Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Yarilet Perez is an experienced multimedia ...

Ruby and sapphire are varieties of the mineral corundum. - Courtesy Hamilton Jewelers Ruby is one variety of the corundum mineral species, which also includes sapphire. Ruby is highly regarded and can ...

Abstract: For the designing of the new technical systems are used the databases of chemical, physical and technical (sci-tech) effects and morphological features (technical functions, structural ...

The best gimbals for mirrorless and DSLR cameras are the only reliable way to produce super-smooth camera movements in your videos. Built-in stabilization systems can be useful, but they don't compare ...

Searching for the best image-stabilized binoculars? This guide will walk you through the key options and help you choose the right pair - while making sure you get the best value for your money. The ...