[HN Gopher] Using a magnetic string to fish for a lost iPhone 12...
___________________________________________________________________
Using a magnetic string to fish for a lost iPhone 12 in a Berlin
canal
Author : crackercrews
Score : 180 points
Date : 2021-06-04 16:53 UTC (6 hours ago)
(HTM) web link (riedel.wtf)
(TXT) w3m dump (riedel.wtf)
| shoto_io wrote:
| _> At this point, we really have to give props to the iPhone
| Hardware Engineering team: We were able to recover the device in
| perfect mint condition and without water damage. The new Ceramic
| Shield Glass really held up to the strong forces of the magnet
| and junk in the canal, and the IP68 water resistance is mind-
| blowing. And last but not least: MagSafe seems to be a perfect
| tool to recover lost iPhones from the water._
| superjan wrote:
| He was lucky. A family member spilled water over her beloved 6
| months old iPhone 12, it leaked in and caused stains on the
| display.
| orhmeh09 wrote:
| That seems like pretty bad luck! In the early months of the
| pandemic I washed my iPhone 11 daily with no ill effects.
| stu2b50 wrote:
| It was likely damaged. A fall, for instance, can damage a
| smartphone enough to break its seal while being almost
| imperceptible to humans. Making electronics water resistant
| is always a very tricky endeavor.
| superjan wrote:
| Oh probably. But a lot of people drop their phone once in a
| while. I just read about a guy dropping it into a Berlin
| canal! The thing is that if it dropped once you can't rely
| on your phone being waterproof anymore.
| ChuckMcM wrote:
| Interestingly enough, when I lived in Brussels people used
| magnets to fish stuff out of the canals on a regular basis :-)
| lots of "interesting" things are attracted to magnets.
|
| That they could snag an iPhone was pretty amazing. I would be
| inclined to fish for other phones, perhaps the folks who live on
| canal boats could 'trawl' a magnet line :-) (It's Friday, okay?)
| failwhaleshark wrote:
| LR BLE (900 MHz) is interesting and the band I worked with more-
| so than 2.4 GHz because its range was far superior.
|
| What we need is Tile Ultra or AirTag+: Underwater edition using
| 1.85 or 3.75 MHz. Or sonic pinging. :)
| yosito wrote:
| I've gotta give them props for the persistence. I would have just
| given up and bought a new iPhone. It's impressive that the iPhone
| survived the whole ordeal, without even turning off. And the
| amount of stuff they found makes me wonder why people don't use
| magnets on strings to search for lost things in European canals
| more often. Could be an interesting hobby.
| capableweb wrote:
| > I would have just given up and bought a new iPhone
|
| If people didn't already realize that most of people hanging
| around on HN have the top 10% of the world's wealth, this made
| things clearer than ever (the phone in question costs around
| 1000 EUR)
|
| Makes all the conversations around finance here make so much
| more sense.
| RcouF1uZ4gsC wrote:
| If you are making EUR200,000 per year, your time is worth
| around EUR100 per hour.
|
| Thus if this is going to take more than 10 hours, it is not
| worth your time.
| jen20 wrote:
| This is, of course, only true if you can bill someone for
| those ten hours.
| pengaru wrote:
| And even if you could, you should be billing them at a
| substantially higher rate than your normal salary already
| consuming your full-time bandwidth. These extra hours are
| precious and increasingly scarce bandwidth for self, and
| fast overlap into exceedingly inconvenient territory.
| driverdan wrote:
| This doesn't make sense. You don't work 24h a day. I highly
| doubt they went a day without pay to get the phone back.
| Even then it would still be more than a full day's worth of
| pay at EUR200,000 per year.
| pengaru wrote:
| That's very flawed and naive method for measuring value of
| one's time.
| laumars wrote:
| Why? I'm not saying you're wrong _per se_ but you offer a
| stern dismissal without any reason nor alternative.
|
| For what it's worth, I think the GP makes a pretty common
| opinion. For example people on lower incomes will do more
| household jobs themselves because it saves them money,
| whereas people on higher incomes will pay people to do
| things because it saves them time. The opinion might be
| dressed up differently when I state that but it's still
| the simple act of a person putting a value on their free
| time. It's why we have house cleaners, windows cleaners,
| gardeners, car washers, and so on and so forth. The only
| different is people don't usually casually post precise
| numeric values against their time. But it's still a
| sentiment shared by many.
