Apple Joins Wireless Power Consortium Amid Rumors of iPhone With Wireless Charging (theverge.com)

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Apple Joins Wireless Power Consortium Amid Rumors of iPhone With Wireless Charging (theverge.com)

Posted by msmash on Monday February 13, 2017 @07:20AM from the shape-of-things-to-come dept.

If you've been holding out hope for wireless charging to come to the iPhone, chew on this: Apple joined the Wireless Power Consortium. From a report: Last week, a leaked note suggested that Apple is working on adding wireless charging to three phones scheduled for release in 2017. The technology may be similar to what the company has already implemented with the Apple Watch, though other reports have hinted at charging solutions that can add power to devices from a distance. The Wireless Power Consortium is the group behind Qi, a wireless charging standard that uses inductive power transfers to charge without cords.

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Wastefulness by Anonymous Coward · 2017-02-13 07:30 · Score: 1

So-called 'wireless charging' just wastes energy as heat and as magnetic fields that are dissipated -- all for the sake of 'convenience'. Why isn't a standard USB socket good enough for everyone?
1. Re:Wastefulness by Higaran · 2017-02-13 07:34 · Score: 3, Interesting
  
  I have used wireless chargers in the past, and they are 100 times better than using a usb cable. I don't mind using a cable, but its just soo much easier, to just be able to put your phone down on the charger and not have to deal with it. Now I have a phone with USB-C which isn't as bad, since it don't matter what side you stick it in the connector, but it's still more hassle than it should be.
2. Re:Wastefulness by DamonHD · 2017-02-13 07:39 · Score: 2
  
  ...and I refer you to your prize for tonight!
  https://ask.slashdot.org/story...
  Why bother to log in to belittle someone? You're not adding anything, so maybe your soul is the one worth inspecting...
  Damon
  
  --
  http://m.earth.org.uk/
3. Re:Wastefulness by Bugler412 · 2017-02-13 07:44 · Score: 2
  
  apparently you have never used a wireless charging dock in the car, a work vehicle that I have to enter and exit from a LOT. Don't discount all use cases because you aren't one of them.
4. Re:Wastefulness by BradleyUffner · 2017-02-13 07:45 · Score: 2
  
  Those standard USB ports tend to be a little weak point in the construction of the phone. They often fail completely, or damage the port / phone if someone does something like trip over the USB cable. The become loose over the life of the phone as the cable is plugged and unplugged, sometimes making it hard to keep the cable plugged in.
  Wireless charging is a boon to anyone who has ever experienced any of these problems.
5. Re:Wastefulness by Anonymous Coward · 2017-02-13 07:45 · Score: 0
  
  So-called 'wireless charging' just wastes energy as heat and as magnetic fields that are dissipated -- all for the sake of 'convenience'. Why isn't a standard USB socket good enough for everyone?
  Why do you even read slashdot? Technology only exists because of convenience.
6. Re:Wastefulness by lgw · 2017-02-13 07:46 · Score: 3, Interesting
  
  Why isn't a standard USB socket good enough for everyone?
  It's a port. Apple removes ports, because courage! Wireless charging (in addition to being really convenient and such) is a needed step towards Apple's goal of a phone with no ports at all. Courage!
  
  --
  Socialism: a lie told by totalitarians and believed by fools.
7. Re: Wastefulness by Anonymous Coward · 2017-02-13 07:46 · Score: 0
  
  I'm surprised they haven't brought back the concept of the "cradle", a little stand for the smartphone with a docking port.
  Knowing Apple, I'm surprised they haven't launched their own energy satellite beaming down free wifitricity to registered customers. Or maybe they can build a phone that can recharge on electrosmog.
8. Re:Wastefulness by Anonymous Coward · 2017-02-13 07:50 · Score: 1
  
  Just think of how much more shitposting you could do if you didn't have to waste 3 hours every year fiddling with USB cords.
9. Re:Wastefulness by burtosis · 2017-02-13 07:51 · Score: 2
  
  So-called 'wireless charging' just wastes energy as heat and as magnetic fields that are dissipated -- all for the sake of 'convenience'. Why isn't a standard USB socket good enough for everyone?
  You realize mobile phone batteries are sub 20 watt hours right? As in even with outrageous electricity prices charging costs less than a cent? Further given people on average partially change thier phone once per day means a 15% drop in efficiency is truly meaningless. Replacing a single light bulb with an led one could offset 350 people using a wireless charger vs a wired one.
10. Re:Wastefulness by DamonHD · 2017-02-13 08:24 · Score: 1
  
