Batteries: A Big Idea That Turned on the World

  Переглядів 778,884

SciShow

SciShow

День тому

Even though they power many of our modern conveniences, batteries have a long history. Hank explains how and why these marvels work and what they've been used for over the past 2,000 years!
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: dftba.com/artist/52/SciShow
Or help support us by subscribing to our page on Subbable: subbable.com/scishow
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Thanks Tank Tumblr: / thankstank
Sources:
engineering.mit.edu/live/news/...
chemwiki.ucdavis.edu/Analytica...
batt.lbl.gov/what-is-a-battery/
electronics.howstuffworks.com/...
• How to Make a Lemon Ba... -- scishow lemon battery
news.bbc.co.uk/2/hi/science/na... -- Bagdad batteries
www.allaboutbatteries.com/hist...
www.energizer.com/learning-cen...
www.howstuffworks.com/electric...
electronics.howstuffworks.com/...
www.scientificamerican.com/art... - rechargable
www.technologyreview.com/news/...
www.geek.com/news/how-a-lead-a...
auto.howstuffworks.com/fuel-ef...
electronics.howstuffworks.com/...
www.prlog.org/10815582-why-are...

КОМЕНТАРІ: 974
@JoyThirsty3
@JoyThirsty3 10 років тому
Energizer Hank--He just keeps going and going and going.... Don't ever stop, Hank!
@blistersonmyfingers9321
@blistersonmyfingers9321 2 роки тому
He didn't!
@skitsschist11
@skitsschist11 7 років тому
When life gives you lemons, make a battery.
@CWGminer
@CWGminer 7 років тому
MAKE LIFE TAKE THOSE LEMONS BACK!
@texannationalist5887
@texannationalist5887 7 років тому
I don't want your damn lemons, what am I supposed to do with these?
@zacchambers2418
@zacchambers2418 7 років тому
when life gives you lemons, make orange juice and leave life wondering how you did it
@luciferangelica
@luciferangelica 5 років тому
when life gives me lemons i make beef stew, like andy
@KingNachos4
@KingNachos4 Рік тому
@@zacchambers2418 lmao nice one
@mksabourinable
@mksabourinable 10 років тому
I just realized the pun of duracell. It's a durable cell.... probably never noticed because I never thought about batteries' names before today lol
@prothyyy
@prothyyy 10 років тому
that's not a pun, it's just a word play.
@mksabourinable
@mksabourinable 10 років тому
Yea I suppose you're right, my bad :)
@JonesMacGrath
@JonesMacGrath 10 років тому
Schampanes Is a pun not defined as a play on words? lol
@prothyyy
@prothyyy 10 років тому
FeedinAtroll every pun is a word play, but not every world play is a pun, at least that's how i understand it
@Dinocrap1101
@Dinocrap1101 10 років тому
Schampanes if a guy named FeedinAtroll responds to you, you know something is up lol
@unvergebeneid
@unvergebeneid 10 років тому
It's amazing how batteries, like the steam engine and the analog computer, were already discovered two millennia ago ... and lead to nothing. I can't but wonder what the history of humankind would have looked like if just one more genius with the right ideas had come along to see these things.
@unvergebeneid
@unvergebeneid 10 років тому
I would have liked a quick detour to more exotic forms of batteries like liquid metal batteries and Lithium-air batteries.
@Neuralatrophy
@Neuralatrophy 10 років тому
And see where those carbon nanotubes take us !
@666Tomato666
@666Tomato666 10 років тому
mentioning silver based dry cells would also be nice (they were used in the Moon Rover!)
@Neuralatrophy
@Neuralatrophy 10 років тому
Silver would be pricy though.
@eyesofnova
@eyesofnova 10 років тому
Thank you for making me a little bit smarter one video at a time.
@YouMockMe
@YouMockMe 4 роки тому
He was wrong. The Baghdad Battery was a bust...
@AaronGRandall
@AaronGRandall 10 років тому
This is seriously one the best shows on youtube! Thank you for your uploads and awesome knowledge! :D
@InorganicVegan
@InorganicVegan 10 років тому
Buy rechargeables. More expensive, but totally worth not needing to buy more for a LONG time.
@ghuegel
@ghuegel 10 років тому
My favorite crazy fantasy is to travel through time and show great innovators of the past the amazing fruits of their labors. So, bring Volta to the present and show him the Tesla Model S. There would be much to explain, but to show someone like him the wondrous consequences of his efforts would just fill me with joy. Back here in reality, the thought experiment still makes me happy.
