With the size of electronic parts and batteries these days, very small items are obviously becoming more and more viable. [Yann Guidon] has made some awesome pieces of LED jewelry using a minimal ...

Thanks to Samuel F.B. Morse, communication changed rapidly, and has been changing ever faster since. He invented the electric telegraph in 1832. It took six more years for him to standardize a code ...

There’s still plenty of reason to know how to use this Morse telegraph key. Jason Salmon/Shutterstock.com Thanks to Samuel F.B. Morse, communication changed rapidly, and has been changing ever faster ...