Which of the following method of heat transfer will work in empty space (or vacuum) ?
Convection, Radiation, Conduction

Explanation

To solve the question of which method of heat transfer works in empty space or vacuum, we can analyze each of the three methods: conduction, convection, and radiation.

### Step-by-Step Solution:

1. **Understanding Heat Transfer Methods**:
- **Conduction**: This method involves the transfer of heat through direct contact between materials. It primarily occurs in solids where particles are closely packed and can transfer energy through collisions.
- **Convection**: This method involves the transfer of heat through fluids (liquids and gases) due to the movement of the fluid itself. It requires a medium (fluid) to transfer heat.
- **Radiation**: This method involves the transfer of heat in the form of electromagnetic waves. It does not require any medium and can occur in a vacuum.
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