| irrational wrote:
| That might make some sense if you get paid by the hour and
| can get overtime. But if you are salaried that is crazy
| talk.
| hutzlibu wrote:
| Is going to the toilet worth your time? Or would you pay
| someone to do it for you?
| 14 wrote:
| Yes that phone would cost me about 2 weeks pay. Sounds
| pathetic compared to some of the people around here but I
| actually have a very high quality of life in my opinion, just
| no iPhone 12. For 2 weeks pay I am going to make a solid
| effort for sure. On top of the cost, most people these days
| despite knowing the importance of regular backups, will not
| do so and most likely have some photos on the photos or
| information on the phone they can not lose so getting the
| phone back would be important in that aspect as well.
| GhostVII wrote:
| I suspect the vast majority of people on HN are in the top 1%
| globally. People don't realise how high incomes in the US are
| relative to the rest of the world.
| mschuster91 wrote:
| > People don't realise how high incomes in the US are
| relative to the rest of the world.
|
| Gross definitely, but net (after taxes, healthcare, housing
| and other fixed costs)... not so sure. High CoL - seriously
| even as someone who lives in Munich, US housing prices are
| _utterly incomprehensible_ , just how the fuck do y'all
| even manage to survive?! -, high costs for transportation,
| the utter madness that is US healthcare, hundreds of
| dollars for cable TV, having to save for your pension or
| student loans.
|
| I'd wager that even after accounting for taxes, most
| Europeans have more money in their pocket than Americans
| working in the same field.
|
| (And obviously, all of us have it vastly better than 99% of
| people in Africa)
| walrus01 wrote:
| If I had a dollar for every American I've seen working at
| the same companies that was spending $800+ a month for
| healthcare insurance coverage for themselves, their
| spouse, their two kids... And then they still would have
| a $8,000+ deductible for many categories of expensive
| medical costs per year, if they ever have to use it,
| before full coverage kicks in.
|
| I am fortunate enough that my spouse has her own very
| good medical coverage and we do not have kids, so our
| monthly outlays are somewhat less.
|
| If you consider that $800 to be equivalent to a tax, the
| person's take home net income was actually less than if
| they were an equivalent-of-a-W2 employee in Canada or
| another place with a social healthcare system.
| estaseuropano wrote:
| This tax just comes with no guarantees - you're out of
| the job means all that you've spent is gone. In contrast
| a decent healthcare system will take care of you even
| when you're out of a job. A hospital in UK or Germany
| won't leave you on the street, even if they know you
| don't have insurance.
| TeMPOraL wrote:
| "Globally" does a lot of the work here, though. 1% of
| world's population is a mid-sized country's worth of
| people.
| 1123581321 wrote:
| I wouldn't expect many in the 90% to buy an expensive iPhone
| in the first place. It's a narrow range that would buy one
| but not a replacement.
|
| Regardless, kudos to them for persevering. As another user
| said, many people would assume the device to be inoperable,
| even if findable, so not try.
| joe-collins wrote:
| There are a _lot_ of people in the US who buy iPhones (or
| comparable Android equivalents) on 2-year payment plans
| with carrier lock-in. Many can afford an extra $40 per
| month, but don 't have the savings to drop $1000 in one go.
|
| > In 2018, the median earnings for full-time, year-round
| cashiers were $22,109, compared with $35,301 for retail
| salespersons and $42,421 for first-line supervisors of
| retail salespersons. > In contrast, the median earnings for
| all full-time, year-round workers was $48,565 in 2018.
|
| I've spent ten years working retail here in California, and
| I'll offer my anecdata: a great number of even those
| cashiers own iPhones! Ten million people work retail in the
| US making no more than ~$40k, and that's a population that
| demonstrably owns iPhones but is hard-pressed to replace
| them on short notice.
|
| https://www.census.gov/library/stories/2020/09/profile-of-
| th...
| Tenoke wrote:
| That's less common in Europe (and Berlin specifically).
| I'm guessing even less so for something like the 12 Pro.