  Did you actually read the poster's words before jumping in? Nowhere does Higaran even use the word "difficult" or moan at all; it's all mildly positive and comparative in fact.
  I do think it is unkind to make the effort to post only to tell someone that they are a fool for something ... they didn't even say.
  Go and read that Slashdot story I linked about aggressive/trollish posting. Of course you may be a deliberate troll and I'm feeding you, or you may be a sociopath and actually unable to recognise why your behaviour is unnecessary and unkind.
  Or you may be a normal human being and coming across badly on this one occasion for some random reason.
  Damon
  
  --
  http://m.earth.org.uk/
11. Re:Wastefulness by Anonymous Coward · 2017-02-13 08:36 · Score: 0
  
  wohoah! Buttslammed!!
12. Re:Wastefulness by DontBeAMoran · 2017-02-13 08:41 · Score: 1
  
  So because it's 15% of not much, it doesn't matter? How millions of smartphones are in use today? How many megawatts* of electricity is going to be wasted in the name of convenience? And in countries like the USA, that means a lot of pollution in the name of convenience.
  * this is Slashdot. I expect someone will have the numbers and math to tell us how much energy would be wasted and how much pollution created.
  
  --
  #DeleteFacebook
13. Re:Wastefulness by Higaran · 2017-02-13 08:51 · Score: 1
  
  I never said it was difficult to put in a charging cable, I'm saying it's a pain in the ass to do it again after you get used to not having to do it.
14. Re:Wastefulness by Anonymous Coward · 2017-02-13 09:22 · Score: 0
  
  Gee, I don't personally know anyone who has ripped the USB jack out of any device they own, I only *hear* about people doing such klutzy things like that. Maybe you should just be a little more careful with your things? Not treat them so rough?
15. Re: Wastefulness by Anonymous Coward · 2017-02-13 09:23 · Score: 0
  
  I think you mean electrosmug.
16. Re:Wastefulness by Anonymous Coward · 2017-02-13 09:24 · Score: 0
  
  Well, we'll just use this cheap chemical to deter insects, because it's good enough and it's convenient for us to use, we don't care if it kills off all the bees and ruins the planet, LOL
  Yeah convenience is the only thing that matters. STFU idiot.
17. Re:Wastefulness by pr0fessor · 2017-02-13 09:29 · Score: 1
  
  I want a new bug zapper/tesla coil/wireless charger...
18. Re:Wastefulness by AmiMoJo · 2017-02-13 10:05 · Score: 2
  
  It's probably a net gain when you consider how many phones and tablets won't be thrown away due to broken charge ports.
  
  --
  const int one = 65536; (Silvermoon, Texture.cs)
  SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
19. Re:Wastefulness by dead_user · 2017-02-13 11:05 · Score: 1
  
  Ignore the AC who replied to you. Every iphone I've owned has had to have the charging port replaced before the phone was retired due to charging issues and I never tripped over the cord. Teeny tiny mechanical ports just suck. Add in the pocket lint, peppermint fragments, dirt, and all the other random shit that is in your pocket getting pushed into the port and it's a wonder they last as long as they do!
  
  Those who have never used wireless charging just won't get it until they try it for a while. I just need to find a good, inexpensive Qi car charging mount and I'm all set.
20. Re:Wastefulness by Anonymous Coward · 2017-02-13 14:04 · Score: 0
  
  So-called 'wireless charging' just wastes energy as heat and as magnetic fields that are dissipated -- all for the sake of 'convenience'.
  Good point, I'm agreeing with you up until...
  
  Why isn't a standard USB socket good enough for everyone?
  Because it is rubbish. Flimsy, unreliable rubbish. An actual power socket - read any socket that doesn't break if you look at it wrong - would be nice, but not usb.
21. Re:Wastefulness by apoc.famine · 2017-02-14 05:19 · Score: 1
  
  That's what caused me to give up my last one. Pushing 3 years and it was fine for a bit more, because I only used it lightly. But even a replaceable battery couldn't really save it once I could no longer charge it. Not really worth using an old phone to constantly charge a couple of batteries and then swap them once or twice every day. I did that for 2 days before I just gave up and bought a new phone. With wireless charging.
  
