Why are pictures of Earth from NASA showing a perfect sphere . . . - Reddit So all the descriptions in the text on the linked graphic are are accurate, but what is critical here is the scale I'd suggest considering some basic details of the figure of the Earth, but let's break down each of these: Equatorial diameter slightly greater than polar diameter Earth is an oblate ellipsoid-slightly flattened Yes, these are both true and are a product of the fact that the
Spheroid people… how do you image your spheroids for confocal . . . - Reddit How big are your spheroids? I have had some success using long working distance objectives up to 20x plus z-stacking and could image about 100-200 um into the spheroid Anything deeper than that was a blurry central haze to an otherwise clear edge once you flatten the stack FWIW you could also look up some papers with nice spheroid images and contact the authors (ideally the first) for their
Clanner and Spheroid insults? : r battletech - Reddit Clanner and Spheroid insults? I was wondering if there were any in-universe insults or curse words for the sake of proper roleplay, I know in the 80’s cartoon Malthus calls people “Surats” but beyond that I’m not sure of any Any input would be appreciated
What does Neil DeGrasse Tyson mean when he says Earth is pear . . . - Reddit This is why the earth can be described as an oblate spheroid - although bear in mind theis image is hugely exaggerated Now, in reality if we measure the minimum radius at poles and the maximum radius at equator we find they each have values of 6,357 km and 6,378 km respectively So about the same magnitude as the surface roughness
What is the difference between a datum and a coordinate system . . . - Reddit A datum, as seen above, is a specific spheroid model linked to a best-fit for either a specific section of Earth (local datum) or the whole globe (global datum) When you view the Earth as a 3D model, you use a coordinate system that maps 3D spherical shapes Latitude and Longitude are spheroid in nature
Earth is said to be an oblate spheroid due to the rotation . . . - Reddit Earth is said to be an oblate spheroid due to the rotation pushing the equator out with centrifugal force Does that mean if the earth stopped rotating it would return to a sphere or has it solidified in it's oblate spheroid shape?
Are all planets spherical? : r askscience - Reddit Typically planets and stars are not perfectly spherical (neglecting topography such as mountain ranges) If you include the rotation in the calculation of hydrostatic equilibrium you obtain an oblate spheroid (squashed in the rotation axis), or more specifically to this problem it would be considered a Maclaurin spheroid
Difference between GRS80 and WGS84 : r Surveying - Reddit GRS80 is a geodetic reference system consisting of a global reference spheroid and gravity field model WGS84 is an Earth-centred, fixed terrestrial reference system and geodetic datum
No, Neil deGrasse Tyson Didnt Literally Say Earth is Pear . . . - Reddit As such, claiming Neil says Earth is shaped exactly like a pear instead of an oblate spheroid is just taking him completely out of context With the context given, it's easy to understand that he's referring to the difference in width of Earth