Ed Kennell 38,021 #1 Posted February 9, 2020 I know all you electrical wizards understand this, but can you explain to me (in hydraulic terms) how a rechargeable toothbrush passes current through a sealed nonconductor charging base. I understand electricity by relating it to hydraulics. Wire = pipe Resistance= pipe friction Voltage=pressure Amperage=flow Switch=valve Impedance= ??? About here is where I get stumped. Oh, and since this waterproof non-conductor charging system works on my toothbrush, Why isn't it used to recharge all devices. Instead of using 15 different connectors that are impossible to insert right side up without your glasses on. BTW, I laid my cell phone on the toothbrush charging base and it did not recharge. Hmm, could you make a charging cabinet that would keep 10 tractor batteries charged w/o connecting wires to the posts? 1 1 Share this post Link to post Share on other sites
rmaynard 15,427 #2 Posted February 9, 2020 Ed, do you know how a transformer works? There is a primary coil and a secondary coil. No electrical connection between them, yet 120V in, 12V out. Your toothbrush base contains the primary coil and the toothbrush handle contains the secondary coil. Setting the toothbrush on the base brings the two coils within the close proximity of each other, just like a little step-down transformer. In other words...it's magic. 1 2 1 Share this post Link to post Share on other sites
ebinmaine 67,266 #3 Posted February 9, 2020 A year or so ago @Mows4three Dave sent me a razor that recharges without the help of wires. Blew. My. Mind. 1 Share this post Link to post Share on other sites
bc.gold 3,403 #4 Posted February 10, 2020 Magnetic flux. 1 1 1 Share this post Link to post Share on other sites
WHX?? 48,764 #5 Posted February 10, 2020 Is that right Bob... I could see that... I always thought it was some kind of capacitive charging??? Interesting idea about the tractor batteries Ed . Can we make it 20 batteries tho? Most of mine are electric start! I fear we will both be dead when that is advented tho! 3 Share this post Link to post Share on other sites
JoeM 7,871 #6 Posted February 10, 2020 Impedance is the sum of the resistance and reactance in an AC circuit, especially helpful in system configurations. With that being said, the older I get, the more better it is to just know it does and not so much how! Don't want to clutter up with extra molecules of knowledge, I have been know to walk out to the garage and forgot why I went out there! (But I solved that problem, put a fredge out there with beer) No wasted trips, maybe. Hey ED, I doubt if impedance will solve your tractor battery problem, but being in Amish country, the answer may be closer than you think. How about something along the line of the automated milking machines? Vacuum couplers connected to a central charging unit with water cooled confubualtatory selective DC Voltage. I got to go out to the garage. 5 Share this post Link to post Share on other sites
squonk 41,020 #7 Posted February 10, 2020 Just make sure the points are set on the compression stroke! 4 Share this post Link to post Share on other sites
SylvanLakeWH 25,490 #8 Posted February 10, 2020 (edited) Very cool stuff... But... My head hurts... Edited February 10, 2020 by SylvanLakeWH 1 1 Share this post Link to post Share on other sites
953 nut 55,065 #9 Posted February 10, 2020 11 hours ago, Ed Kennell said: Impedance= ??? ED, being a turbine guy you can probably relate impedance to the vector analysis of forces applied to turbine blading. That should clear things up for you. As for the tooth brush charging and the phone won't, voodoo magic I guess, just brush twice a day and have regular check-ups. 6 Share this post Link to post Share on other sites
wallfish 16,983 #10 Posted February 10, 2020 Ed, Just brush what's left of your teeth and leave all the crazy science to those young whipper snappers. There's more important things to worry about like what's for dinner and finding that lost bottle of viagra pills. @bcgoldThat magnetic flux video is cool stuff. 1 6 Share this post Link to post Share on other sites
Ed Kennell 38,021 #11 Posted February 10, 2020 1 hour ago, 953 nut said: ED, being a turbine guy you can probably relate impedance to the vector analysis of forces applied to turbine blading. That should clear things up for you. As for the tooth brush charging and the phone won't, voodoo magic I guess, just brush twice a day and have regular check-ups. Now yer talkn this Billys language Richard. Some day we'll talk about how I developed a shaft triggered delay strobe system and Plexiglas portholes in the '60s that permitted documentation of visual cavitation on individually altered turbine blades. Prior to this, the "safe" operating range of a turbine was determine by measuring the HP and Efficiency losses. This new model testing process sped up the development of a hydro turbine that could operate at the lowest possible critical sigma and made it clear that cavitation and the resulting pitting damage occurred long before any loss in HP and Efficiency. 2 Share this post Link to post Share on other sites
pfrederi 17,663 #12 Posted February 10, 2020 Works by PFM (Pure F** Magic) 7 Share this post Link to post Share on other sites
Ed Kennell 38,021 #13 Posted February 10, 2020 10 hours ago, TractorJunkie said: I got to go out to the garage. Me too Joe. 4 1 3 1 Share this post Link to post Share on other sites
stevasaurus 22,706 #14 Posted February 10, 2020 How about a beer refrigerator in the bathroom for those who, while on the throne of knowledge, are looking around for something to think about. 5 Share this post Link to post Share on other sites
Ed Kennell 38,021 #15 Posted February 10, 2020 (edited) No suds fridge in my head Steve. But I have installed a hi-tech paper storage/dispenser system. APSD specs: holds 12 rolls any size single or double ply easy loading no batteries or magic charging system required automatic gravity fed roll positioning to correct height within reach of all size seated users NOS parts available at ACE or TSC If there is enough interest, I could offer these to supporters for 0.99 scents each with free shipping and an instructional DVD. Special rates on bulk orders. Please don't call for 30 minutes....I will be doing the required daily EPA testing of the system. Edited February 10, 2020 by Ed Kennell 6 Share this post Link to post Share on other sites
JoeM 7,871 #16 Posted February 10, 2020 2 hours ago, stevasaurus said: How about a beer refrigerator in the bathroom I did have one next to my shower in the basement. Wow, I can remember taking one of those super hot showers, getting a cold one out, and watching the steam roll up past the can! I think they have a Coors commercial similar to that now. Shower beers are awesome! 1 Share this post Link to post Share on other sites
stevasaurus 22,706 #18 Posted February 10, 2020 CAPTION THIS!!! 2 Share this post Link to post Share on other sites
953 nut 55,065 #19 Posted February 11, 2020 7 hours ago, stevasaurus said: How about a beer refrigerator Years back I had one of those on the side porch of my house, Keg inside and a tap on the door. Ended up having to move it into the house because so many local teens were helping themselves to a beer after school. I became a bit unpopular with their parents. 1 Share this post Link to post Share on other sites
