Your last journal checks included a number of references to knowledge claims made in your science subjects and questions about the role of technology in determining what is knowable at certain points in history. Good work!
The above image is of a single drop of sea water. Here is a link to the article. You can't see this stuff with the naked eye.
Remember, new technology often plays a significant role in shifting current scientific thinking (theories). Methodology in the natural sciences requires that new information is continuously re-assessed. We call that Scientific Method. Brush up on it, folks.
How is methodology different in other Areas of Knowledge? On what grounds must we reconsider knowledge claims in other AoKs?