I belive it was dropping a small stone tied to a Very long string and seeing how much it went down, then it would be that deep, (if the rock dropped 3 feet it is 3 feet deep there)
Mapping the Ocean Floor with Echo Sounding is the key method scientists use to map the seafloor today
I think that Henry Hess invented echo-sounding devices for mapping the ocean floor. But I am not 100% sure that is the correct answer. LOL <3
Yes, that is true. Scientists began using radar on moving ships to map large areas of the ocean floor in detail during the 1940s and 1950s. This method, known as swath mapping, allowed for more accurate and comprehensive mapping of the ocean floor compared to previous techniques.
minisubmarines
no
A bicycle is not a technology that helps us know what the ocean floor is like. Sonar, bathymetry, and remote-operated vehicles are technologies commonly used for mapping the ocean floor.
Sonar technology is commonly used to see the ocean floor. It works by emitting sound waves that bounce off the seafloor and are then detected to create a detailed image of the underwater terrain. This technology has been crucial in mapping the ocean floor and understanding marine ecosystems.
The ocean floor topography includes features like mid-ocean ridges, trenches, abyssal plains, seamounts, and continental shelves. These features are shaped by processes such as plate tectonics, volcanic activity, and erosion. Mapping the ocean floor is crucial for understanding marine ecosystems, climate patterns, and natural hazards.
The Challenger expedition, led by the HMS Challenger, was the first scientific mission dedicated to mapping the ocean floor. It took place from 1872 to 1876 and collected crucial data about the ocean's depths, temperatures, and marine life.
Scientists use indirect methods to study the ocean floor because it is difficult to access and explore due to its depth and vastness. Indirect methods, such as sonar mapping and satellite imagery, provide valuable information about the seafloor topography and geology without the need for direct physical exploration.
HMS Challenger used echo soundings, which involved sending sound waves to the ocean floor and recording the time it took for them to bounce back, to map the ocean floor. This method helped create the first global maps of ocean depths.
Mapping of magnetic anomalies on the ocean floor shows alternating bands of normal and reversed polarity, indicating that new oceanic crust is continuously forming at mid-ocean ridges and spreading away in opposite directions.