In order to melt metals such as gold and silver, goldsmiths blow the outermost zone of a flame towards the gold or silver using a metallic blow-pipe.
Can a goldsmith achieve a similar result if he / she blew the innermost zone of a flame towards the gold or silver? Give a reason for your answer.

Explanation

To answer the question of whether a goldsmith can achieve a similar result by blowing the innermost zone of a flame towards gold or silver, we need to analyze the characteristics of the different zones of a flame.

### Step-by-Step Solution:

1. **Understanding Flame Zones**: A flame has three distinct zones: the innermost zone (the inner cone), the middle zone (the outer cone), and the outermost zone (the outer envelope). Each zone has different temperatures and combustion characteristics.

2. **Temperature of Flame Zones**: The outermost zone of a flame is the hottest part. This is because it is where complete combustion occurs, which means that there is sufficient oxygen for the fuel to burn completely, producing maximum heat.

...