World's Smallest Bluetooth Speaker Build DIY
Gadget Industry wanted to build the world’s smallest Bluetooth speaker, so they began by disassembling a regular module to see how small they could make things. To begin, they ripped the antenna directly off a 3W Bluetooth amp module, then had to rebuild the entire thing by hand after stacking the components. This small electronics stack is slapped onto the back of an 18mm x 14mm 3W speaker driver. A TP4056 charging module received the same treatment, being disassembled and reassembled to fit the small space required.

Swedish Torch One Log Fire How To
One log stands alone on an open area of land, waiting for the transformation to begin. Someone with a chainsaw approaches, and within minutes, that single piece of wood is split up and transformed into a steady burning fire capable of warming hands, boiling water, and cooking a meal. This invention, known as the Swedish Torch, takes scarcity and simply whacks it away with a few straight cuts and some dry tinder.

NASA James Webb Space Telescope Helix Nebula Aquarius
The Helix Nebula is one of the most beautiful planetary nebulae visible from Earth, and NASA’s James Webb Space Telescope recently captured the finest image yet. This bright shell of gas and dust, located approximately 650 light-years away in the constellation Aquarius, is the last act of a star that bears a remarkable likeness to our own sun. The most recent near-infrared measurements have pinpointed a portion of the nebula in extraordinary detail, revealing far more than previous observatories could detect.