A mathematical problem solved by Susanna Heikkilä relates to the classification of quasiregularly elliptic 4-manifolds, asking what four-dimensional shapes can be obtained by deforming four ...

Why is this happening? Take a look at the two lines at the equator — they look parallel. However, in elliptic geometry there are no parallel lines because all lines eventually intersect.

Elliptic geometry is more general than ordinary geometry. It refers to a three-dimensional space of a more general type than ordinary space. The ordinary mathematics supposes a more or less ...

Elliptical flat mirrors are used to fold and re-direct optical beams. Due to the elliptical geometry of the coated substrate, the aperture of a circular beam can be rotated by 45˚ around the minor ...

The elliptical "LOOP" table was designed by Alex Bellos and built by the Snooker & Pool Table Company in Essex, Britain, and has a single pocket placed right on one of the ellipse's focii.

One type of these non-Euclidean Geometries is called “Elliptical Geometry”, and might be imagined as the geometry that is appropriate on the round surface of the Earth. There it is possible for ...

We’ve all learned “parallel lines never intersect” in high school geometry. But what your teachers failed to explain is that “parallel lines never intersect” is only true in Euclidean ...

Using high school algebra and geometry, and knowing just one rational point on a circle or elliptic curve, we can locate infinitely many others.

Elliptical flat mirrors are used to fold and re-direct optical beams. Due to the elliptical geometry of the coated substrate, the aperture of a circular beam can be rotated by 45˚ around the minor ...