Science Fair Project help needed

[Rubycon]

Yeah but so would the current caused by the the thing going through a persons heart.

Clip on to thumb and pinky with aggressive alligator clips. Give them a pen and ask them to sign their name while the mag is cranked. :biggrin:

One can use their imagination as to other combinations that can be used without dangerous frib inducing currents.

 

[Matthiasa]

Yeah i suppose though if the clips pierce the skin that could do bad things to.

 

[drquest]

How is this poll science? By selecting a some sounds your daughter has made some observations about annoying sounds. What is the hypothesis being tested? How does the poll gather data necessary to validate/invalidate the hypothesis? Does the hypothesis include a reasonable physical mechanism connecting the hypothesis to the outcome of the poll?

I'm not trying to be a prick, really. When I judged a science fair a few years ago the panel of judges ran into this issue over and over again where opinion polls were presented as science. Opinion polls can be well constructed and statistically valid but that doesn't make them scientific.

The term "Science" is loosely based here, but it's more theory and results, based on hypothesis. The poll is just a part of this, not the whole deal.

 

[drquest]

Thanks for the votes everyone!

If someone can direct me to a better nails on chalkboard sound byte, let me know and I'll update it. The one on there was about as good as I could do via quick Google search.

 

[Matthiasa]

Thanks for the votes everyone!

If someone can direct me to a better nails on chalkboard sound byte, let me know and I'll update it. The one on there was about as good as I could do via quick Google search.

If you have something to record the sound take a some metal (forks or knifes work) and even just lightly rub it against glass( a plate would work) and well yeah... pain.... Would probably win with a good recording.

 

[drquest]

Keep the votes coming guys!

 

[YOyoYOhowsDAjello]

Thanks for the votes everyone!

If someone can direct me to a better nails on chalkboard sound byte, let me know and I'll update it. The one on there was about as good as I could do via quick Google search.

That doesn't sound very scientific

 

[jagec]

No "Honey, I'm pregnant, we need to get married"?