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A pet-raising simulation (sometimes called virtual pets or digital pets [1]) is a video game that focuses on the care, raising, breeding or exhibition of simulated animals. These games are software implementations of digital pets .
Space sim based on a trilogy of novels written by a famous Russian author, Alexander Zorich; game was originally released in Russia in 2006, however the new release suffered from a poor English translation [37] Virtual Impact: 2003 Erik Koenig VirtualImpactGames Windows Described as space combat sim plus sports match [38] Void Destroyer: 2015
Note that this value is much lower than the prediction of standard cosmic nucleosynthesis , so that stars and gas in galaxies and in galaxy groups and clusters account for less than 10% of the primordially synthesized baryons. This issue is known as the problem of the "missing baryons".
In the tables, z is the cosmological redshift, c the speed of light, and h the dimensionless Hubble parameter, which has a value of approximately 0.7 (the Hubble constant H 0 = h × 100 km s −1 Mpc −1). Mpc stands for megaparsec. The co-ordinates (right ascension and declination) and distance given refer to the approximate center of the region.
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Using the Planck units, and the value evaluated in 2025 for the Hubble constant H 0 = 76.5 ± 2.2 (km/s)/Mpc = (2.48 ± 0.07) × 10 −18 s −1 [18], Λ has the value of = = = where is the Planck length.A positive vacuum energy density resulting from a cosmological constant implies a negative pressure, and vice versa. If the energy density is ...
In cosmology, the cosmological constant problem or vacuum catastrophe is the substantial disagreement between the observed values of vacuum energy density (the small value of the cosmological constant) and the much larger theoretical value of zero-point energy suggested by quantum field theory.
The observed value of 4 He is within the range calculated. Still, it was not until the discovery of the Cosmic microwave background radiation (CMB) by Arno Penzias and Robert Wilson in 1965, that most cosmologists finally concluded that observations were best explained by the big bang model. Steady State theorists and other non-standard ...