No comment on the press conference?
in [UK Mac]
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From: zoara on 20 Jul 2010 11:02 Pd <peterd.news(a)gmail.invalid> wrote: > Bruce Horrocks <07.013(a)scorecrow.com> wrote: > >> On 19/07/2010 09:34, zoara wrote: >>> You're saying that even if you deliberately try, you can't trigger > > > the >>> death grip? You can't get it to go to No Signal where the 3GS will >>> continue to hold signal? >> >> I'm sure it's something to do with the natural variance of the >> electrical conductivity of the skin between different people. If you > > and >> Zoara could both stick your fingers into a 240v socket and report > > your >> responses, I'm sure we could compare them. > > I know zoara said he's got small thumbs, but are his fingers really > small enough to fit into a 240v socket? Or would he have to trim them > down with a pencil sharpener first? http://j.mp/apCoB1 -- email: nettid1 at fastmail dot fm
From: Jaimie Vandenbergh on 20 Jul 2010 12:35 On Tue, 20 Jul 2010 15:43:50 +0100, peter(a)cara.demon.co.uk (Peter Ceresole) wrote: >zoara <me18(a)privacy.net> wrote: > >> > http://www.etsy.com/listing/51772143/antenn-aid-for-iphone-4-6-pack >> > >> >> Heh, that's pretty funny... > >Actually, it looks highly practical. Neat, even. Does it work, in >reality? Probably makes no difference - tape over the metal doesn't make any apparently, so it's capacitance effects rather than conductance that seems to matter. Cheers - Jaimie -- "Those are my principles. If you don't like them, I have others." - Groucho Marx
From: Peter Ceresole on 20 Jul 2010 12:55 Jaimie Vandenbergh <jaimie(a)sometimes.sessile.org> wrote: > Probably makes no difference - tape over the metal doesn't make any > apparently, so it's capacitance effects rather than conductance that > seems to matter. But capacitance is pretty critically affected by separation and the dielectric constant of the separator. Not that this isn't a major cockup by Apple- and one that may end up costing them dear. -- Peter
From: Jaimie Vandenbergh on 20 Jul 2010 12:59 On Tue, 20 Jul 2010 17:55:08 +0100, peter(a)cara.demon.co.uk (Peter Ceresole) wrote: >Jaimie Vandenbergh <jaimie(a)sometimes.sessile.org> wrote: > >> Probably makes no difference - tape over the metal doesn't make any >> apparently, so it's capacitance effects rather than conductance that >> seems to matter. > >But capacitance is pretty critically affected by separation and the >dielectric constant of the separator. Zoara's recent post somewhere nearby says that kaptan tape reduced signal degradation a bit, so it does have some effect - not as much as a case, with wider separation. >Not that this isn't a major cockup by Apple- and one that may end up >costing them dear. More like a reduction in the average rate of increase in their share price than an actual drop, I'd say. Cheers - Jaimie -- If it's worth doing, it's worth overdoing.
From: Jochem Huhmann on 20 Jul 2010 18:26
zoara <me18(a)privacy.net> writes: > Problem is, Anandtech's “cupping tightly” is the (presumably unnatural) > grip required to trigger the problem, rather than their (presumably > natural) “holding naturally” grip mentioned in the first table [1]. If > we assume that the decrease in signal drop is of the same percentage [2] > when “holding naturally” then the signal drop of the iPhone 4 would go > from 19.8 to 13.4. That makes it a fair bit closer to the Nexus One > (10.7) but still miles away from the iPhone 3GS (1.9). I agree that it would be really useful to do some (much) more testing. I find it highly absurd that with all the commotion going on there is only so little of actual measuring done. I hope that when the jailbreak will be available (it is said the developers only wait for Apple to release 4.1) this will become much easier to do. There's already an app for getting some real numbers: http://www.tuaw.com/2010/07/06/video-evidence-of-the-iphone-4-death-grip-this-time-with-real/ > It seems odd to me to compare “trying to trigger the problem” figures > without comparing “trying to use the phone” figures. Particularly as > “trying to trigger the problem” grips can be very unusual indeed (see > the handful of videos that Gruber has linked to from > daringfireball.net). Here is an article which has a bit more data and some different grips: http://www.antennasys.com/antennasys-blog/2010/7/14/iphone-4-meets-the-gripofdeathinator.html Jochem -- "A designer knows he has arrived at perfection not when there is no longer anything to add, but when there is no longer anything to take away." - Antoine de Saint-Exupery |