@RinoaL
@RinoaL 10 років тому
or ya know, show them the time machine you would have used to get back to then ;p
@laserfloyd
@laserfloyd 10 років тому
There's a Doctor Who episode where he brings Van Gogh to the present day to show him how his works have affected people and are on display in an art museum. The best part is he's mingling about amongst his own works and people don't even recognize him. It's remains one of my favorite episodes. :)
@ghuegel
@ghuegel 10 років тому
laserfloyd I haven't seen that, but I will. It's just wonderful to imagine seeing a great artist enjoying watching people appreciate his art. That is exactly the idea of my fantasy situation. It expands my idea into art appreciation... thanks for that.
@Kalishir
@Kalishir 10 років тому
I would give them a book off all their life work, while they are still 20 years old,.. so they can save time, and discover MORE..... orrrrrr..... collect a metric ton of the most importante technologies and breaktrough and give it to 4000 years old Greeks and Chineses geniuses, so they can speed stuff up. And probably modern weaponery so they can slaugter those who oppose progress.... yeah,... I should perhaps check myself...
@ghuegel
@ghuegel 9 років тому
laserfloyd Hey, just about 8 months later, I finally checked out that scene and that episode because someone thumbed up a comment and I looked for it. Anyway, thanks for that... really wonderful stuff.
@Zerepzerreitug
@Zerepzerreitug 10 років тому
Hank, have you made an episode about graphene? I remember reading that it could also help battery development quite a lot.
@ryanjpedersen
@ryanjpedersen 10 років тому
Whenever SciShow updates, I get super giddy and sit down as if to converse with an old traveling friend who always knows the coolest stuff. I just wanna give Hank (and John!) the biggest bromance hug.
@Deadlychuck84
@Deadlychuck84 10 років тому
I'm loving how after just getting back from my chem class, i'm perfectly keeping up with all of the chemical lingo. It makes me feel so nerdy and badass! I love it.
@atlehman69
@atlehman69 10 років тому
The title deceived me. When it says, The Big idea that 'Turned on the World', I thought this meant that batteries started to have a negative impact on the world, so I was waiting to hear about how they did - all the way to the end of the video. Anyone else as stupid as me?
@meteordude44
@meteordude44 10 років тому
Not really. Sorry.
@atlehman69
@atlehman69 10 років тому
Meteordude44 Fair enough.
@telltellyn
@telltellyn 10 років тому
It hit me about half way through that's not what it meant, but yeah I had the same first thought. :)
@atlehman69
@atlehman69 10 років тому
Lol good to hear I wasn't the only one. If only we were as smart as Meteordude44
@atlehman69
@atlehman69 10 років тому
Wait, no? The second example you gave was intended by SciShow to mean the same thing as your first example.
@elektralyoz
@elektralyoz 10 років тому
Hey Hank, it is very common to mix up the electrode names (i do all the time :)) and i think you did so. Correct me if I'm wrong but it should be like that: cathode is the electron supplier electrode (where reduction occurs) and therefore is given the negative sign and vice versa.
@jus7040
@jus7040 Рік тому
Maybe it was a misunderstanding based on the different definitions for the "technical flow direction" and the "physical flow direction", they are opposing. (Don't know if those are the proper English terms, in German it is "Technische Stromrichtung" and "Physikalische Stromrichtung".)
@coolbugfacts3953
@coolbugfacts3953 7 років тому
I love this channel, it helps me with schoolwork and it's fun to watch
@randomcatdude
@randomcatdude 6 років тому
*_F R E S H M E M E S_*
@silversobe
@silversobe 10 років тому
Recently developed Copper foam batteries are longer lasting, charge faster, and are cheaper to manufacture than lithium-ion.
@Tearith1
@Tearith1 10 років тому
but how many times can you recharge it before the copper degrades and wont hold a charge anymore?
@silversobe
@silversobe 10 років тому
Tearith1 Well, it says it can last up to 10x longer, so even if it degraded faster after each charge, it would still outlive and outperform lithium-ion. Here is the link to the article. cleantechnica.com/2013/10/30/copper-foam-batteries-increased-energy-storage-faster-charge-times-decreased-production-costs/
@Steamrick
@Steamrick 10 років тому
Important fact you forgot to mention: They have a significantly higher energy density. Let's hope they can achieve what they promise and they make it to the market quickly. Mobile devices in particular are really hurting for a better battery technology.
@TheBetterGame
@TheBetterGame 10 років тому
I'm calling bullshit early on this "copper foam". They're just hunting for funding. "We will have a prototype within the year". That statement alone says they've got nothing, but need money to see if something saleable can come out of the research. If they do manage to get a product to market, you can feel free to look me up and give me and "I told ya so", but for now, I'm not holding my breath.