| 1123581321 wrote:
| Good numbers/experience. I've usually seen people in such
| situations buy refurb or a cheaper model for the rest of
| that period if their insurance policy doesn't give them a
| refurb. That's moving the goalposts a bit from buying
| another iPhone 12, admittedly.
| kirubakaran wrote:
| To be fair, HN is also confused why you wouldn't just eat
| cake.
| NoNotTheDuo wrote:
| https://www.reddit.com/r/magnetfishing/
| teachingassist wrote:
| > why people don't use magnets on strings to search for lost
| things in European canals more often.
|
| There are TikTok accounts devoted to this (where else?) - it
| seems surprisingly common to find safes.
| virtue3 wrote:
| ... or they plant them :)
| celticninja wrote:
| Nah, stolen safes end up in canals very often, guns and
| knives too. They are easy places to dispose of small heavy
| items and they usually stay hidden for a long time.
| hybridtupel wrote:
| Indeed it is [1]
|
| [1] https://en.m.wikipedia.org/wiki/Magnet_fishing
| [deleted]
| modernerd wrote:
| > ...makes me wonder why people don't use magnets on strings to
| search for lost things in European canals more often.
|
| You may be interested in "Below the Surface", an exhibition of
| objects found in Amsterdam canals that have been dated from
| 2005 (phones, coins) back to -119000 (sea shells).
|
| https://belowthesurface.amsterdam/en/vondsten
| lostlogin wrote:
| I found a load of clay pipe stems on the bank of the Thames.
| My father found a 16th century corkscrew there too.
|
| It makes a very distant past feel much closer.
| hutzlibu wrote:
| The past is all around us ... or below us.
| murkle wrote:
| It's very dangerous especially in France due to old ordinance.
| Google magnet fishing
| verst wrote:
| Same in Germany. I never considered magnet fishing growing up
| there and now I remember why: it was super common for WW2
| explosives to be found that didn't explode on impact but had
| corroded over time.
| crackercrews wrote:
| "Ordinance" is legislation. "Ordnance" is the explosive
| stuff. Old ordinance can also be troublesome, but is rarely
| deadly.
| abrowne wrote:
| At least in jurisdictions that have abolished capital
| punishment.
| tshaddox wrote:
| Also, at least in American English, "ordinance" is not a
| mass noun. An ordinance is a piece of legislation. So I
| would say " _an_ old ordinance can also be troublesome..."
| scrollaway wrote:
| I'm not GP but as a non-native speaker, thanks for the tip!
| I never realized :)
| jkubicek wrote:
| I'm a native english speaker, and I also never realized
| those were two different words.
| celticninja wrote:
| And just to confuse things a little more we have in the UK:
|
| https://www.ordnancesurvey.co.uk/
|
| Which is not a survey of explosive devices.
| leoedin wrote:
| But it is (or was, originally, when it was named) a
| survey for directing military ordnance.
| nicoburns wrote:
| Huh, and I've been pronouncing that ordinance. I guess
| those two words are pretty similar.
| riekus wrote:
| My 12 year old niece fished a handgun out of a canal couple
| months back, that is pretty uncommon heren in the Netherlands
| Animats wrote:
| _Why people don 't use magnets on strings to search for lost
| things in European canals more often. Could be an interesting
| hobby._
|
| Magnet fishing is a thing. There are web sites for it. Amazon
| sells kits with very strong magnets and ropes.
| pvaldes wrote:
| Maybe is the combination of rust iron, salmonella, chilling
| cold water and skin cuts.
|
| Aren't such big magnets an hazard for anything digital near
| them? Everything has a computer inside now, starting by cars.
| hutzlibu wrote:
| "Maybe is the combination of rust iron, salmonella,
| chilling cold water and skin cuts."
|
| Add old explosives with rusty triggers to the list.
| Cerium wrote:
| Large permanent magnets are a fairly minor hazard to most
| electronics.
| lostlogin wrote:
| A phone or iPad will take 3T and work ok afterwards. I've
| seen engineers photograph the cold head on an MR scanner
| and the phone has held up just fine.
|
| Sometimes they turn off for a bit and need a little rest.
