
How to Make a Spherical Map 
by Al Velella in Hobbies, Games & Toys 

Spherical maps, also referred to as globes, can display landforms visually
in a more accurate way. If you are teaching students about cartography or
world geography, it can be helpful to provide your students with a handson
project making a spherical globe out of craft materials. Students can paint
landforms onto the globe to show how the Earth appears in its natural form,
as opposed to a flat, l


Uses of Spherical Mirrors 
by Simon Capewell in Home & Garden 

Spherical mirrors, sometimes called convex or fisheye mirrors, bend
outward over a rounded surface. They come in a variety of shapes and sizes,
and they are shaped either as partial sections of the sphere or as a whole
ball. The spherical mirror at Bristol's Millennium Square is a famous
example of a giant reflective sphere. Beyond artistic pieces, the spherical
mirror is a helpful device found i

Uses of Spherical Magnets 
by soonk in Hobbies, Games & Toys 

Spherical magnets are like other magnets in structure. They have a north
and a south pole and are attracted to iron, cobalt, nickel and other
ferromagnetic materials, as well as other magnets. Their spherical shape,
however, lends them to some special uses that other magnets aren't designed
for. Magnet BraceletSpherical magnets can form a long chain, with the
negative pole of each magnet attrac

Definition of Spherical Geometry 
by kodeninja in Hobbies, Games & Toys 

In mathematics, spherical geometry is the study of lines, angles and shapes
on a spherical surface. Spherical geometry differs from the more familiar
plane or Euclidean geometry in several important ways, mostly having to do
with the behavior of lines and angles. Spherical geometry has a wide range
of realworld applications, particularly in mapping the surface of the
Earth and other planets. E

Spherical Harmonic Functions 
by afds in Hobbies, Games & Toys 

Spherical harmonics are solutions to a few of the partial differential
equations used in physics, such as the Laplace, Helmholtz and Schrodinger
equations, in which spherical coordinates are used. Spherical coordinates
describe the coordinates on a sphere. The general procedure is to rewrite
the partial differential equation as two equations, where one is a function
of the radial component and the

How to Calculate Spherical Trigonometry 
by cynix in Education 

Spherical trigonometry is a area of geometry that deals with the triangles
on the surface of a sphere. This branch of trigonometry developed in the
early eighth century and has been used in navigation, stellar mapping,
making geographic maps and improving sundials.Difficulty:Moderately
ChallengingInstructions Things You'll Need Calculator with
trigonometry functions The

How to Calculate Spherical Harmonics 
by The Merg in Hobbies, Games & Toys 

The spherical harmonics are a set of orthogonal functions useful as "basis
functions." Any wellbehaved function can be expressed as the sum of a
series of basis functions. The spherical harmonics are analogous to the
Fourier series, except the spherical harmonics form an appropriate basis
set for situations with spherical symmetry. One important example: the
motion of electrons about atomic nucle

How to Make Spherical Bearings 
by Master843 in Careers & Job Searching 

Ball bearings are small balls of metal that are extensively used within
millions of everyday applications. The ball bearing forming is a very
precise process, as the final products often need to be identical,
sometimes within up to 30 millionths of an inch. Some common applications
for ball bearings include cars, planes and
microwaves.Difficulty:ModerateInstructions Things You'll Need Metal

How to Solve the PZS Spherical Triangle 
by Radeon962 in Hobbies, Games & Toys 

The PZS spherical triangle is a special figure found in spherical
trigonometry. This triangle is based on the plane of a celestial sphere and
has three different vertices: the pole, known as P, the zenith of the
observer, also known as Z, and the star that is observed, denoted as S.
"Solving" a PZS triangle requires calculating all of the sides
and angles of the triangle. In order to do

How to Make a Spherical Ottoman 
by fayoh in Home & Garden 

Ottomans can serve as footrests or even as formal coffee tables. To add a
playful accent to a room, you can make a spherical ottoman that matches or
complements your other furniture’s upholstery. You won’t be
able to set a tray of coffee on it, but you can rest your feet on it or use
it as an extra seat. If you place against a wall or couch, you can use it
as a backrest when you sit on