@CarbonFiberSpoon
@CarbonFiberSpoon 5 років тому
Tomorrow is today, I don't see them on the market. :)
@mrchangcooler
@mrchangcooler 8 років тому
I saw the title and got confused. I though "Then did batteries turn on the world? I haven't seen anything anywhere about batteries having negative consequences" And quickly realized it might also mean activate, then felt embarrassed.
@youliahadzhidimova5260
@youliahadzhidimova5260 8 років тому
Mr.chang cooler Wondered the same thing. And didn't realize anything at all. Instead I went to the comments to look for an explanation. And here it is. xD
@sugarfrosted2005
@sugarfrosted2005 8 років тому
+Mr.chang cooler I think it would have been more correct if "on" finished the sentence, since in this case it makes on look like it's part of a prepositional phrase. It's not you it's bad wording. (Not only is ending a sentence with a preposition fine, on in this sentence is a particle, not a preposition.)
@misterneverman6877
@misterneverman6877 8 років тому
Same, lol
@bigbenhebdomadarius6252
@bigbenhebdomadarius6252 8 років тому
+sugarfrosted Ending a sentence with a preposition is a bad habit, up with which we should not put!
@user-bs8hz9ft9b
@user-bs8hz9ft9b 6 років тому
Clearly this is actually about the day the battery operated vibrator was invented.
@danheidel
@danheidel 10 років тому
That Chevy Volt picture reminded me of Hank flipping off H2s at the Detroit auto show.
@montgoss
@montgoss 10 років тому
Is that why he used a pic of the Volt prototype from the first auto show they revealed it at instead of a picture of the *actual* Chevy Volt?
@damnage97
@damnage97 10 років тому
I wish more SciShow episodes were this long. I enjoy them and 4 minutes is not enough... slot of information in a 15-20 minute video would be much better
@jake18721
@jake18721 10 років тому
This Is the only learning Channel that posts regularly, you just got a sub
@EkiAku
@EkiAku 10 років тому
It's weird. For once I knew all the things in this scishow before I watched it.
@scribblespoon
@scribblespoon 10 років тому
***** Ba Dum Tss
@blahahah11
@blahahah11 10 років тому
No one makes batteries like Gaston!
@ZXRulezzz
@ZXRulezzz 10 років тому
And every last inch of these covered in acid to spare :P
@luciabiagini6130
@luciabiagini6130 9 років тому
My teacher showed this video in class and I nearly freaked out. I was just like "OH MY GOD ITS HANK!!!!!!!!!!!!!!!!!!!!!!!!!!!!" Needless to say everyone was looking at me like I had two heads...
@Jason-ri3yf
@Jason-ri3yf 10 років тому
You should do more episodes about important inventions.
@Reckec
@Reckec 8 років тому
You do know your car, once started runs off the alternator and not the battery unless something is wrong with the alternator.?.? The battery is in the system but is really being recharged (except possibly at idle when voltage from a weak alt. may drop below 12ish). That's why jump starting an old battery works. The other vehicles battery and charging system provide the old battery enough extra boost to allow the car to start. But (unless you drained the battery by leaving the lights on or something similar) your car will run just fine but won't start the next time either.
@crypticmcnuggets754
@crypticmcnuggets754 7 років тому
+Reckec And the award for Douchiest comment by some one who cares WAY too much about alternators goes too....
@drenrin2120
@drenrin2120 7 років тому
+Crow T. Robot ...the guy who is absolutely right about how alternators work?
@sqidl1290
@sqidl1290 7 років тому
+THE Crow T. Robot Baron von salt
@deckdriver
@deckdriver 4 роки тому
If you leave the lights on and come back and the car just doesn't start you can turn everything off and wait for 30 minutes and it will allow the battery to recover, then it may start. This trick has saved me on more than one occasion.
@BudLeiser
@BudLeiser 8 років тому
Your shirt is an optical illusion! The white squares turn dark!
@Estabanwatersaz
@Estabanwatersaz 10 років тому
Love you and your brother's style!
@monkeywrench4169
@monkeywrench4169 10 років тому
YOUR SHIRT IS GIVING ME FLASHBACKS!!!!!
@Disthron
@Disthron 10 років тому
I wonder if the elements of batteries can be recycled/melted down and then made into new batteries again.
@RinoaL
@RinoaL 10 років тому
thats what happens to 99.6% of lead acid car batteries. thats why you are charged an extra 7$ when you buy a new one. you gotta bring your old one back to get that 7$ back. thats called a core charge.
@Disthron
@Disthron 10 років тому
Rinoa Super-Genius Cool, good to know.
@grimreap93
@grimreap93 10 років тому
Disthron Just about every auto part has a core charge on them, they are either recycled or re-manufactured.
