Part 2: http://www.youtube.com/watch?v=weJ4JdFat8o<br />Part 3: http://www.youtube.com/watch?v=4pwI2NebT90<br />An unusual oscilloscope phenomenon!<br /><br />UPDATE: Please stop guessing. It is NOT the chair, it is NOT the noise, it is static electricity. And no it is NOT caused by the ground probe loop. See the Part 2 and Part 3 video where I prove that.
