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Discuss the development of scientific instruments in the 20ᵗʰ century used to map the seafloor. Include in your answer the timeframe when each instrument was developed and a brief description of how it works.
Critical Event
an important occurrence that has a significant impact on an individual, group, or system, often used as a focal point in research or analysis.
Research Entity
An organization, structure, or individual involved in the execution, funding, or facilitation of scholarly investigations.
Longitudinal Case Study
A study that follows the same subjects over a period of time, observing developments or changes in relation to a specific phenomenon.
Time Points
Specific moments or periods at which measurements or observations are taken during a study, allowing for the analysis of changes or outcomes over time.
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