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Albums |
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| User galleriesThis category contains albums that belong to Coppermine users. |
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572 |
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| 572 files in 13 albums and 2 categories with 12 comments viewed 15954 times |
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Pencil Lead Resistors647 viewsA closeup shot of one of the "resistors", with the tube of leads below it.Apr 12, 2007
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Pencil Lead Resistors428 viewsHere is a shot showing all 5 "resistors". I measured one with a multimeter to be approximately 1 ohm. Using 5 leads plus the nichrome wire itself, the current flow was about 1.6A on a voltage of approximately 12V (not measured, but it is a car battery), meaning the total resistance of the circuit was about 7.5 ohms.Apr 12, 2007
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Pencil Lead Resistors Styrofoam Cutting Setup372 viewsMy mom wanted me to cut some Styrofoam. I had a nichrome wire to use as the cutting element, but the only power supply I had capable of delivering the right amount of power was an emergency car battery. I used 5 mechanical pencil leads (0.9mm diameter, 60mm length) wired in series to form a high-power current-limiting resistance.Apr 12, 2007
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Pencil Lead Resistors Conducting Current376 viewsThis shows the battery switched on in the background and the current measurement (1.53 amps) in the foreground.Apr 12, 2007
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Jiu Zhai Gou59 viewsApr 11, 2007
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Me at Jiu Zhai Gou71 viewsApr 11, 2007
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Jiu Zhai Gou77 viewsApr 10, 2007
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Jiu Zhai Gou63 viewsApr 10, 2007
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Jiu Zhai Gou59 viewsFeb 03, 2012 at 08:02 AM
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Bell Sweeping Instructions365 viewsThe official directions on how to sweep. Page one of three.Feb 02, 2012 at 12:04 PM
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Pencil Lead Resistors647 viewsA closeup shot of one of the "resistors", with the tube of leads below it.Feb 02, 2012 at 12:03 PM
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Pencil Lead Resistors428 viewsHere is a shot showing all 5 "resistors". I measured one with a multimeter to be approximately 1 ohm. Using 5 leads plus the nichrome wire itself, the current flow was about 1.6A on a voltage of approximately 12V (not measured, but it is a car battery), meaning the total resistance of the circuit was about 7.5 ohms.Feb 02, 2012 at 12:03 PM
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Pencil Lead Resistors Conducting Current376 viewsThis shows the battery switched on in the background and the current measurement (1.53 amps) in the foreground.Feb 02, 2012 at 12:03 PM
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Pencil Lead Resistors Styrofoam Cutting Setup372 viewsMy mom wanted me to cut some Styrofoam. I had a nichrome wire to use as the cutting element, but the only power supply I had capable of delivering the right amount of power was an emergency car battery. I used 5 mechanical pencil leads (0.9mm diameter, 60mm length) wired in series to form a high-power current-limiting resistance.Feb 02, 2012 at 12:03 PM
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Laptop Surgery103 viewsFeb 02, 2012 at 11:03 AM
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Laptop Surgery54 viewsMy laptop was overheating so badly that the thermal protection failsafe kept kicking in and shutting it down while I was trying to do stuff. So I performed some minor surgery on it to replace the thermal compound between the CPU and the heatsink. I also did a bit of dusting :)Feb 02, 2012 at 07:32 AM
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