  --
  Velociraptor = Distiraptor / Timeraptor
22. Re: Wastefulness by Anonymous Coward · 2017-02-14 19:21 · Score: 0
  
  You sir are a great man. I salute you!
23. Re:Wastefulness by kuzb · 2017-02-14 19:28 · Score: 1
  
  You don't necessarily rip the jack out, but constant plugging and unplugging may eventually cause stress fractures in the solder. It hasn't happened to me personally on any of my USB devices, but it did happen to a friend of mine with his Nexus 7. I also remember it being a problem with an old Casio keyboard I had when I was a kid, although that was an AC power jack.
  
  Even discounting that, not having to deal with yet another loose cable is nice.
  
  --
  BeauHD. Worst editor since kdawson.
Choke on it by AndyKron · 2017-02-13 07:37 · Score: 1

I love my Samsung wireless charger. Apple can choke on its core
Wireless charging just got invented. by Anonymous Coward · 2017-02-13 07:45 · Score: 0

Sweet this sounds so awesome. Can't wait for everyone else to copy. :)
1. Re:Wireless charging just got invented. by DickBreath · 2017-02-13 10:18 · Score: 1
  
  The unique innovation is to do $X on an iPhone !!!
  
  So it not only just got invented, but just got patented. Just like things already patented were re-patented by adding " . . . on an iPhone".
  
  Or, " . . . on a computer", depending on which patent troll.
  
  I don't want wireless charging, I want wireless exploding batteries. How about Apple joining a consortium for that? Now if only there were a partner company.
  
  --
  
  I'll see your senator, and I'll raise you two judges.
Wireless charging now? by burtosis · 2017-02-13 07:46 · Score: 1

Hmm, several years behind the opposition with sales of those products doing very well. Yep, now is the time for the courage to bring a truly futuristic technology to the adoring masses. With alternative facts all the rage, id even heap on Samsung shamelessly copying Apple to boot.
1. Re:Wireless charging now? by Anonymous Coward · 2017-02-13 09:18 · Score: 0
  
  What will be really funny is when Apple has some new wireless charging scheme that outperforms what's available today, and stupid Internet trolls will act like it's the same shitty inductive charging that people are using today, because they both vaguely do the same thing.
  Because that's never happened with an Apple product before.
2. Re: Wireless charging now? by Anonymous Coward · 2017-02-13 09:23 · Score: 0
  
  So you are asserting new laws of physics will be discovered and used by Apple?
3. Re:Wireless charging now? by Mr_Silver · 2017-02-13 09:43 · Score: 1
  
  Hmm, several years behind the opposition with sales of those products doing very well.
  I don't have a problem with Apple being late to a game, provided that what they do bring is measurably better/useful/practical in some way.
  Apple Pay did that, whereas Maps and Music did not. Where wireless charging sits on this spectrum remains to be seen.
  
  --
  Avantslash - View Slashdot cleanly on your mobile phone.
4. Re: Wireless charging now? by burtosis · 2017-02-13 10:21 · Score: 2
  
  So you are asserting new laws of physics will be discovered and used by Apple?
  Remind us again of what fell on Newton's head? Apple invented physics
5. Re: Wireless charging now? by Anonymous Coward · 2017-02-13 23:36 · Score: 0
  
  Apple pay is innovation? Now I need $1000 device to pay for $15 bill instead of free credit card that is 1/100 of the weight and 1/4 of the size and merchant has to give Apple 30% for the privilege. Who do you think pays for that 30% in the end? Fuck Apple and all their innovation in the last 15 years. And same to Google and Amazon and Microsoft for trying to achieve the same level of duchebagerry.
6. Re: Wireless charging now? by Mr_Silver · 2017-02-14 02:24 · Score: 1
  
  Apple pay is innovation? Now I need $1000 device to pay for $15 bill instead of free credit card that is 1/100 of the weight and 1/4 of the size and merchant has to give Apple 30% for the privilege. Who do you think pays for that 30% in the end?
  The merchant isn't charged anything beyond their usual card processing fees. Apple's fee comes from the card issuer which is a percentage of their interchange fee. The 30% you speak of is for apps in the App Store and isn't remotely related to the fees around Apple Pay.
  You probably should have prefixed your rant with an admission that you don't have the remotest clue how Apple Pay works.
  
