Within a small chamber, an internal combustion engine combines a precisely measured mix of fuel (typically petrol or diesel) and air. Once ignited, this explosive combination causes an expansion of hot, pressurized gases to exit the chamber, typically via pistons or a turbine. Thus the chemical energy is converted, albeit often not very efficiently, into mechanical energy which can then be used to power motors and drive machines.
The Declaration contains the idea that if<span> the government must be overthrown, a new government must be set up to safeguard the first three conditions</span>