@coltonhickman1561
@coltonhickman1561 10 років тому
How about a show on the Bermuda Triangle?
@beachbum0014
@beachbum0014 10 років тому
Great episode, Hank!
@NoScopeProducti0ns
@NoScopeProducti0ns 10 років тому
great episode
@picklesnorf101
@picklesnorf101 10 років тому
Your shirt is causing me to hallucinate. I'm seeing blinking white and black spots.
@mattlynch1268
@mattlynch1268 10 років тому
That would be your eyes' assuming what is there since your eyes have a small blind spot. Or you're insane.
@Chocomint_Queen
@Chocomint_Queen 10 років тому
Matthew Lynch Neither. It's actually a fairly well-understood optical illusion called a Hermann grid. en.wikipedia.org/wiki/Grid_illusion
@Zerepzerreitug
@Zerepzerreitug 10 років тому
omg, I just noticed. Now I can't unsee it D:
@Darxide23
@Darxide23 10 років тому
Do an IDTIMWYTIM on the word battery? The common term "battery" used to refer to things like the AA, AAA, C, etc types of batteries aren't actually batteries. They're just individual electrochemical cells where the word "battery" is actually used to describe an array of individual electrochemical cells connected together.
@emmkayel
@emmkayel 10 років тому
I think you've pretty much covered it.
@TheTomBevis
@TheTomBevis 10 років тому
For a follow-up, you could do a video on how the same principles are used to prevent corrosion. Sacrificial anodes and preventive charges, for example.
@missmcinnes
@missmcinnes 10 років тому
Why? Why? I was teaching my kids this 3 weeks ago. Why did I not see this then? Thank you. I love your work.
@yogurtfluff1
@yogurtfluff1 9 років тому
Most lithuim ion batteries are also pressurised which is why Australia Post will only send them overseas via sea mail and not air mail.
@ianwallace4127
@ianwallace4127 9 років тому
no lithium ion batteries allowed in US air mail
@NicholasHatala
@NicholasHatala 9 років тому
Ian Wallace Australia Post...
@nekomasteryoutube3232
@nekomasteryoutube3232 8 років тому
James Smart Actually, if you ever see videos of lithium batteries ruptering or failing, they tend to catch on fire and even EXPLODE! All it'd take is a few batteries on a plane exploding to bring it down
@EMXID
@EMXID 8 років тому
Matt Brine good batteries have an emergency vent that pop and release pressure if they get overpressurised
@nekomasteryoutube3232
@nekomasteryoutube3232 8 років тому
Emx2000 Not all batteries, sometimes things fail catastrophically and blow up, once you expose li-ions or li-pols to air it'll violently combust and exblode
@TheAAMoy
@TheAAMoy 10 років тому
Due one on Capacitors.
@Roxor128
@Roxor128 10 років тому
And after that one, an episode on supercapacitors, which lie in the middle-ground between batteries and capacitors.
@TheAAMoy
@TheAAMoy 10 років тому
Yes, PLEASE! And that new supercapacitor invented by Eesha Khare (sp?).
@taywilliams5153
@taywilliams5153 10 років тому
I always feel so smart after I watch SciShow.
@mike0211
@mike0211 10 років тому
Hank! I'd like to hear about all the new kinds of batteries coming in the future!
@GenesisRC
@GenesisRC 8 років тому
What's the difference between lithium ion and lithium polymer?
@shadowg6224
@shadowg6224 8 років тому
+Genesis RC lithium ion is a lithium atom missing a electron or or additional electron. a lithium polymer is a substance which has many chains of lithium bonded in it.
@cleokatra
@cleokatra 7 років тому
ion even know, man 😂
@Axew13
@Axew13 10 років тому
Ah, I thought it meant that the batteries went evil and tries to take over the world. Or they... *Turned it on...* Um... Nvm
@evanbrown2869
@evanbrown2869 8 років тому
Thanks dude it helped me alot with my science project I got an A+. You just earned a subscribe from me! Keep teaching!
@MrDrSirBull
@MrDrSirBull 10 років тому
Considering my previous comment, you should do a piece on electric vehicles. The Volt has some of the greatest engineering feats of any car this millennium and the Tesla is becoming the Apple of the Auto industry right now with its premier model S.
@FelixNielsen
@FelixNielsen 10 років тому
I had hoped to hear something about some other types of batteries (well, technically not batteries, but I don't know what to call them). For example, a few years back, there was a lot of talk about nano scale capacitors and how such a technology could potentially change the future of energy storage. It seemed very promising, to me at least, but apparently not so, and I'd like to know why. There has also been talk about some liquid metal batteries or something similar. Not as interesting if you ask me, but it would be worth including if you ask me. Personally I think, as do many others I'm sure, that energy storage is one of a select few technologies that could really change the world as we know it, provided that we experience that "quantum leap". Well, I'm done ranting. Have a nice one.
