measure the dirrerence.
~Peter
 
As long as we have this free help from the science fair crowd available, maybe we can clear up this business about super bends.
Materials would include some sticks of EMT, couplings, some wire and some type of pull-meter.
I'll provide some nice 12" radius bends in 1/2" EMT [free delivery within 6 blocks of downtown San Diego].
Also check if the pulling force calculations are true.
~Peter
 
This message has been deleted by charlie. Reason: This is advocating intentionally putting someone into a circuit.
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And how many of us stood in a circle of 10-20 people holding hands in series with a piezoelectric BBQ striker?

Momma says "stupid is as stupid does"

I do like some of the ideas in this thread. I've got a few years till the science fair stage though. (She starts K. in Sept) By then the video games will likely involve some kind of cranial implant, Johnny Mnemonic-style...
 
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