It could be real handy because nobody walks around with a digital volt/ohm meter in their pocket everywhere.
Bustednuckles
Documenting The Death Of America
It could be real handy because nobody walks around with a digital volt/ohm meter in their pocket everywhere.
The cell phone touch screen depends on electrical capacitance (it actually listens for the “hum” that is all around your skin, called the “skin effect”). The capacitance of where your finger is touching the screen is sensed by the electronics and passes the XY co-ordinates to the OS of hte phone.
Standing the fuse on its end and touching the other end that’s waving around in the air (which you can’t see but the fuse wiggles when they do this) causes the fuse to conduct that skin effect through the fuse when it’s good, and you get no continuity with a bad fuse. Simple, right?
I’ve never tried this, but I imagine putting it in the center of the screen works the best. I won’t go into detail without lots of paper and pencil to draw out what the e-field is doing.
Cool, huh?
There will be a test tomorrow. I hope you kept good notes…
You might be right about the screen “listening” for ambient 60Hz electrical noise picked up by you as an antenna and conducted onto the screen, but calling this “skin effect” is a stretch! Skin effect describes currents in conductors…the higher the frequency, the more the magnetic effects force the currents onto the surface (skin) of the conductor…the effect is prevelant at RF and 60Hz is nowhere near that! I think I’ve just been baited!
I have noticed an odd phenomenon with my phone screen. Sitting in a meeting once, I placed a short bottle of water on my upturned phone screen… and then I noticed a movement out of the corner of my eye and saw the water bottle slowly migrating from one end of the screen to the other. I suspected it had something to do with the galvanic response of the screen at the time.
I have now taken to doing that as a way to pass time in boring meetings, and it’s caught the eye of others sitting near me. I get VERY quizzical looks when it’s happening and I just smile at them.
That sounds like some serious entertainment value. To bad I no longer have to attend those meetings
I’m still stuck on filling in the loops on all the typed letters and numbers.
Could be the place where you lay it down is not quite level, and it’s drifting downhill. Does it go the same way every time?
Lemme know.
Brilliant!! Now get me one of those beers.
Would it work on drones?