A unique mechanical design aspires to remove heat from this LED light bulb’s insides, but you still need to keep external ventilation in mind.
Dhananjay Gadre] happened across a useful little trick the other day. Take any old 1N4148 or 1N914 glass-package signal diode ...
Indian Defence Review on MSN
A Raindrop, Some Water—And Suddenly, Enough Power to Light Up 50 LEDs
Scientists in China have created a lightweight floating device that captures energy from falling rain. Instead of relying on rigid materials, the new generator uses natural water as part of its core ...
Liquid metal controlled by low voltage reversibly switches color and infrared response in nanoscale surfaces, enabling low power reflective displays, sensors, and optical security features.
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