Can you explain the three modes of heat transfer - conduction, convection, and radiation - and provide examples of each?

The three modes of heat transfer are conduction, convection, and radiation.

1. Conduction: This is the transfer of heat through direct contact between objects. For example, when you touch a hot pan, heat is transferred from the pan to your hand through conduction.

2. Convection: This is the transfer of heat through the movement of fluids or gases. An example of convection is when warm air rises and cool air sinks, creating a convection current.

3. Radiation: This is the transfer of heat through electromagnetic waves. An example of radiation is the heat you feel from the sun, which travels through space without the need for a medium.