| TeMPOraL wrote:
| > _Sometimes they turn off for a bit and need a little
| rest._
|
| Could it be because of a helium leak?
|
| https://hackaday.com/2018/10/31/helium-can-stop-your-
| iphone-...
| ska wrote:
| Unless they are taking the photo from near or in the
| bore, the camera isn't seeing anything like 3T (or, for
| that matter 1T).
|
| Most such photos are taken from outside the 5G line which
| is a very different kettle of fish.
|
| You are right that lots of electronics will be safe in
| the sense that it will not function in the field but be
| ok afterwards outside the room - so long as you don't
| move it around too fast.
|
| On the other hand, most consumer electronics would likely
| fly out of your hand and smash into the bore well before
| you get anywhere close to the peak strength.
| lostlogin wrote:
| The camera is taken right up to the bore. You're right,
| it wouldn't be 3T, but it's getting close and it's way
| inside the 5g line.
|
| The iPhones I have seen go in have not had a lot of pull
| and can be held, even close to the bore (less than 1m).
|
| The service instructions require photographs of various
| component - I watched a cold head get photographed
| recently.
|
| I've also seen an engineer take a laptop pretty close. It
| turned off but didn't suffer any lasting ill effects as
| far as we could tell.
|
| All this fits in the category of 'don't do this', but
| with care it is done by the engineering staff.
| ska wrote:
| Ah, service tech makes sense. Most others aren't going
| see anything interesting in the photo that close.
|
| Laptop is pretty crazy, what where they (not) thinking? I
| guess was imagining "normal" camera not phone, but you
| are right that modern attempts to make phones light have
| removed most of the magnetic material.
|
| It doesn't take much to make it a problem (e.g. steel
| screws). Typical rooms are going to over 20g acceleration
| on ferromagnetic components in the highest gradient
| regions.
| lostlogin wrote:
| Absolutely. The engineer with the laptop had a brain fade
| - his area was usually CT.
|
| As magnets have got better control over their fringe
| fields, the issue has got worse. The field goes from
| nothing to 3T in a very short distance, so 10+ T/m rate
| of change is not uncommon.
| canadianfella wrote:
| An?
| walrus01 wrote:
| > the iPhone survived
|
| They had a lot better chance of success since it was fresh
| water, vs if it had fallen in the ocean...
| yosito wrote:
| I'm not sure I would call the water from the video "fresh"...
| walrus01 wrote:
| but certainly less conductive in terms of total dissolved
| salts than the ocean. I meant "fresh" water in the sense
| of, not ocean water, not something you'd want to drink :)
|
| https://www.lenntech.com/applications/ultrapure/conductivit
| y...
| walshemj wrote:
| They do quite often the find dumped guns etc search for magnet
| fishing videos on YouTube
| [deleted]
| geocrasher wrote:
| If you got an email in your inbox that said to click a link to
| find out what personal item of yours somebody had found with a
| magnet, would that be considered magnet phishing?
| toxik wrote:
| Only if you provide proof by a magnet link. Magnet magnet
| fishing phishing.
| pmlnr wrote:
| They do. Cambridge, UK, has regular magnet fishers.
| deluxeroyale wrote:
| My GF dropped one of her airpod pro's in a storm drain. I taped
| some rare earth magnets (extracted from some old e-junk) onto a
| foldable ruler. The airpods end snapped onto the magnets and I
| fished it up!
| dctoedt wrote:
| I hope the guy's immunizations are up to date, given that he
| initially jumped into the canal and tried diving down for his
| phone.
| sjm wrote:
| What a great excuse to give to those ignored Tinder matches.
| 101008 wrote:
| Or a great conversation starter!
| vonWegen wrote:
| 50% chance that this story was staged...
|
| ... there is a pretty "hip" German pop song, that makes fun about
| dropping an iPhone into the Landwehrkanal...
|
| https://www.lyrics.com/track/33176002/Von+Wegen+Lisbeth/Ch%C...
| magoon wrote:
| I'm surprised to hear that bluetooth, GPS, and cellular don't
| work in water. I wonder what's the science behind this.
| Sharlin wrote:
| It's why we use sonar rather than radar to see underwater...
| Indeed also the reason we can use radar to detect rainclouds.
