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Below is a fun back‐of‐the‐envelope way to see just **how absurdly dense** that “reef‐blower water” would have to be if SpongeBob really did vacuum up the entire ocean into a beach‐ball‐sized container.

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### 1.  Mass of Earth’s Oceans

Earth’s oceans contain roughly \(1.35\times10^{18}\) m³ of water.  Since water is about 1000 kg per cubic meter, that’s about

\[
\underbrace{1.35 \times 10^{18}\,\text{m}^3}_{\text{volume}}
\;\times\;
\underbrace{1000\,\tfrac{\text{kg}}{\text{m}^3}}_{\text{density}}
\;=\;
1.35\times 10^{21}\,\text{kg}
\]
of water in total.

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### 2.  Volume of SpongeBob’s Reef Blower

From the cartoon still, the blower looks roughly the size of a large beach ball—say about **0.1 m³** of interior volume (that’s on the order of a 50–100 liter sphere).

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### 3.  Compute the “Condensed” Density

If all \(1.35\times10^{21}\) kg of ocean water got crammed into **0.1 m³**, then the density inside would be

\[
\frac{1.35\times10^{21}\,\text{kg}}
     {0.1\,\text{m}^3}
\;=\;
1.35\times 10^{22}\,\text{kg/m}^3.
\]

For comparison:

- **Normal liquid water**: \(1\times10^3\)\,kg/m³  
- **Lead**: \(\sim11\times10^3\)\,kg/m³  
- **Neutron star matter**: around \(10^{17}\)–\(10^{18}\)\,kg/m³ in the outer regions

So the reef‐blower water, at \(\mathbf{10^{22}}\) kg/m³, would be a **thousand times denser than a neutron star’s crust**—a playful way of saying it’s “cartoonishly impossible” in real physics.

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### Bottom Line

In true SpongeBob fashion, the show’s gag implies compressing an entire ocean into a tiny sphere at literally **astrophysical** densities. It’s just a fun cartoon moment, not something that could happen in real life!

Sat, 11 Jan 2025 02:57 GMT