Nature moves in the form of a sine wave, be it an ocean wave, earth-quake, sonic boom, explosion, sound through air, or the natural frequency of a body in motion.
http://www.tek.com/Measurement/App_Notes/XYZs/
The design goal was to build a fairly simple device which allows to digitize signals with frequencies ranging from DC to around 1MHz with very long sampling buffer (i.e. millions of points).
http://www.triplespark.net/elec/analysis/USB-LiveOsci/
An ordinary TV has been turned into a digital storage oscilloscope with a sampling rate of 160 ksps. This article explains how to use an LPC2138 microcontroller to build a high-resolution system of your own.
http://www.circuitcellar.com/library/print/1106/Momontov-196/index.htm
http://www.qsl.net/g3pto/mmeter.html
http://members.tripod.com/michaelgellis/scope/amp.html
http://www.ee.washington.edu/conselec/CE/sp95reports/guterman/final/scope1.htm#hard
http://www.ee.washington.edu/conselec/CE/sp95reports/guterman/final/scope1.htm
Schematic for a lean, mean, four channel digital oscilloscope based on the 28-pin 16C55 HS PIC, a 64K x 4 DRAM, and a resistor network configured as a voltage dividing DAC. When the record button is pressed, the PIC captures and stores 64K samples from th
http://home.iprimus.com.au/vk3jaj/logic4ch/index.html
Miniature TV converted to simple oscilloscope - Notes on converting that old compact tv set or computer monitor into an oscilloscope. Proves very useful in line quality monitoring and other low frequency applications.
http://www.dansworkshop.com/Homebuilt%20oscilloscope.shtml
The proper techniques for using an oscilloscope are presented. From basic measurements to more advanced techniques.
http://www.doctronics.co.uk/scope.htm