Viral meningitis: Meningitis caused by many viruses is usually contagious. However, certain viruses that are transmitted by mosquitoes are usually not spread person to person, so they are not contagious.
3] Heat transfers through the glass by conduction 4] Heat transfers from the glass to the outside air via convection. If the temperature differences are small and there are no winds or drafts, transfer of heat to/from air/glass will be by conduction.
When glass is heated, it softens and if more heat is applied, it begins to melt and flow. When two or more pieces of glass are heated together at first they will stick, or tack together. When heated further, they will melt together, flatten out, and become one solid piece of glass.