@Prophes0r
@Prophes0r 10 років тому
You could have added another 90 seconds to talk about the more types of batteries. Some are interesting, some are amazing... Molten salt batteries Zink Air batteries "Reserve Batteries" like water cells The aluminum family batteries "Super-Iron" Batteries All are just as interesting than the basic AAs you showed...
@mikeweber5111
@mikeweber5111 10 років тому
WOW!!! GREAT VIDEO!!!
@williamgriffin4184
@williamgriffin4184 10 років тому
Hey Hank, with such an in depth subject it would really be nice to see more animations showing the process you are talking about... it would help the understanding of many people including myself :)
@Aresftfun
@Aresftfun 10 років тому
Baghdad. First batteries. You heard it here.
@Sir_Leelord
@Sir_Leelord 5 років тому
yesss
@camb06
@camb06 10 років тому
Any news on the supercapacitor revolution? when will I be able to charge by phone/laptop/car in a few minutes and have them last hours?
@deeb3272
@deeb3272 6 років тому
scishow is electrifying
@davidbakies5712
@davidbakies5712 10 років тому
Great episode hank wish you had explained battery memory more Which is why some rechargeable batteries especially NiCad batteries will stop recharginf if don't run the battery completely down before recahrging.
@AnonAdept
@AnonAdept 10 років тому
nothing on hydrogen cells? I gues they'll get there own show in the future. hint hint
@henryparker4384
@henryparker4384 10 років тому
Or on Micro/nanocapacitors?
@A-Duck
@A-Duck 10 років тому
***** But they perform similar functions, so I don't see any reason to get bogged down in semantics. Rose by any other name and all that. Batteries are just modes of energy storage, and that's how people see them. This episode in particular made a point in highlighting how the basic technology for batteries hasn't really changed in 2,000 years, so in regards to that conversation nanocapacitors could be considered "the next battery" Batteries will be phased out eventually by newer advances. Graphene Supercapacitors are already poised to be that next leap. I'd say that's fairly relevant.
@ps3master72
@ps3master72 6 років тому
Don't forget supercapacitors!
@frosted1030
@frosted1030 10 років тому
The solution is already here. www.technologyreview.com/view/521651/graphene-supercapacitors-ready-for-electric-vehicle-energy-storage-say-korean-engineers/
@MrGridStrom
@MrGridStrom 10 років тому
Yes these supercapacitors are so efficient that people have been able to make small machines that run for weeks before slowing down, its not perpetual motion but its close enough.
@frosted1030
@frosted1030 10 років тому
MrGridStrom No company making batteries of any kind ever made a claim of perpetual motion. WTF are you talking about? Perpetual motion is a concept, not mathematically viable as the laws of thermal dynamics prevent it.
@MrGridStrom
@MrGridStrom 10 років тому
frosted1030 I am very sorry but you failed to understand my comment.
@Charlesplus5cinema
@Charlesplus5cinema 10 років тому
One of the most wonderful developments in battery technology is the largely immobile recent developments in grid-level storage, I was surprised they didn't come up in this video. Ambri is a company producing them, and these developments could allow for renewable sources to be used for our energy supply even when they otherwise couldn't be harvesting that energy. (Store your sunlight, for use overnight, in this wonderful super-hot battery.)
@Applestoroger
@Applestoroger 10 років тому
You guys should do a show about graphene because that stuff is the future! And also it would be a nice replacement to lithium ion due to its super capacitor capabilities.
@toyotaprius79
@toyotaprius79 10 років тому
7:13 Holy hell, Hank! What on earth is this? Where did you get the sources from, the UKposts comments section, Top Gear? No, they don't just last 5 years. That just doesn't happen. Hybrids as taxi fleets in LA to Dublin clock up many miles, up to 300,000 miles without any battery defect, of which can be found in second hand markets. Pretty much every manufacturer warranties the batteries for 8 years, some more. That's based off laboratory testing of cells where a small individual cell is recharged and discharged rapidly in various conditions to simulate a full life of a car, +8 years. Constantly rapidly recharging and discharging by recreating 8 years of use in less than a month or 2 is obviously not too good for a single Li-ion cell, making its 8 year warranty rather conservative. Surely, mass produced electric cars have only been on the road since 2010, there's really no way to tell what would actually happen in the long run other than to wait, but hybrids have and can. Even when the battery "quits" suddenly as many fear and point for Hybrids and EVs, there are only a few instances, but that doesn't mean a big useless battery is guaranteed! There are a few videos to show why and how to fix smaller hybrid batteries at least. It's usually due to a single cell or module among many in a battery that became weak, producing less volts than the rest. For an automotive battery to work, each module must produce similar amount of volts to work (In a Prius, it's 7.6 volts, but a "failed" battery may have one or two modules with 6 volts). A single module for a hybrid battery can cost $40 on ebay or $250 for the whole battery from the scrapyard. For an electric car, it's unknown at this stage because they're new, but it won't be an outright replacement of $10,000! That is nothing more than rumours from worries! Even so, 8 years down the line batteries will be cheaper. At this pioneering rate, li-ion's price decreases by 8% per year. I was rather surprised at this. Not only did I knew and predicted what Hank was going to say in this video, weird right? But gobsmacked when hearing these rumours usually used against electric cars at 07:13. They have been around since 2004, that's the first time I heard of them! It's just because they're new. It's easy to pick on what's new. I'm sure John might disagree. That was upsetting though.
