Lithium be cut with a knife. When cut, it possesses a silvery-white color that quickly changes to gray as it oxidizes to lithium oxide. While it has one of the lowest melting points among all metals (180 °C), it has the highest melting and boiling points of the alkali metals. Lithium has a very low density (0.534 g/cm), comparable with pine wood. It is the least dense of all elements that are solids at room temperature; the next lightest solid element (potassium, at 0.862 g/cm) is more than 60% denser. Furthermore, apart from helium and hydrogen, it is less dense than
Solid (web decentralization project) in a specific pod. The user retains complete ownership and control of data in the user's pods: what data each pod contains, where each pod is stored, and which applications have permission to use the data. In more detail, Solid consists of the following components: Solid (web decentralization project) Solid (Social Linked Data) is a web decentralization project led by Tim Berners-Lee, the inventor of the World Wide Web. The project is run from the Massachusetts Institute of Technology (MIT). The project "aims to radically change the way Web applications work today, resulting in true data ownership as well as