This is known as an "analemma", and of course is created by the Earth and Sun's relative motion. But it also has a lot to do with how we measure and keep time.

Just one equation relates the expansion of space to all the matter and energy we have. If you know this, you can know the fate of the Universe.

Learn how to calculate the equation of a line from a graph, ... Draw a triangle to show the horizontal and vertical change. The line slopes downwards, so the gradient is negative.

Bernoulli's equation along the streamline that begins far upstream of the tube and comes to rest in the mouth of the Pitot tube shows the Pitot tube measures the stagnation pressure in the flow.

Michio Kaku is a theoretical physicist who was inspired as a young child to search for the ‘theory of everything.’ Kaku co-founded the string field theory, which he believes may be the answer ...

Euler's Identity is a remarkable equation that comprises the five most important mathematical constants. ... and forms an angle of 36.9 degrees with the horizontal axis ...

The bottom part is a graph of the equation, which, as you can see, is exactly the same. To be fair, this equation cheats a little bit. You may notice that the y-axis of that graph begins at ‘k’.