  --
  Avantslash - View Slashdot cleanly on your mobile phone.
7. Re: Wireless charging now? by kuzb · 2017-02-14 19:32 · Score: 1
  
  You can't invent a set of natural laws, you can only discover them. Gravity is going to exist regardless of whether or not you know about it.
  
  --
  BeauHD. Worst editor since kdawson.
Think of it this way - a cable costs what, $10? by Anonymous Coward · 2017-02-13 07:49 · Score: 0

A wireless charging base station is going to run anywhere from $80-$200 I bet. Yes, convenience. Yes, $.
1. Re:Think of it this way - a cable costs what, $10? by crow · 2017-02-13 07:58 · Score: 1
  
  A cable often costs $0.76 on eBay if you get a cheap on shipped from China. (They're often priced at $0.99 Canadian with shipping.) You can find charging pads for $5, but most are around $12.
  Apple moving into the market will only drive down the price of compatible chargers. Sure, Apple might charge $50 or more for their charging pad, but there's no reason to buy theirs.
2. Re:Think of it this way - a cable costs what, $10? by kuzb · 2017-02-14 19:35 · Score: 1
  
  Assuming it follows the QI standard (and lets face it, this is Apple we're talking about so it probably won't) a charging station can be had for as little as $7 US.
  
  --
  BeauHD. Worst editor since kdawson.
One more step ... by PPH · 2017-02-13 07:57 · Score: 1

... on Apple's road to an iDevice with no ports.

--
Have gnu, will travel.
1. Re:One more step ... by kuzb · 2017-02-13 08:11 · Score: 1
  
  Apple: fixing what isn't broken because fuck. We're out of ideas.
  
  --
  BeauHD. Worst editor since kdawson.
2. Re:One more step ... by Anonymous Coward · 2017-02-13 08:13 · Score: 0
  
  Why would you need ports? All they want you to do is consume media with their devices. They don't give a shit about people who use their devices for real work anymore.
3. Re:One more step ... by known_coward_69 · 2017-02-13 08:27 · Score: 1
  
  isn't android far ahead with this? i have a galaxy s6 that can do wireless than i never use
4. Re:One more step ... by DontBeAMoran · 2017-02-13 08:43 · Score: 1
  
  Tim Cook seems to think an iPad can replace a computer for real work. I guess that's easy when all you need is Pages and Numbers.
  So, which is the perfect Linux distro for Mac switchers?
  
  --
  #DeleteFacebook
5. Re:One more step ... by Anonymous Coward · 2017-02-13 09:36 · Score: 0
  
  Arch
6. Re: One more step ... by Anonymous Coward · 2017-02-13 11:34 · Score: 0
  
  The iPhone's screen itself is a huge, fingerprint-grease magnet, shatterable light emitting port. If Apple had real courage like they say, they'd eliminate that first. :p
7. Re:One more step ... by Anonymous Coward · 2017-02-13 13:06 · Score: 0
  
  My Droid Maxx is 3 years old at this point and it has wireless charging.
Fear not! by kuzb · 2017-02-13 08:10 · Score: 3, Insightful

Apple will introduce some proprietary protocol between the apple device and the extremely expensive charging pad to ensure that you can't use just any cost effective QI charger.

--
BeauHD. Worst editor since kdawson.
1. Re:Fear not! by Anonymous Coward · 2017-02-13 08:44 · Score: 0
  
  And it will be magical!
2. Re:Fear not! by kuzb · 2017-02-13 08:55 · Score: 1
  
  And revolutionary!
  
  --
  BeauHD. Worst editor since kdawson.
3. Re:Fear not! by Solandri · 2017-02-13 09:35 · Score: 2
  
  It can get a lot worse. Rambus joined JEDEC - a consortium of memory manufacturers set up so everyone could cooperate in creating a high-performance low-cost standard. They took ideas that were being discussed by other memory manufacturers for DDR memory and secretly patented them, then sued the other memory manufacturers for patent violation. The JEDEC rules expressly prohibited patenting technologies being discussed by consortium members, but crucially did not specify penalties for someone breaking those rules. Consequently the only recourse JEDEC had was kick Rambus out. Their patents based on stealing other people's ideas were still legally valid. This is why everyone hates Rambus.
4. Re:Fear not! by kuzb · 2017-02-13 12:43 · Score: 1
  
  The only way it gets worse is if you're an Apple customer. There's no way for Apple to patent wireless charging. The smart consumers are jumping ship on them left and right making Apple's proprietary choices a non-issue for many.
  
