Engineeringness on MSN

LEDs Explained: How Light Emitting Diodes Work

This video explains how LEDs (Light Emitting Diodes) function and why they are widely used in modern lighting and electronic ...

7 Nail Mistakes That Make Hands Look Older—and What To Try Instead

And Garcia suggests almond or even coffin shaped nails to "help make your hands look more slender," while avoiding square or duck nails. "The wrong shape can make your hands look wider and older," ...