This complacency was blown to bits by the relativity of Einstein, the revelation of the complex anatomy of the atom and the discovery of the expanding universe.

First of all, and this has been calculated by observation, the universe is expanding -- that is, the galaxies are receding from each other at immense speeds.

If this is true, then the universe today looks just as it did millions of years ago and as it will look millions of years hence, even though the universe is expanding.

Also, the contents of an expanding universe ( to first order ) can be described as an adiabatically cooling fluid.

Given the cosmological principle, Hubble's law suggested that the universe was expanding.

As a result it remains controversial whether one can meaningfully say that total energy is conserved in an expanding universe.

The solution is an expanding universe ; due to this expansion the radiation and matter in the universe are cooled down and become diluted.

The future of the universe is not yet firmly known, but according to the ΛCDM model it will continue expanding forever.

In addition, general relativity is the basis of current cosmological models of a consistently expanding universe.

By 1929, however, the work of Hubble and others had shown that our universe is expanding.

The best-known exact solutions, and also those most interesting from a physics point of view, are the Schwarzschild solution, the Reissner – Nordström solution and the Kerr metric, each corresponding to a certain type of black hole in an otherwise empty universe, and the Friedmann – Lemaître – Robertson – Walker and de Sitter universes, each describing an expanding cosmos.

Among other things, Schroeder attempts to reconcile a six day creation as described in Genesis with the scientific evidence that the world is billions of years old using the idea that the perceived flow of time for a given event in an expanding universe varies with the observer ’ s perspective of that event.

On the largest scale, the universe is continually expanding, resulting in an average increase in the separation between individual galaxies ( see Hubble's law ).

There was thus no time for significant carbon to be formed in the few minutes after the Big Bang, before the early expanding universe cooled to the temperature and pressure point where helium fusion to carbon was no longer possible.

* Spacetime ( the fabric of the universe ) is actually expanding.

Suppose that the universe were not expanding, and always had the same stellar density ; then the temperature of the universe would continually increase as the stars put out more radiation.

So the sky is about fifty billion times darker than it would be if the universe were neither expanding nor too young to have reached equilibrium yet.

They are today considered strong evidence for an expanding universe and the Big Bang theory.

Emerging themes in the 1990s included environmental issues, the implications of the global Internet and the expanding information universe, questions about biotechnology and nanotechnology, as well as a post-Cold War interest in post-scarcity societies ; Neal Stephenson's The Diamond Age comprehensively explores these themes.

However, soon after Einstein developed his static theory, observations by Edwin Hubble indicated that the universe appears to be expanding ; this was consistent with a cosmological solution to the original general-relativity equations that had been found by the mathematician Friedmann.

The banks are generally smooth and gentle, expanding into wide plains on either side, then climbing into ever more jagged hills before leaping up into a sheerly impenetrable enclosing mountainous ridge, taller than the Himalayas.

In many jurisdictions, even ones such as the United Kingdom, where expanding ammunition is generally prohibited, it is illegal to hunt certain types of game with ammunition that does not expand.

These are used primarily for hunting and civilian antipersonnel use ; they are not generally used by the military, since the use of expanding bullets in international conflicts is prohibited by the Hague Convention and because these bullets have less chance of penetrating modern body armor.

Although Swedish-speaking culture had been expanding eastwards through the Åland islands and along what are now the coastal regions of Finland for several centuries, the Second Swedish Crusade, undertaken by Birger Jarl in the later 1240s, is generally taken as the moment when the region now called Finland was incorporated into the Swedish state.

The Great Egret is generally a very successful species with a large and expanding range.

Gods can generally only significantly increase their power by getting promoted or expanding their purview.

Its European range is generally expanding, although northern populations are especially susceptible to hard winters.

Golden-winged Warbler populations are slowly expanding northwards, but are generally declining across its range, most likely as a result of habitat loss and competition / interbreeding with the very closely related Blue-winged Warbler, Vermivora cyanoptera.

Herring fishing was expanding generally in Scotland at that time, with fishing stations being set up in remote areas.

Indeed, the ever expanding number of parameters at each order in 1 / M required for an effective field theory means that they are generally not renormalizable in the same sense as quantum electrodynamics which requires only the renormalization of three parameters.

The Barnburners opposed expanding the public debt, and the power of the large, state established, corporations ( the Barnburners were not opposed to large business enterprises due to their largeness-only ones established or subsidized by government ); they also generally came to oppose the extension of slavery.

Nevertheless, Kormos is generally regarded as an ally of the province's gay community, and has supported several bills expanding the range of same-sex benefits in the province.

These units generally were expanding and renovating existing stores.

Aside from the popular Santa Trains which have operated since 1985, out of season running ( generally between May and September ) was uncommon until 2009 when a number of experimental services were tested, expanding the running season somewhat.

From that point on it was generally accepted that the universe started in a hot, dense early state, and has been expanding over time.

It was also part of a strategy to deny the low-cost airlines generally and EasyJet in particular the physical space, in terms of airport slots, to continue expanding unabated in the Southeast.

In addition to construction of defensive walls and completion of the Great Ziggurat of Ur, Shulgi spent a great deal of time and resources in expanding, maintaining, and generally improving roads.

As with audiophiles, videophiles are generally criticised with being able to recognise differences that are usually imperceptible to most other people ; however, video has many more objective ways to measure quality ( though one's opinion over what is more favourable can vary ), expanding the range of debate substantially.

The blowback system is generally defined as an operating system in which energy to operate the firearm's various mechanisms and provide automation is derived from the movement of the spent cartridge case pushed out of the chamber by rapidly expanding powder gases.

After settling and establishing a headquarters in Shaanxi, He led guerrilla forces in Northwest China in both the Chinese Civil War and the Second Sino-Japanese War, and was generally successful in expanding areas of Communist control.

Lituites produced a shell with a planospirally coiled juvenile portion at the apex, reflective of its tarphycerid ancestry, followed by a long, moderately expanding, generally straight, orthoconic adult section with a subdorsal siphuncle connecting the chambers.

During that period the company was expanding to sustain commercial success generally and that of Skytrain in particular.

NYU is generally characterized as a program that pushed the definitions of theatrical practice influenced by the thearical avant-garde thus expanding its definition of what can be framed as an event.

The songs generally support the theme of the group quite well, expanding the band's concept to comic proportions and supporting the back story.