#Batteries and Charging
3 stories on this topic, newest first.
Engineers at UC San Diego built a smart ring prototype that reads glucose, lactate, and electrolytes directly from fingertip sweat pores without needles. The biochemical micro-sensors replace standard optical trackers with real metabolic data, though packaging the tech into retail jewelry remains years away.
Physicists have demonstrated a working quantum battery prototype that charges faster as its capacity grows, using superradiance instead of chemical reactions. While the breakthrough eliminates charging heat and cell degradation, the bulky optical setup cannot yet store or steadily release power for mobile hardware. Mainstream smartphones will rely on standard lithium-ion packs for years to come.
Sony has introduced a $350 27-inch gaming display equipped with a built-in DualSense charging cradle in the base. The design eliminates desktop cable clutter for console players, though standalone docks offer the same utility for a fraction of the cost.