Uploaded January 2013 | Updated September 2026, 1 week ago
The Lego frame supports a tiny brass-rod cluster chime that produces a tiny sound with the help of 5,000 volts.
This 8"-high Lego cluster chimes was built with Lego Technic parts, 12 solid brass rods of various lengths, and four pendulums, each of which is made of a Copper Coated Bead (CCB) that is suspended on a sewing thread. The center rod is charged with a positive potential of 5KVolts while the surrounding 11 are electrically grounded. I selected solid brass rods rather than hallow pipes because their higher mass restricts their excursion when struck by a pendulum and thereby avoid shorting the circuit. The chimes are activated by two plastic-bucket charged capacitors that are connected in parallel, with a total capacity of 11.4 nF. The chimes are not driven directly by a power supply in order to avoid damaging the power supply in case of a short that occurs occasionally.
Check out a series of experiments driven by electrostatic force and produce random motion:
youtube.com/playlist?list=PLCbYhDNjOviH1-VtkL89zoZVc8kMfLVTH
#pendulums #chargedparticles #Seesaw #chimes #electrostaticexperiment
The Lego frame supports a tiny brass-rod cluster chime that produces a tiny sound with the help of 5,000 volts.
This 8"-high Lego cluster chimes was built with Lego Technic parts, 12 solid brass rods of various lengths, and four pendulums, each of which is made of a Copper Coated Bead (CCB) that is suspended on a sewing thread. The center rod is charged with a positive potential of 5KVolts while the surrounding 11 are electrically grounded. I selected solid brass rods rather than hallow pipes because their higher mass restricts their excursion when struck by a pendulum and thereby avoid shorting the circuit. The chimes are activated by two plastic-bucket charged capacitors that are connected in parallel, with a total capacity of 11.4 nF. The chimes are not driven directly by a power supply in order to avoid damaging the power supply in case of a short that occurs occasionally.
Check out a series of experiments driven by electrostatic force and produce random motion:
youtube.com/playlist?list=PLCbYhDNjOviH1-VtkL89zoZVc8kMfLVTH
#pendulums #chargedparticles #Seesaw #chimes #electrostaticexperiment
