Aluminum is one of today’s most commonly-used metals, but its use is relatively new. Unlike some metals, for instance gold, aluminum does not naturally occur in metallic form. Moreover, aluminum didn’t exist at all in metallic form 200 years ago.
Most of today’s aluminum is either refined from bauxite, its primary ore, or it is recycled aluminum. Recycling aluminum is increasingly common, as aluminum is infinitely recyclable and the recycling of aluminum products and alloys is very energy efficient when compared to refining bauxite.
Refining bauxite into metallic aluminum happens in two stages. Bauxite is first mined, often from shallow
Sometimes there are things in life that seem great in theory, but end up as anything but in actuality. Sure, the concept of a flying tank (for example), seems like a no-brainer…until you realize that it takes someone with no brains to try and actually turn it into reality. Likewise, the portable record player, cigarette umbrella and phone-answering robot were not objects that got their inventors mentioned in the same sentence as Benjamin Franklin, Sir Isaac Newton or Thomas Edison. As they say, there are times when great men stumble onto an ingenious concept and change the world; and
Stars can come in many forms, from gracing international stages, to selling out sporting events and captivating you on the silver screen. They can also quite literally fall from the sky and be a member of your favorite constellation. Children receive them in sticker form for a job well done, and they even have their own key on your smartphone! Yes, the star lives a very privileged life no matter what form it takes. One would think it would be quite difficult to capture any of these star varieties and have them a permanent part of your backyard space, performing … Read the rest