The new MLP movie looks nice. It also contains math in a scene:

Analysis of the Fancy Mathematics

Main Analysis

ϕ of sun = -(h of sun * δ of moon)/θ of sun

Bonus Analysis

denotes the family of planes orthogonal to

, where

are the

of the

vectors.

Unrecognizable Notes

On the left, it shows the apparent angle of a distant sphere, which can be any sphere, such as the sun, the moon, or a planet.The two pictures at the top make up an explanation of aurora: "magnetic field of earth produces aurora". It's the clearest picture in the whole board. Not much to say about it.To learn more, check this video The circle in the center is a Horizontal Coordinate System centered on the stage in Canterlot.The two angles labelled on the graph are the Solar Elevation and Lunar Elevation. Basically, Solar Elevation is the altitude of the sun when it passes the meridian, that is, when it passes the north-south line in the sky, that is, at the moment of high noon. Similarly for Lunar Elevation.From the graph we can infer the latitude of the stage. The solar elevation is 28.1°N. Assuming Equestria has a similar obliquity of the ecliptic as this earth, around 23.5°, then that meansThe more significant point is that the moon at meridian makes a 89.9° angle with the sun., as shown in this graph.As can be seen, the orbit plane of the moon makes an angle of 5.14° with the ecliptic, that implies that "the moon at meridian, compared with the sun at meridian, makes an angle that's at most 5.14°". As you can see, there's a great difference between Equestria's astronomy and earth's astronomy.Technically, 5.14° is the "mean lunar orbit inclination", it actually varies between 5.0° to 5.3°, but it makes little difference. See this plot:Finally, there is a weird formula on the left side that seems to say thatThis seems to have no meaning. Usually, in physics, especially in astronomy, ϕ, δ and θ denote unitless quantities, or angles, and h denotes height. So the left side is unitless, but the right side has unit of length, there's a mismatch! So I think this formula has no meaning.There are some other pieces scattered around the board, seemingly irrelevant to the aurora or each other at all.The big equation in the left up corner is probably a decoration, unless you can figure out how to integrate cupcakes, apples, hearts, etc. Also, it looks like an integral, but there's noin it... Where's theThe equation in the right up corner is interplanar spacing of hexagonal crystal. It is a formula for calculating the distance between families of parallel crystal planes in a hexagonal crystal . There is a family of hexagonal crystals. Within this family, there is a continuum of shapes that is determined by the length/width/etc of a unit cell, and they areand. Within a crystal lattice, the crystal atoms make up parallel families of lattice planes. Each parallel family can be specified using something called " Miller index ", and they are, and. They are usually written together as, andThe way the hexagonal crystal is drawn, though, looks more like trihexagonal tiling , which is a tiling of the plane using triangles and hexagons.L = nλ / 2, in the left down corner, is the formula for standing waves on a string (or a 1 dimensional medium in general), where L is the length of the string, λ is wavelength, and n is a positive integer denoting the wavenumber.Here's a demo . The wavenumber is 1 + (the number of "nodes" in the string)There's the golden ratio up in left corner, seemingly accompanied by a golden spiral . Or maybe just a generic logarithmic spiral? I sure hope it's not just an Archimedean Spiral, ha ha ha In the right down corner, there's Time Dependent Schrödinger Equation (for a nonrelativistic particle). Unfortunately there's no way to explain it without some college mathematics, but here's a video explaining the equation with math and some cool animations.The cube is just a cube. It has nothing to do with Schrödinger's Equation, despite the arrow pointing at it.There are some sticky notes all around the board, too small to read. I attempted reconstruction, but they are not conclusive, so I don't attempt to explain what they might be.Featured on Equestria Daily