I dove in a NUCLEAR SUBMARINE (Frozen Ocean) | Summary and Q&A

October 24, 2022
Physics Girl
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I dove in a NUCLEAR SUBMARINE (Frozen Ocean)


Physicist Diana goes on a dangerous dive in a nuclear-powered submarine under Arctic sea ice, experiencing the challenges and risks faced by submariners.

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Key Insights

  • 🤢 Submarine dives beneath Arctic sea ice are rare and pose unique challenges.
  • 😒 Submarines control their buoyancy through the use of ballast tanks and compressed air.
  • 🎁 The Arctic environment presents additional risks and complications during underwater operations.
  • 🤿 Maintaining control and precision is crucial for safe submarine diving.
  • 🥶 Resurfacing in the Arctic requires careful navigation through the solid ice.
  • 💱 Unpredictable buoyancy changes due to temperature and salinity differences can affect submarine operations.
  • 🦺 Maintaining communication and coordination in extreme environments is essential for safety.


the engine room is standing by main engines are warm we were surrounded by sea ice it was minus 15 degrees outside we were packed in the control room about to do a dive that submariners rarely do straight down and the Navy's nuclear power submarine I found myself on started tilting if that tilt angle got too steep you'd risk a situation that is muc... Read More

Questions & Answers

Q: What were the main challenges faced during the submarine dive under Arctic sea ice?

One of the main challenges was the stationary dive, which was more dangerous and difficult than a normal dive. Additionally, the presence of sea ice required extra control and maneuvering to avoid collisions.

Q: How do submarines work and control their buoyancy?

Submarines control their buoyancy by flooding compartments called ballast tanks to sink and using compressed air to surface. The main ballast tank runs along the entire length of the submarine, while trim tanks provide more precise control.

Q: What caused the submarine to weigh more than expected during resurfacing?

The submarine's buoyancy changed due to a combination of temperature and salinity differences between the surface and underwater, causing it to weigh 50,000 pounds more than anticipated.

Q: Why did the military personnel yell at Diana as she disembarked from the submarine?

The ice scraping against the hull caused the exit plank to become unstable and potentially fall into the ocean. Diana was rushed off the sub to ensure her safety.

Summary & Key Takeaways

  • Diana goes on a unique submarine dive underneath Arctic sea ice, which is rarely done due to its difficulty and risks.

  • She learns about the operation and mechanics of submarines, including the control of buoyancy using ballast tanks and the challenges faced in the Arctic.

  • Diana shares her experience of diving and sleeping on the submarine, highlighting the extreme environment and the precision required for safe operation.

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