5 Technologies Helping Us Explore The Deep Ocean

TL;DR

The ocean is a vast and dangerous ecosystem that covers over 70% of our planet. Despite its challenges, scientists have found ways to explore and uncover its mysteries using trimix gases, atmospheric diving suits, bathyscaphes, submarines, and remotely operated vehicles (ROVs).

Transcript

This episode was brought to you by Music for Scientists now available on all streaming services. [♩INTRO] The ocean covers over 70% of our planet, with an average water depth of 3500 meters, making it the largest ecosystem on Earth. It’s so huge, and so sparsely-explored, that it’s often referred to as inner space. There are several challenges to e... Read More

Key Insights

• 🫢 Trimix gases and atmospheric diving suits are used to overcome the dangers of exploring the deep ocean depths beyond recreational SCUBA limits.
• 🛟 Bathyscaphes were the earliest technology used to explore the deep ocean and enabled the discovery of life at extreme depths.
• 🤢 Submarines made of syntactic foam have revolutionized deep-sea exploration, leading to the discovery of hydrothermal vents and chemosynthetic ecosystems.

Questions & Answers

Q: Why do recreational SCUBA divers need to use trimix gases?

Recreational SCUBA divers need to use trimix gases because deeper dives result in increased water pressure, which can cause oxygen and nitrogen toxicity. Trimix gases reduce the concentration of these gases, preventing toxicity.

Q: How do atmospheric diving suits allow exploration at great depths?

Atmospheric diving suits are like wearable submersibles that allow individuals to interact with the environment underwater. They maintain atmospheric pressure and provide hours of air supply, eliminating the risks associated with SCUBA diving.

Q: Why were bathyscaphes no longer used for deep-sea exploration?

Bathyscaphes were no longer used due to the risk of gasoline tank rupture and water flooding, causing the vessel to sink to the bottom. However, they successfully reached the Challenger Deep and enabled the observation of life in the deepest ocean depths.

Q: What material are submarines made of to withstand immense pressure?

Submarines are made of syntactic foam, which consists of millions of hollow glass spheres suspended in an epoxy resin. This foam can withstand crushing pressures while providing buoyancy for the submarine to float back to the surface.

Summary & Key Takeaways

• Recreational SCUBA divers must use trimix gases to prevent oxygen and nitrogen toxicity while exploring deeper than 40 meters.

• Atmospheric diving suits allow humans to explore deep ocean depths without the risks associated with SCUBA diving.

• Bathyscaphes, although no longer in use, were the first vehicles to reach the deepest spot on Earth's ocean floor, known as the Challenger Deep.

• Submarines made of syntactic foam enable humans to visit great depths and have revolutionized our understanding of the deep sea environment.

• ROVs, remote-operated vehicles, provide researchers with extended exploration capabilities, capturing detailed footage and allowing livestreams of the deep ocean.