seismograph

[Karin]

Would anyone share their method for making a seismograph?

[Ocker]

From memory Silicon Chip Magazine had a project a couple of years ago
If you contact Jaycar electronics they usually make a kit to any SC project

[Ian]

There is a nifty little iPhone/iTouch app called "iSiesmometer" that gets a lot of use around here.

Ian

[merilyn]

Ian - so now all they need to do is build an iphone!

[Jen1]

love it! thanks Ian, I showed the head of science and now he has a legitamate reason for buying an ipad!

[Ian]

Sorry Merilyn, I was not able to work out the details for making my own iPhone. My "Reverse Engineering" skills are deteriorating with old age.

I seem to remember that one of our teachers would suspend a large mass (200 - 500g) from a retort stand with a spring. She would tape a texta to the mass and move a piece of paper under the contraption as somebody bumped the desk. The vibrating desk (relative to the texta) would transcribe a wobbly line on the paper.

The iPhone app is still better, cos it graphs movement in 3 dimensions, not just 1, but it does not work well without an iPhone/iPad/iTouch. You have got me there. Perhaps you could tape the texta to your Windows7 phone and suspend it from a retort stand with a spring???

regards
Ian

[Jazz]

questacon site
http://www.ga.gov.au/image_cache/GA7169.pdf