How about playing cards where the card is in reality a small block of plastic with embedded electronics and an E Ink display on top? Howsoever outrageous that might seem, it has been turned into ...

Before LCDs and LEDs became cheap enough to add to nearly any device, mechanical flap displays were used in large-scale signage and bedside alarm clocks for improved legibility. Shinsaku Hiura has ...

The first record of playing cards dates back to 9th-century China, which would place their invention around the same time as gunpowder and more than 500 years before the printing press. But their ...