@EkiAku
@EkiAku 10 років тому
Hank's really into eco friendly things so I doubt he was purposely trying to pick on hybrid cars. He just got bad info. But I'm glad you have corrected him!
@mjlacey
@mjlacey 10 років тому
You cannot extrapolate from hybrids to full EVs. The current Prius had a 1.4 kWh battery which has a range of a few miles. The operation of such a battery (frequent charging and discharging within a narrow depth of discharge range) means the battery can do far more cycles than a battery pack in a full EV, where you expect to be able to use the full range in one go. Hybrids can also just bypass the battery altogether under high power conditions if needs be (e.g. accelerating, going up a hill). It is not unreasonable to suggest therefore that a battery pack for a full EV may not hold an acceptable charge after 5 years, especially for EVs with smaller battery packs. As for the cost - the difference between the Tesla Model S base models with 60 or 85 kWh battery packs is about $10,000. The Nissan Leaf, as an example has a 24 kWh battery pack, so $10,000 would seem reasonable. That also works out as about $415/kWh which is maybe even on the cheap side for today.
@danielhale1
@danielhale1 10 років тому
Ah, the Baghdad Battery, the pseudo-scientist's Viagra. The conspiracy theorist's dirty movie. Whatever turns them on, I suppose, but the archaeologist explanation of gold plating seems more plausible than space aliens and multi-millennium cover-ups.
@rockingcockin
@rockingcockin 10 років тому
your mind in my body......that would make science cool again. would be a badass show!
@hsbswjwsb
@hsbswjwsb 6 років тому
"Daniel cell" what an original and good name
@voveve
@voveve 10 років тому
We Italians were everywhere in science...now...a bit less...
@TopherT1
@TopherT1 10 років тому
Not true, Italians made the Arduino!
@techcommenter
@techcommenter 10 років тому
now you put your scientists in prison!
@AngeloGi
@AngeloGi 10 років тому
Greeks, too...
@TopherT1
@TopherT1 10 років тому
Yeah, but you have Giorgio Tsoukalos!
@AngeloGi
@AngeloGi 10 років тому
I guess! I doubt he has any connection with Greece besides heritage though!
@Dusty--
@Dusty-- 10 років тому
I thought this was going to be a video about how batteries are useful but bad for the environment lol
@D0wnshift
@D0wnshift 10 років тому
This was a very informative video. One question I was hoping to hear was why older rechargeable batteries had a memory and had to be completely drained before recharging?
@bgvmysore
@bgvmysore 8 років тому
could you do a video on super capacitors
@MrGridStrom
@MrGridStrom 10 років тому
The battery 'quality rating system' goes some thing like this. Energizer Duracell Eveready AllreadyDead Lemon
@MrGridStrom
@MrGridStrom 10 років тому
***** So your saying my rating system is wrong?
@dcaonoek
@dcaonoek 10 років тому
MrGridStrom Yeah Duracell Is the best.... Nearly every audio engineer for live events uses them.
@MrGridStrom
@MrGridStrom 10 років тому
Well your all entailed to your 'personal opinions' but I prefer to keep it scientific. www.wired.com/wiredscience/2012/01/are-expensive-batteries-worth-the-extra-cost/
@dcaonoek
@dcaonoek 10 років тому
Why fatal? I am confused. Why you would pick apart a simple youtube video comment, then use a massive overstatment that is calling the use of a logical fallacy as "the fatal error". One can use a logical fallacy and still be correct. Please don't flatter yourself as to my support of your claims. I would have posted as much even if you had not.
@MrGridStrom
@MrGridStrom 10 років тому
Why so serious? I take it no body see the comical value of buying battery's that are so bad there All ready dead? you guys need to laugh some time its good for you.
