A number of hi res images have been included here in higher resolution. Feel free to use with attribution. Most normal images on this site are 1000 pixels wide and are are perhaps 200 k in size. If you need a bigger one for print media then ask me and I may be able to get a bigger resolution one.
For the Home Open day 2010, I got in the pool and also exploded watermelons. I had the usual array of projects set up indoors and various high voltage displays behind barriers. The Tesla coil was the highlight and double exposures under the Tesla coil were popular. There were about 70 people who came through. Maybe it was the free beer…
“Continue reading” for highlights of the displays. 3 videos and 18 photos.
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Around 200 projects based on lasers, magnetism, radioactivity, exotic materials, extreme LEDs, vortex generators, micro flamethrowers, light effects, and a whole lot more.
A Blu-Ray violet laser causes fluorescence in various fluids. Jump to the “Laser Fluorescence” page
Magnetic levitation above superconductors – Meissner effect. Jump to the “Superconductor” page.
A frozen banana can hammer in a nail. Jump to the “Nitrogen To Do List”
This AC spot welder uses a low voltage with very high current. Jump to the “Spot Welder AC” page.
Bernoulli levitation of a Hahn’s “light” beer can. Jump to the “Bernoulli Beer” page.
LED driveway run of a LED rope. Jump to the “LED rope tricks – 2” page.
Photography night March 09. A group of about 25 photographers most of whom came down from Perth visited on 28/3/09. Organised by Bruce Jorgensen and Graeme Minchin associated with the Photographers in Perth group.
“Continue reading” for more details and photos. *incomplete* Continue reading
Lens flares are common with a high intensity source of light such as the sun or a spark.
“Continue reading” for other lens flare examples.
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This standard screwdriver seems to be repelling a spark despite it being metal.
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Electromagnets don’t come bigger than this at my place. A big soft iron cored electromagnet is supporting a drill by the spade bit between the pole faces.
“Continue reading” for power levels and further information plus links…
Magnetic viewing film allows one to visualise magnetic fields easily. Of interest is the segmented field from the top magnet which is not apparent by just looking at it. The old AlNiCo bar magnet on the left has a very distorted field.
“Continue reading” for other examples, 4 photos and links.
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This is a magnetic field meter or Gaussmeter which uses a UGN3503 Hall effect device to drive a meter. It shows the magnetic field sensor reading the strength (in Tesla’s) of a small horseshoe magnet. The meter is not yet calibrated so the reading is not correct.
“Continue reading” for circuit diagrams and specifications. 2 photos and links…
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A Hall effect array is one of many different types of magnetic sensors.
“Continue reading” for interesting long exposures and construction. 5 photos and links….
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