There are 2 causes of meningits - viruses and bacteria. Bacterial meningitis tends to be much more dangerous. Viral meningitis is referred to as aseptic meningitis and tends to be more mild. Viral meningitis usually takes 3-7 days to incubate in a person after exposure. At that point they become contagious. They usually stop being contagious after 10 days. Most meningitis is spread through saliva and mucus from the nose.
Heat travels by conduction and radiation in solids and by convection in fluids like air and water. Radiant energy waves travel from the Sun through space and become heat energy when absorbed by a substance or materialâi.e., the Earth.
The portion of the energy which is transferred by conservative forces over a distance is measured as the work the source system does on the receiving system. The portion of the energy which does not do work doing during the transfer is called heat. Energy can be transferred between systems in a variety of ways.Examples include the transmission of electromagnetic energy via photons, physical collisions which transfer kinetic energy, and the conductive transfer of thermal energy.nergy is also transferred from potential energy () to kinetic energy () and then back to potential energy constantly. This is referred to as conservation of energy. In this closed system, energy cannot be created or destroyed; therefore, the initial energy and the final energy will be equal to each other.