NIK282K – Science at Home

Over the past 10 years I have been building small scientific demonstrations out of readily available parts and materials. Falling mostly into the categories of physics and electricity I have made electric motors, physical sensors, particle detectors and even a working scale model of a mass spectrometer. Many of these projects are at a high school level, reasonably easy to reproduce by others and visually or audibly stimulating.

On a 2×6 space the model mass spectrometer (Paul Ion Trap), a tin-foil speaker with which people can interact, and the particle detector (Cloud chamber) which shows the path of cosmic rays and a heat pipe (like a superconductor for temperature).


The tin-foil speaker is a low voltage device (under 10v) and works by interacting the electric current in some foil with the field of a magnet. Viewers are invited to bring a magnet near the foil and discover that the the closer they get the louder the music becomes and the more visibly the foil moves.

The the heat pipe is a length of sealed copper tube that almost instantly conducts heat from one end to the other. Viewers may hold one end while the other is cooled, they will quickly feel the cooling at the end they are holding despite the length of the tube. They will then be invited to try the same experiment but with an empty tube and find that there is no perceptible change in temperature.

The model mass spectrometer and particle detector are both passive devices which are visually interesting but do not provide any real interaction.