What is professor manley contribution to science?

There is no widely known or established scientist named "Professor Manley" with significant contributions to science that would be readily available in general knowledge databases or scientific literature. It's possible:

* The name is slightly different: There might be a slight variation in spelling or a middle initial.

* The professor is in a niche field: Their work might be highly specialized and not widely publicized.

* The name is incorrect: The name might be a misremembering or a fictional character.

To find information about a specific "Professor Manley's" contributions, you would need to provide more details, such as their university affiliation, area of expertise, or any publications they've authored.