Batteries - A to Z of Electronics

hksbloa93 Says:

Apr 27, 2012 - how did the scientists in the 19th century discover the vinegar thing?

MMinecrafTT Says:

Apr 13, 2012 - 4:12 sounds funny, lol

VitalElectrocomp Says:

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MrSmithChart Says:

Mar 5, 2012 - I'm pretty sure I'm in love.....

Demolisherr2 Says:

Feb 14, 2012 - that helped me alot thank you

startalentink Says:

Jan 31, 2012 - Well done very educational

DSbaby15 Says:

Jan 31, 2012 - A few years ago two parents went out for dinner. A few hours later the babysitter was calling to see if she could cover the clown statue in the kids' room. The father said " Get the kids out if the house, we'll cal the police, we don't have a clown statue". The "clown statue" was actually a killer that escaped from jail. If you don't post this on 10 videos tonight the clown will be in your bed at 3:00am with a chainsaw in his hand. Sorry don't want this to happen to me

TheBandScanner Says:

Jan 29, 2012 - Joseph Henry fan !

jlunn241 Says:

Nov 23, 2011 - have you been staring at the sun read something.

Technoguy3 Says:

Nov 5, 2011 - I've actually watched that video several times already. Maybe something just isn't connecting in my brain LOL. I'll go watch it again.

Volta500 Says:

Nov 5, 2011 - That's because of internal resistance in the battery. If it were a supercap you would be right. See afrotechmods video about supercaps for more on this. watch?v=EoWMF3VkI6U

Volta500 Says:

Nov 5, 2011 - Well, with my name I just have to respond. Never knew Volta was such a ladies man lol. Nicely done. Keep 'em coming!

zackthegoth Says:

Aug 18, 2011 - another youtuber lidmotor and I made basically a penny battery, mine is putting out 0.4v. lidmotor made one first then I tried it and it works!

Technoguy3 Says:

Jul 26, 2011 - If you touch a 9V battery to your tongue, why don't you die when you receive the electric shock? Amps = 9V/OHMs, so your body would have to put up a lot of resistance. Is that it? If there was a no-resistance path to ground that would be 9 Amps, and I know that's a heck of a lot more than what's needed to kill you.

RavenRof Says:

Jul 19, 2011 - Im in love. =3

GTXAbunada Says:

Jul 6, 2011 - This so f****** entertaining and informative, even though I know most of the stuff mentioned Its AMAZING. Please DO MORE

dcdean01 Says:

Jun 26, 2011 - A teacher once suggested that they may have been used for electroplating.

ChristianVdC Says:

Jun 22, 2011 - I LOVE YOU! 

queglay Says:

Jun 3, 2011 - itd be cool if you could go into a lead acid battery in more detail and show the relationship between electron flow and heat emission.

h23sirlude Says:

Apr 7, 2011 - thanks

LedgerLines Says:

Mar 27, 2011 - you are so damn cool Jeri, I don't think it's possible that I could idolize you any more. Thanks for geeking-out beautiful :) 23 yo Electronics Engineer in Dayton OH

nullsmack Says:

Mar 4, 2011 - I have the exact same cheap DMM from harbor freight. Yay!

vmelkon Says:

Mar 1, 2011 - Zinc makes Zn 2+ ions, not Zn +. Also, I believe that the copper is already coated with copper hydroxide and carbonate. When you connect, each zinc atom loses 2 electrons while each copper ion gains 2 electrons and becomes copper metal and releases hydroxide and carbonate ion into solution. This same technique could be used on silverware to reduce silver compounds to silver metal.

TheSolarmike Says:

Feb 9, 2011 - Do you just go out and buy 40 nine volt duracells? Once I bought 16 nine volt batteries and did the same thing. I have six 36 volt dewalt LiFePO4 batteries! and counting

jeriellsworth Says:

Jan 31, 2011 - I've received a lot of emails about this. It seems people feel very strongly in both directs. I hope they find it was plating, which is more geeky than protecting scrolls.