| naikrovek wrote:
| water absorbs 2.4GHz readily. this is why microwaves use that
| frequency to heat your food. microwaves are why that frequency
| band is unlicensed, too.
|
| so that's Bluetooth and wi-fi ruled out.
|
| GPS is a lower frequency, ~1.5GHz I think, and GPS is already
| an extremely low power signal.
|
| I don't know about 4g or 5g though.
| kelnos wrote:
| 4G and 5G are going to depend on the mobile carrier. In the
| US, at least, that's usually going to be somewhere between
| 850MHz and 2100MHz. I recall reading something more recent
| about 700MHz being opened up in some areas.
|
| Looks like Germany is 700-2600MHz for 4G, with 5G up at
| 3500MHz[0].
|
| For underwater stuff it looks like you need something _much_
| lower in the kHz range[1], at least for distances of up to a
| couple hundred feet. Obviously this particular situation
| involves a much shorter distance. The page on MF radio[2]
| does mention water, and talks about frequencies up to 3MHz,
| but that 's still way lower than any LTE bands used.
|
| [0] https://www.gsmarena.com/network-
| bands.php3?sCountry=GERMANY
|
| [1]
| https://en.wikipedia.org/wiki/Communication_with_submarines
|
| [2] https://en.wikipedia.org/wiki/Medium_frequency
| ac29 wrote:
| Verizon has used 700MHz for a long time, its their primary
| band. T-mobile uses 700MHz and 600MHz in many areas
| (generally as range extension, not a primary band).
| [deleted]
| kajecounterhack wrote:
| Radio is part of the EM spectrum. EM waves (including light)
| decay under water at an exponential rate due to absorption by
| the medium. So data transmission underwater must rely instead
| on mechanical waves (sound).
|
| This is why underwater robots mostly use tethers, otherwise you
| couldn't control them very well (RC control would stop working
| at a very shallow depth).
|
| Note: why are folks downvoting an honest question?
| potatoman22 wrote:
| Don't EM waves decay at an exponential rate in all mediums?
| msandford wrote:
| Sure but what's the exponent?
| Filligree wrote:
| No, usually it's polynomial. Radius squared, that is.
| hutzlibu wrote:
| "Note: why are folks downvoting an honest question?"
|
| I suppose because of Friday.
| zamadatix wrote:
| Not much different than why they don't work through the ground
| - it's mass that absorbs a wide range of frequencies.
| anfractuosity wrote:
| That's a good question, submarines use very low frequencies for
| communication, so I assume bluetooth/GSM might be pretty
| attenuated by the water? But also it might have turned off due
| to the water shorting something?
| kajecounterhack wrote:
| Signal attenuation is correct.
| anfractuosity wrote:
| Are different frequencies attenuated differently then out
| of interest in water?
| xhrpost wrote:
| Yes, generally the smaller the wavelength, the worse the
| attenuation. Quick googling: 4g is 600Mhz to 2.5Ghz or
| 0.5m to 12.5cm wavelength. For comparison, the US Navy
| uses 80Hz or 3750km wavelength to talk to submerged
| submarines.[1]
|
| [1] https://en.wikipedia.org/wiki/Ground_dipole
| zepearl wrote:
| From https://en.wikipedia.org/wiki/Ground_dipole :
|
| > _After initially considering several larger systems
| (Project Sanguine), the U.S. Navy constructed two ELF
| transmitter facilities..._
|
| > _Both transmitters were shut down in 2004. The official
| Navy explanation was that advances in VLF communication
| systems had made them unnecessary._
|
| I then started reading about VLF
| https://en.wikipedia.org/wiki/Very_low_frequency and on
| that page I see this sentence:
|
| > _VLF waves used to communicate with submarines have
| created an artificial bubble around the Earth that can
| protect it from solar flares and coronal mass ejections;
| this occurred through interaction with high-energy
| radiation particles._
|
| That sounds absolutely weird - how should that "...that
| can protect it from solar flares..." be interpreted?
|
| EDIT: didn't notice Wikipedia's linked article -
| https://www.theatlantic.com/science/archive/2017/05/wow-
| guys...
