**Step-by-Step Solution:**
1. **Definition of Carbogen**: Carbogen is a specific gas mixture composed of 95% oxygen (O2) and 5% carbon dioxide (CO2).
2. **Discovery**: The gas mixture known as Carbogen was discovered by a scientist named Ladisal's Meduna.
3. **Alternative Name**: Due to its discovery, Carbogen is also referred to as the "Meduna Mixer."
...
