Roger Bacon who was a philosopher was also a/an -

♦ Roger Bacon:
- তিনি ছিলেন একজন philosopher, educational reformer এবং scientist.
- He was the first European to describe in detail the process of making gunpowder.
- He proposed flying machines and motorized ships and carriages.

• Notable works:
- Compendium Philosophiae,
- Opus majus.

Source: Britannica.