| kajecounterhack wrote:
| Different frequencies are attenuated differently, yes. So
| like, green laser vs red laser will have different max
| distances under water.
|
| Fun fact, salinity of water also affects transmission. So
| rate of transmission in a lake vs ocean is also going to
| be different.
| js2 wrote:
| https://en.wikipedia.org/wiki/Communication_with_submarines
| detaro wrote:
| water absorbs electromagnetic waves, especially high frequency
| ones. That's why your microwave heats things :D
| kazinator wrote:
| Fairly big topic:
| https://en.wikipedia.org/wiki/Dielectric_heating
| moepstar wrote:
| Signal also drops out pretty fast - once you go past a few cm
| (lets say 3-5cm, about 2") signal is out...
|
| I once tested that with a waterproof phone in clear water,
| can't recall which phone it was tho...
|
| Don't feel brave enough to try it with my iPhone 8, even tho it
| supposedly is waterproof as well - my SO once tested it with a
| spilled drink...
| em_rocks wrote:
| Most water you'd drop a phone into has enough traces of salt to
| make it conductive. Therefore, the water acts like a faraday
| cage.
|
| Theres a calculation you can do to calculate this, its pretty
| standard E&M stuff. Basically you calculate the skin depth of
| the material and thats as far as the signal can penetrate. The
| derivation highlights some cool things:
|
| 1. Its frequency dependent. This is why military submarines
| communicate at around 30 Hz.
|
| 2. Your audio cable (and all high frequency power cables) are
| stranded
|
| 3. Your microwave is effectively shielded with a thin layer of
| metal
|
| 4. An induction stove wont work with Al pans, but will quickly
| melt Al foil
| frosted-flakes wrote:
| Wow, that's fascinating. I've never heard of this--I assumed
| it was only because the water is dense enough that it absorbs
| the radio signals.
| walrus01 wrote:
| > I wonder what's the science behind this.
|
| the same general reason why microwave band radio sees signal
| fade when there's rain on a point-to-point link through the
| air, but magnified greatly since the radio is now inside a
| solid mass of water. One of the problems faced by modern
| submarines for data communications, they use either ELF/VLF
| trailing antennas that are spooled out, while running 'kind of'
| shallow, or buoys, or antennas on periscope masts.
| tantalor wrote:
| > something happened that nobody of us would have imagined...
| this was the missing iPhone
|
| What a strange phrase, considering that was the goal.
| jdiez17 wrote:
| Yeah, but I think most people would think there would be a very
| very low chance of succeeding in this crazy endeavour.
| supernova87a wrote:
| I just find the German text message entertaining. The words and
| syntax are great.
|
| "Mir ist grad mein handy in den Landwahrkanal geplumpst"
|
| Geplumpst! Sounds exactly the right word for what just happened.
|
| "Jetzt konnte ich ein Bier gebrauchen"
|
| Couldn't we all.
| ALittleLight wrote:
| Google translating here - is it because plumpst means "fallen"
| and also sounds like the sound a phone might make when falling
| into a canal?
| thih9 wrote:
| Could someone translate?
| iso1210 wrote:
| From the context and the word "Bier", "I'd like to grab a
| beer" perhaps
| 1986 wrote:
| "My phone just plopped into the Landwehr Canal."
|
| "Hahaha and now what"
|
| "Great question"
|
| "Now I could use a beer."
| merlincorey wrote:
| > Geplumpst
|
| Basically means something fell or as Google Translate says
| "flopped" -- however, GP seems to be excited over the
| apparent onomatopoeia in the word because it evokes the sound
| of something falling in water.
|
| > "Mir ist grad mein handy in den Landwahrkanal geplumpst"
|
| This essentially says "My cellphone fell in the canal!" but
| with the delicious "geplumpst" word sound.
|
| > "Jetzt konnte ich ein Bier gebrauchen"
|
| This exclaims "I could use a beer now".
| stronglikedan wrote:
| > Mir ist grad mein handy in den Landwahrkanal geplumpst
|
| My cell phone just fell into the Landwehr Canal
|
| > Jetzt konnte ich ein Bier gebrauchen
|
| I could use a beer now
|
| (Google's translations, not mine)
| pbueckle wrote:
| "geplumst" is the funny part here, it's very colloquial,
| kinda silly-sounding, playful - similar to "plumped". Just
| makes the whole sentence more delightful.