  --
  BeauHD. Worst editor since kdawson.
Ya huh by Anonymous Coward · 2017-02-13 08:29 · Score: 1

So let me get this straight. They're joining so that they can influence the standard, lift a bunch of good ideas from others in the consortium and then turn around and create their own incompatible standard. Sounds great.
1. Re:Ya huh by DontBeAMoran · 2017-02-13 08:44 · Score: 1
  
  Sounds like Android to me. Join Apple's board, steal iPhone idea, release own smartphone to compete with Apple.
  
  --
  #DeleteFacebook
2. Re:Ya huh by Anonymous Coward · 2017-02-13 08:48 · Score: 0
  
  That sounds sooo apple.
3. Re:Ya huh by thesupraman · 2017-02-13 09:09 · Score: 1
  
  They must have had very smart spies.
  Think of all the Iphone features they 'stole' before Apple even thought of them themselves!
  After all, we know there were never ANY smartphones before the Iphone, no touchscreens,
  no GUIs, hell, I'm pretty sure we didnt even have colour back then! CERTAINLY no rectanges
  without rounded corners, god forbid!
  Yes, you must be right, android (whomever that is supposed to be..) stole it all from the great Apple!
  Apple Ueber Alles!
4. Re:Ya huh by DontBeAMoran · 2017-02-13 10:39 · Score: 1
  
  You seem to have a very selective memory about the iPhone vs Android story. Forget the GUI, forget the industrial design. Go back at the very beginning.
  Android exists only because Eric Schmidt was on Apple's board of directors and knew about the iPhone before it launched. He then quit Apple's board and Android was revealed shortly after that.
  
  --
  #DeleteFacebook
5. Re:Ya huh by Anonymous Coward · 2017-02-14 19:39 · Score: 0
  
  ...and thank fucking christ. I'd puke if my only choice for a smartphone was an underpowered and overpriced piece of crapple shit. Google can't eat the rest of Apple's lunch fast enough.
Square of the distance... by bobbied · 2017-02-13 08:43 · Score: 3, Insightful

Everybody needs to remember one critical fact here... Once you get a little distance away from the transmitter, the energy available will fall off according to a set formula based on simple geometry. That formula has the distance squared on the bottom of the fraction.
Why do I point this out? Because everybody needs to understand that "wireless" power distribution may be possible over short distances for small amounts of power, it quickly becomes impractical as the distance between the transmitter and receiver goes up because the available energy captured falls off in some ratio of the inverse of the distance squared. To put it another way, You will have to stay close to that charger, REALLY close or it's going to have to put out some seriously dangerous levels of power which will fry you if you get too close.
So, if wireless charging means you drop your phone on a pad or into some holder that then allows the coupling of a changing magnetic field and some coil of wire on the phone, you are getting what you expected. But if you think you can sit on your couch with the "charger" on some shelf across the room, or have the phone in your pocket changing while you drive down the road because the charger is built into the car, that's not going to happen.

--
"File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
1. Re:Square of the distance... by Hadlock · 2017-02-13 09:01 · Score: 2
  
  I bought three charging pads for my Nexus 5, one bedside, one at my home office PC, and one at my office PC. It basically stayed charged 100% of the time unless I was on a road trip or some such.
  
  Doesn't matter where the pad is, you just need the charging pads where you use the phone the most. A dedicated charging pad in the car, one by your bed and one at the office cover 90% of use cases for probably 80% of the population. If apple got behind wireless charging, you would probably see charging pads appear in BMW and Mercedes first, followed by Lexus, Acura and then Honda/Toyota and eventually american manufacturers. We just need a standard that we're going to stick with. I'm ok with a Qi/USB Type-C world.
  
