Citat:
Ursprungligen postat av
Fleuch
Det finns en hake med klotformad jord faktiskt. Eller finns några stycken kanske men främst en som jag bruka beskriva så här: nästa gång du äter soppa, vänd först upp och ned på sopptallriken, häll sedan upp.
Det kommer att belysa problemet.
Modern etablerad vetenskap har faktiskt ingen förklaring. Utan måste fortfarande räknas som ett totalt mysterium.
Det är inget mysterium. Ta ut tallriken i rymden där jordens gravitation inte påverkar då kommer soppa stanna på tallriken undersida.
Vattnet på jorden är ett så tunnt lager att på en jordglob skulle det motsvara tjockleken på ett tunt papper.
I rymden utan nån större påverkan av nära himlakroppar skulle du kunna spraya en boll med vatten och det skulle stanna kvar.
Precis som vattnet stannar på jorden.
Från Grok
Citat:
I’m glad you liked the surreal transformations! Now, let’s tackle your question about the average depth of the oceans on a typical home globe.
The average depth of the oceans is about 3,800 meters, as you mentioned. A typical home globe has a diameter of around 30 to 40 cm, which you’ve estimated. Let’s break this down step by step to figure out how that ocean depth would scale on such a globe.
Step 1: Understand the real Earth’s dimensions
The Earth’s diameter at the equator is approximately 12,742 kilometers (or 12,742,000 meters). The average ocean depth of 3,800 meters is a tiny fraction of this.
Step 2: Set up the scale of the globe
Let’s take the average diameter of your globe as 35 cm (midpoint between 30 and 40 cm) for simplicity. Convert this to meters for consistency:
35 cm = 0.35 meters.
The real Earth’s diameter is 12,742,000 meters. So, the scale of the globe is the ratio of the globe’s diameter to the Earth’s diameter:
\text{Scale} = \frac{\text{Globe diameter}}{\text{Earth diameter}} = \frac{0.35}{12,742,000}
\text{Scale} \approx 2.746 \times 10^{-8}
This means 1 meter on the real Earth corresponds to about
2.746 \times 10^{-8}
meters (or 0.00002746 meters) on the globe.
Step 3: Scale the ocean depth
Now, apply this scale to the average ocean depth of 3,800 meters:
\text{Depth on globe} = 3,800 \times 2.746 \times 10^{-8}
\text{Depth on globe} \approx 0.00010435 \, \text{meters}
Convert this to millimeters (since 1 meter = 1,000 millimeters):
0.00010435 \times 1,000 = 0.10435 \, \text{millimeters}
Step 4: Interpret the result
So, the average ocean depth of 3,800 meters would be about 0.104 millimeters on a 35 cm diameter globe. That’s incredibly tiny—about the thickness of a single sheet of standard printer paper (which is typically around 0.1 mm thick).
Step 5: Consider the range of globe sizes
Since you mentioned the globe might be 30 to 40 cm in diameter, let’s check the range:
For a 30 cm globe:
\text{Scale} = \frac{0.30}{12,742,000} \approx 2.354 \times 10^{-8}
\text{Depth on globe} = 3,800 \times 2.354 \times 10^{-8} \approx 0.00008945 \, \text{meters} = 0.08945 \, \text{mm}
For a 40 cm globe:
\text{Scale} = \frac{0.40}{12,742,000} \approx 3.139 \times 10^{-8}
\text{Depth on globe} = 3,800 \times 3.139 \times 10^{-8} \approx 0.00011928 \, \text{meters} = 0.11928 \, \text{mm}
So, the scaled ocean depth ranges from about 0.089 mm to 0.119 mm depending on the globe’s size.
Final Answer
On a typical home globe (30 to 40 cm in diameter), the average ocean depth of 3,800 meters would scale down to roughly 0.09 to 0.12 millimeters—a fraction of a millimeter, barely perceptible to the naked eye. Globes often exaggerate features like mountains and depths for visual effect, but at true scale, the oceans would be an almost imperceptible dip on the surface.
Does that answer your question? If you’d like to explore more about globes, scales, or even a surreal depiction of the oceans on a globe, let me know!
