Thirty years ago, technology was a relatively new concept. Things like cell phones, social media, and the internet were mostly unheard of and only a...

Every time you catch a cold, you probably notice how clogged your nostrils become. This is often caused by the build-up of mucus due to infection,...

Our body, like any other system, has a source of power. Take, for example, batteries. Batteries are devices consisting of chemical cells, mainly...