Would a Submarine Work as a Spaceship?

xkcd's What If?

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**Would a Submarine Work as a Spaceship? Unveiling the Science Behind the Question**

In the vast realm of space exploration, the idea of repurposing a nuclear submarine for interstellar travel sparks curiosity and intrigue. The video titled 'Would a Submarine Work as a Spaceship?' delves into this intriguing concept, breaking down the technical challenges and limitations that would come into play if a submarine were to venture beyond Earth's atmosphere.

The video, prompted by a question from Jason, first addresses the structural integrity of a nuclear submarine and its potential to withstand the extreme conditions of space. Contrary to initial assumptions, the hull of a submarine is indeed robust enough to contain internal pressure, making it theoretically viable for space travel. However, while submarines are adept at managing carbon dioxide levels through scrubbers, the lack of water in space poses a critical challenge in oxygen production, ultimately limiting the sustainability of air supply in prolonged space missions.

One of the most pressing issues highlighted in the video is the overheating dilemma that a submarine would face in the vacuum of space. The contrast in temperature dynamics between the ocean and space underscores the potential risks of heat accumulation within a submarine's nuclear reactor, ultimately leading to a catastrophic meltdown scenario. The lack of a cooling mechanism akin to seawater in space would exacerbate this thermal challenge, rendering the submarine unsuitable for extended space missions.

Furthermore, the video discusses the logistical hurdles related to maneuvering a submarine out of orbit. Without a practical means of deceleration and propulsion, the submarine would lack the essential tools required to navigate through the complexities of space travel. While the mention of ballistic missiles as a potential solution provides a glimmer of hope, the video emphasizes the monumental obstacles that would hinder a successful escape from orbit using this unconventional method.

Ultimately, the video concludes that the notion of utilizing a submarine as a spaceship is not only infeasible but also perilous. The unforgiving nature of space conditions, coupled with the inherent design limitations of a submarine, accentuates the stark realities of attempting such a venture. The vivid imagery of a submarine hurtling towards Earth's atmosphere, plagued by overheating and structural instability, paints a vivid picture of the impracticality of this ambitious concept.

In the realm of science and technology, where innovation and exploration intersect, the hypothetical scenario of a submarine as a spaceship serves as a thought-provoking exercise in understanding the intricate dynamics of space travel. While the allure of repurposing existing technology for unconventional purposes is enticing, the video serves as a cautionary tale, underscoring the unforgiving realities that govern the vast expanse of outer space

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