NASA pictures of earth doesn't seems oblate Spheroid. But I don't like conspiracy theories..so it must be a risnable explanation what is he?
- sparrowLv 71 month ago
Just because you can't see irregularities in the shape doesn't mean they're not there.
It's not perfectly round.
- D gLv 71 month ago
There is a way to visualize this ..
Draw a perfect circle 10 cm in diameter then put a bulge the width of the pencil circle and erase the inner circle mark then ask someone to visually tell if there is a bulge
Did you notice the math that it was about 70 km different from center to North so unless you have great eyesight you won't see it bulging
- Bulldog reduxLv 71 month ago
Sorry, but I never believe in risnable explanations.
- aladdinwaLv 71 month ago
Earth is an oblate spheroid.
Diameter through the poles: 12,714 kilometers
Diameter through the equator: 12,756 kilometers
That's a difference of only 42 kilometers out of more than 12,700 kilometers.
Percentage-wise that's a difference of (at most) 37 one-hundredths of 1 percent. Not enough of a difference for the naked eye to detect.
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- Ronald 7Lv 71 month ago
The Oblateness is not that Clear to the Normal Eye
But the Circumference around Both poles is a few percent less than that around the Equator
Which is a Menagerie Lion running around the Centre of the Earth at 0 Degrees Latitude
Playing the Accordion
- 1 month ago
Earth's about 20 miles thicker through the equator than through the poles. Earth's diameter is about 8000 miles, so it's about 0.25% thicker through the equator.... to put that into perspective, if you had an image of the Earth that was 8000 pixels across, it would be 20 pixels wider than tall - which isn't very much, and difficult to see.
- busterwasmycatLv 71 month ago
you can't tell the difference on the scale of a photo. We lack the ability to define differences on the order of parts per thousand at the scale of less than a meter (we can't see sub-millimeter differences with our eyes, basically, and that is the proportional difference between the long and short axis of the spheroid, on the order of a part per mil. Basically the width of a hair on a typical page-sized photo is the difference in radius between equator and pole. You have much better vision than most if you can see that.
- az_lenderLv 71 month ago
NASA pictures of earth look like a sphere, because the earth is ALMOST a sphere. The equatorial radius of the earth is only 10 miles longer than the polar radius. Naked eye is not going to notice that difference, when both radii are close to 4000 miles.
One way it becomes noticeable is that gravitation at sea level near the equator is about half a percent greater than at the poles.
- nineteenthlyLv 71 month ago
The difference in diameter pole to pole compared to across the equator is about 0.3%. It's unlikely you'd be able to perceive it.
- CliveLv 71 month ago
It's not VERY oblate. Of course you wouldn't notice it on a photo. Just like you wouldn't notice your house on a photo of the whole Earth - it's too small to see.