| julienfr112 wrote:
| I'm confused. I thougt iphone where made of aluminium, that is
| not attracted by a magnet ...
| Wevah wrote:
| Newer iPhone models have magnets in them to attach to various
| chargers and accessories.
| frosted-flakes wrote:
| It's also not uncommon to stick a metal disc on the back of
| the phone for magnetic vehicle dashboard mounts.
| [deleted]
| kokey wrote:
| I'm happy for them. An FPV drone of mine bounced into a canal
| recently and the motors get attached to magnets relatively
| easily, but I couldn't ever find it again even while fishing for
| hours with a large magnet fishing magnet.
| tj-teej wrote:
| Maybe this is a naive question: but I remember growing up there
| was a hard and fast rule that you could not have magnets anywhere
| near your technology, is this not the case anymore?
|
| Was it only floppy-disks and disk based tech which had issues?
| thirsteh wrote:
| Yeah, there are not many moving parts now. It messed with read
| heads in HDDs as well as CRT monitors.
|
| I still get nervous if there are magnets around cause I don't
| know how they work.
| swiley wrote:
| >without water damage
|
| IME you have to wait a few weeks to decide that one
| unfortunately. (on the other hand, if my iphone still worked I
| probably wouldn't have been motivated to get things like power
| management working on my pinephone.)
| Freestyler_3 wrote:
| How much volume of air must be inside a standard phone these days
| to make it buoyant?
| mgerullis wrote:
| There's this anecdote of Steve Jobs saw a prototype for an iPod
| and dropped it in a water tank in order to proof his engineers
| that they could make it smaller, because it had bubbles of air
| coming out.
|
| https://tekdeeps.com/steve-jobs-threw-an-ipod-into-a-fish-ta...
| teddyh wrote:
| That's an old urban legend which has been told about many
| people and companies.
| widforss wrote:
| The calculation pretty much boils down to changing the phone's
| weight in kg to a volume in l.
| fnoof wrote:
| An iPhone 12 weighs 164g [1], so, through the magic of the
| metric system, it needs to displace a minimum of 164ml of water
| to float.
|
| The iPhone has an external volume of 14.67cm * 7.15cm * 0.74cm
| = 77.62cm^3 = 77.62ml. So it would need to be about 2x the
| volume to float.
|
| [1] https://www.apple.com/iphone-12/specs/
| Freestyler_3 wrote:
| Yeah thanks, I looked it up and got those numbers from
| calculations but wasn't sure if that was the right way to
| just calculate that because I am not familiar with it.
| kakkan wrote:
| Time to roll back this innovation and release the new iphone
| with 2x volume so that it'd float.
| justusthane wrote:
| Lifeproof used to make an add-on life jacket that fit
| around their cases.
|
| https://duckduckgo.com/?t=ffab&q=lifeproof+case+life+jacket
| &...
| brewdad wrote:
| Meet the new iPhone Air...
| psychomugs wrote:
| Cigarette in mouth on the uptake adds to the absurd coolness of
| the ordeal.
| 1970-01-01 wrote:
| #magnetfishing for more of it
| xchaotic wrote:
| " The best thing is, the screen turned on immediately, delivering
| missed Tinder notifications, without any damage." I hope the guy
| finally gets some action - I mean he's got iPhone 12 Pro with a
| magnet. Must work on the chickas too, right? ;)
| teachingassist wrote:
| iPhones 7 through 11 felt increasingly easy to destroy with the
| slightest touch - not so the iPhone 12.
| crackercrews wrote:
| Just because of the rounded edges that made it slippery?
| Infernal wrote:
| Interesting. I skipped from an iPhone 6 to an 11 Pro, and when
| I pick up my old 6 now it is both so thin and light as to feel
| very fragile, whereas the 11 Pro has a dense, hefty, solid feel
| in comparison. I have briefly used someone else's iPhone 12 and
| it didn't feel any different from my 11 Pro, to me. YMMV and
| all that.
___________________________________________________________________
(page generated 2021-06-04 23:01 UTC)