Paul Colby's latest activity
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Paul Colby replied to the thread I Linear generator prototype.I finally viewed the movie clip in post #15. It’s difficult to tell the magnet orientation from the video. I now understand and agree... -
The actual pole pattern of the individual magnets is essential to this analysis and discussion. It would be helpful if the poles of the...
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Paul Colby replied to the thread I Linear generator prototype.For a normal bar magnet magnetized along its long dimension, yes. However, I suspect the north (or south) pole of the magnet shown in...
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Paul Colby replied to the thread I Linear generator prototype.Moving the magnet he has on the outside of the coil might also increase the voltage generated. Putting a magnetic metal core through the...
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Paul Colby replied to the thread I Linear generator prototype.The magnets of the type shown are common in both in variable reluctance motors and in linear motors. Invariably the magnetization vector...
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Paul Colby replied to the thread Electromagnet magnetic field issue.Magnetic field lines are closed loops. The field generated (and the corresponding forces resulting) depend on the path reluctance of...
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Paul Colby reacted to Baluncore's post in the thread I How feasible is home radio astronomy? with
Like.
You are free to select your transform size. For one project, I was monitoring the background noise floor across the HF band from 1 MHz... -
Paul Colby replied to the thread I How feasible is home radio astronomy?.Well, being serious about doing science and being interested in learning how things work by doing them really aren’t the same. I had...
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Paul Colby replied to the thread I How feasible is home radio astronomy?.Before I get out a hacksaws and take multiple trips to the hardware store building an antenna, I thought I would first see if my Sdrplay...
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Paul Colby reacted to DDTJRAC's post in the thread In the early days of electricity, they didn't have wall plugs with Like.
Hello scientists, engineers, etc. I have not had any questions for you recently, so have not participated here. I was scanning some...
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I also ran across the discussion in the new persons thread. It got me interested in how long it would take the comet to travel...
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Paul Colby replied to the thread I How feasible is home radio astronomy?.Here’s a reference to some SDR evaluations...
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Paul Colby reacted to Baluncore's post in the thread I How feasible is home radio astronomy? with Like.
In the paper written by Jon Wallace (SARA), it appears, from the 24-hour records, that radio astronomy is being done. That system...
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Paul Colby replied to the thread I How feasible is home radio astronomy?.I'd prefer to have some assurances that any bumps measured actually came in through the antenna feed and not some random interference or...
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Paul Colby replied to the thread I How feasible is home radio astronomy?.Thanks. This will get a good read. Nice antenna design. I've dusted off my coaxial switch box which allows me to pragmatically switch...
