Sinoatrial node. The sinoatrial node (SAN; also known as sinus node) is a group of cells located in the wall of the right atrium of the heart.
How Do Web Browsers Work? The World Wide Web is a system of Internet servers that support specially formatted documents. Web browsers are used to make it easy to access the World Wide Web. Browsers are able to display Web pages largely in part to an underlying Web protocol called HyperText Transfer Protocol (HTTP).
The Best Web Browser to Use in 2016. Best Web Browsers of 2016. You may be wondering what the best web browser is in 2016, but first itâs important to understand what a web browser is and does. A web browser, to put it simply, is an application used to move around the world wide web.