  --
  moox. for a new generation.
2. Re:Square of the distance... by thegarbz · 2017-02-13 09:49 · Score: 3, Informative
  
  You do know that this technology has been around for a few good years now and most people not only know what you said, but many actually have these things at home right?
  This isn't some pie in the sky physics lab experiment that Apple are courageously innovating first to market. ...
  Actually last to market may be a more correct way of putting it.
3. Re:Square of the distance... by AmiMoJo · 2017-02-13 10:02 · Score: 1
  
  That is not entirely accurate. The loss over distance depends on how focused the beam is. It's why torches (flashlights) and car headlights have mirrors behind them, to focus as much of the beam forwards as possible. It's possible to do the same with any kind of EM field, not just visible wavelengths.
  If you are radiating in all directions the receiver needs to be very close to capture a good amount of the energy. If you focus, it can be further away.
  Wireless chargers for cars have been available for years now. They supply a few kilowatts over a short but still significant distance, so you can just drive into your garage with the charger in the floor and the usual car ground clearance less a few centimetres for the coil.
  
  --
  const int one = 65536; (Silvermoon, Texture.cs)
  SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
4. Re:Square of the distance... by bobbied · 2017-02-13 13:54 · Score: 1
  
  If you are claiming to be able to focus a beam on a phone as it moves around in space from some device tens of feet away, I'm going to say just one thing. VERY complex and expensive... Which is tantamount to saying impractical. Plus, if there is much spreading of that beam (and there always is spreading) you loose power density due to distance squared being on the bottom of your fraction again. It helps, but it doesn't fix the problem and it buys you the problem of having to focus the beam at some moving target.
  On your car example. A few centimeters is NOT significant if the coils of wire are significantly larger than the distance.... The induction between the car that can carry a coil that's say 4+ feet long per side and matching coil in the floor (magnetically coupled) over a few centimeters or even a foot, is not what I'm talking about. Your phone is can have a coil that is maybe 5 inches by 3 inches and if you can keep that coil oriented correctly within an inch or so of another similar sized coil (charger) so you have magnetic coupling, you can get power across easy, but if you get more than a coil width away, magnetic coupling becomes insignificant. You have to be really close, but like I said, that's not what folks think of when you say wireless..
  Like I said, the square of the distance is going to kill you...
  
  --
  "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
5. Re:Square of the distance... by bobbied · 2017-02-13 14:15 · Score: 1
  
  No, they don't.... At least not at power levels that are 1. Usable to charge a cell phone and 2. Safe to operate around humans.
  I have a toll tag that is powered by reverse backscatter RF energy that is beamed to it as I pass under the reader. The "charger" RF transmitter is usually running quite a bit of power and very tight beams. The tag takes quite some time to charge and responds with a quick squawk of my tag ID that takes very little power. It cannot operate continuously even when in the backscatter field, but chirps out little bursts of energy it's collected when it can. It's very low power transfer and has a LOT of power input.
  Charging a couple of watt hours worth of cell phone battery is a whole different matter. Using reverse backscatter RF, you are going to need field strengths which are pretty high (actually dangerously high). Depending on the frequency, high field strengths can and do come with significant health and safety risks for humans. You will want to stay at lower frequencies for safety, but in order to focus that RF you will want higher frequencies to make the antenna structures smaller so they will fit in your house and car reasonably well. You cannot have both though by my estimation and as I think though what frequency a 3 - 5 inch cell phone sized antenna would be most efficient at receiving power, converting that into a frequency and consulting the FCC's data on RF exposure limits for that spectrum, it's not happening. You will either have to limit the transmitted power to nearly nothing and never be able to charge a phone, or you will risk blinding or killing humans who happen to come in contact with the charger. You will exceed RF exposure limits by a couple of orders of magnitude, or it won't charge anything like a cell phone.
  Yea, I know... But technology can fix this... Not really, it's physics at this point. You won't charge a cell phone wirelessly that's more than a few inches away from the charger. Not going to happen under the physical laws the universe works under.
  
  --
  "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
6. Re:Square of the distance... by bobbied · 2017-02-13 14:16 · Score: 1
  
  If you put your phone on a pad to charge it, the distance is pretty small... Not a problem then.
  
  --
  "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
7. Re:Square of the distance... by LynnwoodRooster · 2017-02-13 16:55 · Score: 1
  
  I believe magnets, being dipoles, fall off with the cube of distance - not square of distance.
  
  --
  Browsing at +1 - no ACs, I ignore their posts. So refreshing!
8. Re:Square of the distance... by AmiMoJo · 2017-02-13 21:55 · Score: 1
  
  No, I'm just saying that in certain applications distance is less of an issue, like beaming a gigawatt or two down from space via microwave or charging a car.
  
