Are the words interesting and interested different

Yes.

https://www.dictionary.com/browse/interesting?s=t

https://www.dictionary.com/browse/interested?s=t

Are they different or are they related

Did you read the definitions? They are different.

One has an inward aspect; the other has an outward aspect.

Yes, the words "interesting" and "interested" are different in meaning and usage.

- "Interesting" is an adjective that describes something as being appealing, engaging, or worth attention. For example, you could say "That book is interesting" or "I find science fiction movies interesting."

- "Interested" is also an adjective, but it describes a person's state of being intrigued or showing curiosity in a particular subject or activity. For example, you could say "I am interested in learning about history" or "She is not interested in playing sports."

To understand the difference between these two words, it's important to grasp their grammatical functions and how they are used in sentences.