Baluncore's latest activity
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Baluncore replied to the thread Misc. Nonlinear rubberband type thing - "k" dropping fast as it is stretched.A piston in a cylinder, like a bicycle pump, that is connected to a balloon. As the piston moves, high pressure is needed to begin... -
Baluncore replied to the thread Electromagnet magnetic field issue.Symmetry is not a likely reason for magnetic differences. Open gaps in the magnetic path, are a more likely cause. What material is...
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Baluncore replied to the thread What papers is the CO2 climate change theory based on?.Here is the short list of points in Florida that are at or above 50 feet...
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Baluncore replied to the thread Electromagnet magnetic field issue.That will change the magnetic properties, but it would actually harden it, and make it brittle. If you let mild steel cool slowly, then...
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Baluncore replied to the thread Electromagnet magnetic field issue.That is not critical. Use the greatest available diameter unless the magnet is switched on and off very rapidly. Use an uncoated iron...
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Baluncore replied to the thread Electromagnet magnetic field issue.You should try soft iron or mild steel for the pin, not stainless or high tensile steel. The more the pin material costs, the worse it...
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Baluncore replied to the thread Electromagnet magnetic field issue.Yes, check the current tomorrow. Maybe the 12 V supply has insufficient voltage under load. Is the pin made from iron, steel, or maybe...
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Baluncore replied to the thread Electromagnet magnetic field issue.Is it using an AC or DC supply ? Is the wire the same gauge or diameter ? Can you measure the coil current ?
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Baluncore replied to the thread Automotive Motor for slider crank.There are too many possibilities. Almost any small electric motor will do the job. How you construct the slider crank, and mount the...
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Baluncore replied to the thread B Could we ever create a black hole?.So you want a handy 1 kg black hole to pass around the classroom ? It will be smaller than a normal proton, how will you hold it ? How...
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Baluncore replied to the thread I The Physics of unloading sand from a barge.Vibration is used to remove air bubbles from concrete, and would separate excess water from more dense sand, thickening the fluid. The...
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Baluncore replied to the thread I The Physics of unloading sand from a barge.You start with the pump input pipe resting at a low point on the surface.
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Baluncore replied to the thread I The Physics of unloading sand from a barge.The sand in the barge was initially saturated. The pump inlet was placed on top of the load at the start, then the hoses were used to...
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Baluncore replied to the thread B Why can't Solar panels be hemispherical, or a curved strip type?.On pitched roofs, we have a constraint that requires the panels not protrude significantly beyond the existing roof profile. That...
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Baluncore replied to the thread I Off resonance driving of a MW/RF cavity.At 100 MHz, the 10 GHz cavity would be well below the cut-off frequency. Depending on the cavity coupling technique, it would appear as...