@Rakadis
@Rakadis 10 років тому
Why is battery technology so shitty compared to the devices they power?
@JetfireQuasar
@JetfireQuasar 10 років тому
Battery tech has stalled since the Li-ion discovery... apart from refining the Li-ion tech, currently there is no known better material that is stable enough.
@Rakadis
@Rakadis 10 років тому
Jetfire There are experiments with Carbon-Nanotubes that I know of, but other then that you are correct.
@Angie2343
@Angie2343 6 років тому
SciShow should do an episode on humanoid robots!
@mdiddy6672
@mdiddy6672 10 років тому
A similar video on capacitors would be pretty cool to see!
@CramBoom
@CramBoom 10 років тому
I don't need batteries. Science powers my world :).
@marcussamuel6144
@marcussamuel6144 10 років тому
Technically it does, without science we would not have all the energy sources we do today, such as oil, nuclear, solar, etc etc.
@alessandrobaccini4080
@alessandrobaccini4080 9 років тому
Anode is positive and cathode negative, you mixed 'em up
@1ohtaf1
@1ohtaf1 9 років тому
Alessandro Baccini No, it changes depending if you are referring to conventional current or electron flow.
@norcalcoastanglerfishing9661
@norcalcoastanglerfishing9661 8 років тому
Alessandro Baccini the definition applies to things like a rechargeable battery, where you cannot identify the anode and cathode until you see how the device is being operated
@Invit123
@Invit123 8 років тому
Ya I hate conventional style current
@scelestus6930
@scelestus6930 6 років тому
No, they got it right. Oxidation occurs on the anode. In a discharging battery or galvanic cell, the anode is located on the negative terminal. In a recharging battery or an electrolytic cell, the anode is located on the positive terminal, Because the process is reversed.
@River-cm9tz
@River-cm9tz 10 років тому
I loved this one it was so interesting
@Komati
@Komati 10 років тому
Good video, I think you should talk about the future of batteries though. I can recall reading at least one article about some "amazing" battery breakthroughs this year.
@SUTTy718
@SUTTy718 10 років тому
Great video, I'd like to see a video about various protein's and how life requires different protein types.
@mekugiana
@mekugiana 10 років тому
I'd to see an episode discussing the progress of super capacitor research
@Piano_Addict
@Piano_Addict 10 років тому
We're all dying to know more about graphene supercapacitors!!!
@chuckcrunch1
@chuckcrunch1 10 років тому
yep .
@SpeedyDrawMcGraw
@SpeedyDrawMcGraw 10 років тому
I HAVEN'T FINISHED THE VIDEO BUT I'M COMMENTING!
@nicolaiveliki1409
@nicolaiveliki1409 6 років тому
I've done some research on rechargable batteries for a solar project not too long ago, and the way I see it, NiFe batteries are best suited for this purpose. They do lose some rechargeability with every cycle (some .01%), and they have quite a spontaneous discharge rate (40%/month), but they will work for up to a hundred years and they are pretty much immune to overcharge damage
@celinak5062
@celinak5062 4 роки тому
+
@garethdean6382
@garethdean6382 10 років тому
I always said you couldn't trust batteries, once they gain your trust they turn on you.
@zeadeltanova12
@zeadeltanova12 10 років тому
***** Gravity shouldn't be trusted either... I tried a trust fall, and it just let me fall...
@garethdean6382
@garethdean6382 10 років тому
Tyler Hughes Really? The Earth's caught me every time so far. A bit rough, but I expect no less from such a big gal.
@MisterBik
@MisterBik 10 років тому
Would have been interested in the new types of batteries coming out, ie the sulphur in silicone one, and the nanotube ones....
@Khether0001
@Khether0001 10 років тому
I'm having a test with this subject TODAY =)
@aegis027
@aegis027 10 років тому
Can you do a quick video about Graphene super capacitors? I saw a brief video about it on another channel, and I would love to see you guys take a look at it.
@slipknotfatman
@slipknotfatman 10 років тому
really think a great idea would be to do an episode on Itching !!
@Oddman1980
@Oddman1980 7 років тому
There are of course two different kinds of Lead-Acid batteries. The kind that start your car will run down quickly and be damaged if you were to discharge them all the way - but they put out a huge amount of current. The other kind, or "Deep Cycle" batteries, can be charged and discharged without harm, until they reach the end of their useful life. There are deep-cycle lead acid batteries in use today that weigh upwards of 3,300 pounds (1,400 kilograms), mostly the 36v or 48v behemoths used in electric forklift trucks.
