Did someone here NFCKill a flex?
Does it melt the polymer?
Unlikely: the NFCkill induces a high-voltage pulse to fry the chip, but it doesnât really transmit a lot of power - and certainly not continuously.
Even if it did, the circuit would almost certainly break instantly, prevent any further power transfer.
I just read on Discord it can melt plastic cards so I think itâs not that unlikely, but maybe thatâs because of the low melting point of pvc cards.
Well, thatâs your problem right there ![]()
Also, remember that the implant is in your body. Thatâs like a giant heat sink. Youâll never melt plastic without boiling the water off the surrounding tissue first. Physics is a bitch like thatâŠ
I did the reverse experiment a while ago: I tried to cook myself in the sauna to see how hot my xBT would get. The sauna was like 80C and I stayed in there for a good long while. When I came out, the xBT registered at a measly 41C immediately after.
Nice! I like hotter saunas but Iâm not finnish so take my opinions with a grain of salt.
I assumed that the temperature on the inside of the human body was more stable but then again, the facia is superficial.
Iâve used a microwave to kill unwanted HID badges, only takes about 3 seconds. Sometimes it leaves a hole in the plastic sometimes it just swells it.
Also, Iâve had t5577 tokens sewn into the sleeves of my shirt to use as a badge, after approximately 180 times of washing and drying the shirt they get slightly deformed and quit working.
My xBT is skin-deep. Itâs under my armpit. My experiments with it show that for a constant core body temperature, the maximum temperature difference between arm down and arm up is 1.5C. So thatâs roughly the thermal loss when the skin isn directly exposed to air.
So to an extent, my xBT was exposed to the saunaâs ambient temperature also. But my body absorbed most of that heat of course.
⊠in air. With 1000W of power.
True, I donât see anyone microwaving their hand anytime soon. ![]()
Put those cards into water and see what happens in the microwave
I did experience high-power microwaves once: we had a 2.4 GHz long-distance data transmission dish on the roof of the building at work many years ago. I was up on the roof setting up a timelapse camera that I had built to record the construction of our new building across the street. At some point I walked across the roof to the mains outlet and suddenly experienced a really weird feeling inside me - like a combination of the heat flash you get after gulping down a shotglass of hooch and static. I wondered what was wrong was me for a second, until I turned around and found myself staring at the dishâs head.
Scared me shitless.
Iâll try it next time.
That wonât prove anything: the water will absorb most of the power.
A better test would be to try and provoke heating of the card in air and in water with a QI charger or something: assuming it doesnât die immediately and starts sizzling in air, I guarantee you it wonât do a damn thing in water.
That was exactly my point⊠kind of backing up your water absorbs the energy thing
Yeah I know but I meantâŠ
If you stick a card in water in the microwave, the microwaves themselves will be absorbed by the water. Probably not much of em will make it to the chip. But what you want to prove here is that heat generated from within the chip from induction will be absorbed by the water. Itâs not the same experiment.
I mean it wasnât any discord, it was ours so I assumed they didnât just lie.
Also regarding your sauna experience, the heat came from outside. But here itâs the other way around.
Once the water around the flex boils the polymer must be 100° already, that doesnât sound too promisingâŠ
If you donât play with microwave transformers that is, yeah ![]()
So reading your responses it sounds like it was never tested.
Amals usually right about this stuff, but still⊠the tests performed on flex implants thread is kinda small and Iâd like to see NFCkill there.
Hehe. How quaint ![]()
Discord is bonkerland. Anything said on any Discord should be taken with a pound of salt. âOursâ (well yours really, I donât want anything to do with it) is just a different flavor of bonkeroonie. Surely if youâve spent any time on it, you might have noticed.
I just used the example to show that the body is a good heat sink - and has a lot of thermal inertia too.
Yeah, ofc, but you can also fake whitepapers and stuff. Thatâs why I want an experiment done by a trusted source, amal.
You guys talk like itâs only impossible because of the skin around it, so you do not doubt that cards can be molten, right?
Iâm just not convinced⊠even with good heat sink properties, the polymer is directly in contact with the source of the heat.
Itâs possible to have a heat source under your skin thatâs so intense itâll melt before the water in the body wicks it away. But itâs not gonna come from an implant, is my point: any induction strong enough to generate that much heat will bust the thin coil wire of the antenna or the chipâs internal leads and break the circuit long before it has a chance to start heating up even a little bit.
Maybe, just maybe, you might have a chance to heat it to destruction in air with a QI charger. But I doubt even that would happen before destroying the chip.
And microwaves donât count, because theyâre a different thing (we were talking solar flares originally) and theyâd heat your meat as well as the chip.
Sounds like I need to get a junker microwave from somewhere and set up a video camera