Submitted by CatDaddyJudeClaw t3_z4dd8j in iphone
iDarkville t1_ixqe3pp wrote
“There would also be no battery in the Apple Pencil. Instead, it would be powered by by the screen that it was touching.”
Come on, man. We don’t have to believe all the made up stuff.
mechanical_banana t1_ixqizkm wrote
I mean, that’s exactly how the S-Pen works?
tomelwoody t1_ixqo30l wrote
*Old S-Pens, newer ones have batteries.
wankthisway t1_ixssrtf wrote
They only need the "battery" for air gestures and a few other things. My Tab S7's pen is charged like once a month and it can still write.
andysaurus_rex t1_ixtbhhx wrote
But like, the technology exists… it’s not far fetched
iDarkville t1_ixqn3my wrote
The S-pen doesn’t have a battery?
Embarrassed_Win9189 t1_ixqqu7d wrote
capacitors, for the purpose of spen it achieves the same thing
iDarkville t1_ixrac0n wrote
So it does have a battery.
TagalogGyro t1_ixrc56v wrote
No it doesn’t have a battery, it has a supercapacitor.
mada447 t1_ixse5w3 wrote
What about a flux capacitor?
oreo-boi t1_ixrvly0 wrote
Batteries and capacitors are completely different circuit components.
imsolowdown t1_ixr6bhd wrote
“Stuff I don’t understand” = “made up stuff”
CakeNStuff t1_ixrev5k wrote
That’s actually very doable and is one of the bigger fields in engineering
Read: Piezoelectricity
berrymetal t1_ixuifkj wrote
This is how Wacom works
judge2020 t1_ixse1h3 wrote
I mean, what happens when your finger touches the screen is literally closing an electrical circuit; run some 5V through that safely and you’ve got power.
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