@MrElmattias
@MrElmattias 10 років тому
hank, i've been watching your channel here from the start, and this subject here is particularly intriguing to me as an engineer myself....with that said, what are your thoughts on the newly discovered/invented carbon power cells that recharge in seconds and can hold much, much more power in a much, much smaller space? i know the technology is very new and i've only read one article on it...but figured it would be something great for you to touch on to add to this particular topic.
@AshrakAhmed
@AshrakAhmed 10 років тому
That was a random and unusual "Eveready" battery and torch advertisement banner @ 3:50
@colinthompson5303
@colinthompson5303 7 років тому
Now you mentioned that you would talk about the future of batteries but I did see you touch on that. I would be interested in what they are experimenting with now and where the battery industry will head next. It seems like it will have to be something completely new
@rrnbob
@rrnbob 10 років тому
I'd love to see a video about graphene supercapacitors as well!
@Diceyed
@Diceyed 10 років тому
now we need Supercapacitors episode
@nictheman144
@nictheman144 10 років тому
Can you do a vid on Fuel Cells? (If you haven't already..) and maybe talk about the new-ish water-splitting solar cells? Thanks Hank!
@achukalathil3350
@achukalathil3350 10 років тому
Nice video
@innovationofgaming4113
@innovationofgaming4113 7 років тому
Wow Bangla Written In The Battery Logo Man That's Interesting First Time I Saw My Country Something In That Old And History Change Thing
@bitasy1
@bitasy1 10 років тому
Where was this video when I took my electrochemistry test 2 weeks ago in AP Chem... anyways great video :D
@RinoaL
@RinoaL 10 років тому
it was inside of hank's brain or perhaps inside the SD card of his camera. :P
@katesutton3845
@katesutton3845 6 років тому
Hanks shirt is an optical illusion, you can see black dots where the white stripes meet in your periphery but they disappear when you look directly at them!
@timothycousineau5335
@timothycousineau5335 5 років тому
I have a 30,000 mAh powerbank, its lithium, I love it, I can charge 3 devices at the same time and it has a tiny screen with a percentage of battery on it, wasn't very expensive either, love it.
@Chifos0
@Chifos0 10 років тому
im surprised you didn't mention super capacitors, not a battery but it has most the qualities we would want (fast recharge and discharge rates and long life cycles) to be the replacement for the battery. the new materials that are being developed work on the next big hurtle which is their energy storage density.
@Kinan.Eldari
@Kinan.Eldari 10 років тому
Honestly, guys 'n girls ? My perk is getting to watch your show : )
@EternityGray
@EternityGray 10 років тому
Hank's shirt has the 'ghost at the crossroads' illusion.
@coloraturaElise
@coloraturaElise 5 років тому
Hey, Hank, can you add a bit to this video (or make a new one) that talks about the Statue of Liberty turning into a battery back in the 80s?
@Merennulli
@Merennulli Рік тому
It's generally agreed by archaeologists that the "Baghdad battery" was not a battery. The most glaring problem is that it had no way to make a circuit, the copper assumed to be the "cathode" was fully inside the container with no way of being reached to complete the circuit. There are also no artifacts from the period that were electroplated (plenty of fire-gilded, but that doesn't involve electric current) and the current would be to weak if it were used with contemporary substances proposed as the "electrolyte". Aside from the alleged "anode" and "cathode", the jar otherwise matched others used to store scrolls and a decaying scroll may be responsible for the weakly acidic residue found inside.
@malickibrahim6571
@malickibrahim6571 9 років тому
this chanel is good
Why is this number everywhere?
23:51
Veritasium
Переглядів 1,7 млн
Around The World In 7 Diseases
14:06
SciShow
Переглядів 73 тис.
Лама Мама А4 и Кунг-фу Панда топчик❤️
00:22
Дим Димыч
Переглядів 2,5 млн
The Big Misconception About Electricity
14:48
Veritasium
Переглядів 21 млн
4 Real Inventions Inspired by Science Fiction
10:27
SciShow
Переглядів 1,3 млн
This Is Why Companies Are Hiding The Truth About Batteries
18:21
Thoughty2
Переглядів 1,6 млн
Where Does Grounded Electricity Actually Go?
19:36
Practical Engineering
Переглядів 4,5 млн
The Smelly, Oozy, Sometimes Explode-y Science of Garbage
8:40
SciShow
Переглядів 1,2 млн
I Had Chemo and My Hair Came Back Curly!
9:21
SciShow
Переглядів 908 тис.
How do Lithium-ion Batteries Work?
9:30
Branch Education
Переглядів 1,2 млн
The How, Why, and How Much of Oil
9:47
SciShow
Переглядів 1 млн
Лама Мама А4 и Кунг-фу Панда топчик❤️
00:22
Дим Димыч
Переглядів 2,5 млн