  --
  const int one = 65536; (Silvermoon, Texture.cs)
  SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
9. Re:Square of the distance... by mjwx · 2017-02-14 01:32 · Score: 1
  
  You do know that this technology has been around for a few good years now and most people not only know what you said, but many actually have these things at home right?
  This isn't some pie in the sky physics lab experiment that Apple are courageously innovating first to market. ...
  Actually last to market may be a more correct way of putting it.
  And on that wireless charging been a resounding failure to launch.
  
  Apple as usual is late to the party with drinks no-one likes. They're the kind of person who brings tofu burgers to a BBQ.
  
  --
  Calling someone a "hater" only means you can not rationally rebut their argument.
10. Re:Square of the distance... by bobbied · 2017-02-14 02:56 · Score: 1
  
  Distance squared always shows up in the bottom of the fraction ratio about how you get energy though any space. Even when you use energy beams, the ratio of power in to power out will ALWAYS have distance squared in the bottom of the fraction. I think the implications of this gets lost on folks who don't seem to fully understand the physical geometry of how this stuff works.
  For instance, your beaming energy back from space collectors requires HUGE structures, both in space and on the ground. This is done to try and make the ratio of power in to power out as close to unity as they can, but this doesn't remove the distance squared term on the bottom. The geometry still is about surface area of the collector and the energy density you can deliver to that surface.
  Phones are small devices and have very small surface areas. You don't have the ability to increase this surface area so you cannot take advantage of the same geometry as your space example.
  
  --
  "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
11. Re:Square of the distance... by bobbied · 2017-02-14 02:57 · Score: 1
  
  My original thought was the same, but if you consider the geometry of the situation, it's only the square once you get past 1 wave length.
  
  --
  "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
12. Re:Square of the distance... by thegarbz · 2017-02-14 08:09 · Score: 1
  
  And on that wireless charging been a resounding failure to launch.
  Hardly. Wireless charging is incredibly popular among the people who have a use case for it. Most Android phones are either available with wireless charging or can be retrofitted to include it. Furniture is being sold with charging points. Hotels are starting to include them as basic bedside features. A huge variation of devices have popped up in various settings.
  Just because not everyone wants something doesn't make it a failure to launch.
13. Re:Square of the distance... by thegarbz · 2017-02-14 08:13 · Score: 1
  
  That's a lot of text considering you missed my (very poorly made) point. So let me rephrase:
  No one will mistake this technology and everyone already understands it since wireless charging is a relatively common technology and if anyone confuses it with the technology you're describing, especially given that it's mentioned that a) it's an existing consortium responsible for Qi, and b) that the summary even clarified it's similar to what already exists on the Apple watch, then they really don't belong on Slashdot.
14. Re:Square of the distance... by kuzb · 2017-02-14 19:55 · Score: 1
  
  A few? Try well over a century. Inductive power transfer was invented in the 1800s and was used in transformers. Later in the 1973 it was used in the first iterations of RFID cards, where an electromagnetic field was used to power a passive circuit. By 1990 it was creeping in to consumer electronics devices like electric toothbrushes. In 2009 the QI standard was drafted which allowed for more efficient transfer of power to devices with under 5 watts of draw. While it is a better way of doing that specific job, the core technology is still ancient by our standards.
  
  --
  BeauHD. Worst editor since kdawson.
Project canceled: Needs too much space by Anonymous Coward · 2017-02-13 08:45 · Score: 0

Rumor is Apple is already backing out of it because they found out that the addition of wireless will take up a wee tiny little bitty weensy smidgen of extra space.
The real news though is they are still killing the external charging port. All new iPhones are expected to ship with a pre-charged non-user-replaceable battery.
They are expecting a massive increase in recurring sales.
Wait a minute by slashmydots · 2017-02-13 10:18 · Score: 0

So first of all, everything Apple has made lately seems to be lighting on fire so this sounds like a great idea. Second, isn't it around 1% efficient? A 500 watt charger to charge your iphone while it gives you 495 watts of cancer? Good idea.
We need a consortium on this? by geekmux · 2017-02-13 10:32 · Score: 1

Wireless charging tech that's years old now suddenly needs a consortium and a standard established? Uh, fucking why?
Oh, and given the revenue Apple enjoys by designing their power cords to not last worth a shit, I'm rather surprised they're even involved in this, regardless of the "courage" it takes to remove yet another interface.