Viscosity is the resistance to flow (opposite of fluidity). Viscosity depends on primarily on the composition of the magma, and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with increasing SiO2 concentration in the magma). Lower temperature magmas have higher viscosity than higher temperature magmas (viscosity decreases with increasing temperature of the magma).
Google does not specifically recommend either DirectX or OpenGL for Google Earth. You can configure Google Earth to operate in either DirectX or OpenGL rendering modes.If your system crashes or performs poorly in one mode, Google recommends you switch to the other mode.penGL Overview. OpenGL is a platform-neutral, open API for rendering graphic images. Although the API is different, OpenGL provides Google Earth with the same graphics performance enhancements as DirectX. OpenGL was originally developed by Silicon Graphics Incorporated.
Before you can import gpx into Google Maps you need a gpx file. To be able to use Google Maps or Google Earth as a GPS track viewer you first have to have a way to record a GPS track. A track is simply a file in which information about your location is recorded several times a minute during your hike.he track files use a particular data format called GPS eXchange (.gpx). You can open these files in a text editor, such as Windows Notepad, and read the information it contains for yourself. If youâre planning to use a smartphone to record your tracks, youâll need to download one of the many available GPS apps.