A continuum is a range of things that change gradually. It has no distinct dividing points or lines but is quite different at its extremes. It can also be used to describe a series or range of things in one line or category.

The concept of the continuum is very important in mathematics, especially in the realm of set theory. It was first introduced by the famous mathematician David Hilbert in 1900, and is still the most challenging problem in set theory to solve.

Continuum theories or models explain variation as involving gradual quantitative transitions without abrupt changes or discontinuities. This is very different from the categorical theories or models which attempt to explain variation by using qualitatively different states.

In classical hydrodynamics the fluid continuum was proposed to absolve the particulate nature of matter from the complexities of atom micro-structure, and to allow for resolving properties at a macroscopic level. This is accomplished by defining a representative elementary volume (REV) as small as necessary to resolve spatial variations in the properties of the fluid but much larger than the scale of molecular action.

From this point on the fluid properties tend to a limit, at which a sharp cut-off filter is established and all activity below that level is suppressed. Continuum theories are very useful in understanding how matter moves on scales that are smaller than the individual particles, such as the atmosphere or the cell membrane.

It is often possible to view seed postharvest physiology in terms of the continuum, rather than trying to accurately categorize it. This approach may be more realistic than attempting precise classification, and is considered more appropriate for observational research in the general population.

There are many ways to define the continuum, but its most common meaning is a series or range of things that change gradually and have no clear dividing points or lines. This definition is also the basis of a number of physics experiments, including continuum mechanics and fluid flow.

The continuum hypothesis is the proposition that if you draw an infinite set of points on a line, then there will be a third infinity between them. This is a very interesting problem, and it was first put on Hilbert’s list of open problems in 1900.

Despite a lot of work and several attempts at proof, the continuum hypothesis was never proven to be true. It was the subject of an attempt in 1972, but this was a failure, and it was subsequently removed from the list.

A more general model was developed in 2000, by Jorg Brendle and Paul Larson. The new model uses a new technique called spectral analysis, which can be applied to any nontrivial set of real numbers.

In this method, the universe of sets is built up layer by layer. This allows for stratification of the universe and in particular for finer-grained stratification. However, there is a problem with this stratification. Specifically, there is a tendency for some structures to be more rich than others. This means that a structure which is rich enough to express the continuum hypothesis may not be so rich as other structures.