Category Archives: Electricity

From Franklin’s kite to the latest experiments into the nature and use of electricity.

A Safe Source of High Current

The pistol-grip soldering gun, typified by the style originally offered by the Weller Company, makes a very convenient source of current. The soldering gun is, in effect, a power transformer with a large ratio of primary to secondary turns, and very heavy secondary windings. Continue reading…

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Magnetic Fields and How to Measure Them

Figure 2. Circuit diagram for a simple magnetic field readout.

There aren’t a lot of fields in physics to study beyond gravity, electromagnetism and the strong and weak nuclear forces. Since the last two are essentially impossible for an amateur to study, that only leaves gravitational and electromagnetic fields. Continue reading…

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High Energy Amateur Science – October Meeting

Our High Energy Amateur Science (HEAS) group held its annual conference in early October. Attendees came from around the country and even New Zealand. Many interesting topics were discussed and a few cool demonstrations conducted too. Continue reading…

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High Energy Amateur Science – September Meeting

HEAS0913_01

Our High Energy Amateur Science (HEAS) group held its September 2013 meeting on a beautiful Sunday in late summer. We discussed many interesting topics and had the “Light the LED” contest; demonstrated an electrostatic motor, diamagnetic levitation and a tuning eye tube. Continue reading…

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The Citizen Scientist, Way Back When

Some of you may know that in the beginning, there was The Citizen Scientist, an electronic newsletter of the Society for Amateur Scientists. Continue reading…

Posted in Amateur Science, Astronomy, Biology, Chemistry, Climate, DIY, Electricity, Electronics, Geology, Mathematics, Nature Study, Ornithology, Photography, Physics, Research Tools, Tips | 1 Comment

Sun’s Magnetic Field is About to Flip

“It looks like we’re no more than 3 to 4 months away from a complete field reversal,” says solar physicist Todd Hoeksema of Stanford University. “This change will have ripple effects throughout the solar system.” Continue reading…

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Amateur Astronomer Becomes First to Capture Photo of a Sprite Over the UK

Richard Kacerek spotted the sprite, caused by an upward lightning discharge five miles east of Hull.

An amateur astronomer has become the first person to capture a massive lightning strike ‘into space’ above the British Isles. Continue reading…

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An Addendum: Thermoelectric Generator #05

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And you thought I was done. Here we’ll discuss the final testing before moving on to other pursuits. Continue reading…

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Thermoelectric Generator Prototype #05, Part 5

TEG05_502

This time, we’ll focus largely on the Output Terminal Board – its layout and assembly. Though we’ll also discuss the DC/DC Converter and mounting the Heat Exchanger briefly. I bet you can hardly wait! Continue reading…

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Thermoelectric Generator Prototype #05, Part 4

This time, we’ll conduct the initial proof-of-principle test and demonstrate Thermoelectric Generator #05 to an audience of real people during one of our monthly science meetings. Continue reading…

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