I wonder if you could find bright shapes on a black bacground. But Braille haptic devices and speech synthesizers did exist back then so that’s not a practical visually-impaired aid.
I have a small number of fine hairs on the back of my fingers’ first section. That’s the sharpest and most sensitive body part that fulfils the criteria and I think I could “scan” the screen with it. I also remember feeling something with the tips of my fingers, maybe ionic wind or capacitive current flow at 60 Hz (refresh rate).
Wild that most households just used to have a 25kV particle (electron) accelerator but maybe an array of 3x800x600 transistors (TFTs) wired by transparent coating on glass is wilder.
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I wonder if you could find bright shapes on a black bacground. But Braille haptic devices and speech synthesizers did exist back then so that’s not a practical visually-impaired aid.
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You didn’t only use the back of your arm, did you?
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I have a small number of fine hairs on the back of my fingers’ first section. That’s the sharpest and most sensitive body part that fulfils the criteria and I think I could “scan” the screen with it. I also remember feeling something with the tips of my fingers, maybe ionic wind or capacitive current flow at 60 Hz (refresh rate).
Wild that most households just used to have a 25kV particle (electron) accelerator but maybe an array of 3x800x600 transistors (TFTs) wired by transparent coating on glass is wilder.
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