Artículos con la etiqueta ‘astrofísica’

Benford’s Law and the Universe

Por • 27 ene, 2014 • Category: Ciencia y tecnología

Benford’s law predicts the occurrence of the n th digit of numbers in datasets originating from various sources of the world, ranging from financial data to atomic spectra. It is intriguing that although many features of Benford’s law have been proven and analysed, it is still not fully mathematically understood. In this paper we investigate the distances of galaxies and stars by comparing the first, second and third significant digit probabilities with Benford’s predictions. It is found that the distances of galaxies follow reasonably well the first digit law and the star distances agree very well with the first, second and third significant digit.



Hanny’s Voorwerp and the Antikythera Mechanism – similarities, differences and insights

Por • 30 nov, 2012 • Category: sociologia

I present some insights into Hanny’s Voorwerp and the Antikythera mechanism – contrasting their similarities and differences. They are both excellent examples of serendipitous discoveries in which human curiosity and perseverance have played an important role. Both objects have captured the imagination of the general public, and their discovery was only made possible via the introduction of new technologies. One major difference is that there is only one Antikythera device but there are now many Voorwerpen or “voorwerpjes”, as they are more commonly known. The study of a collection of objects, as is common in astronomy, greatly aids our understanding of cosmic phenomena. In the case of the voorwepjes, we now know that such systems are to be identified with obscured galaxies or Active Galactic Nuclei (AGN) that appear to have recently and indeed rapidly turned off. Clearly, the discovery of more examples of devices similar to the Antikythera mechanism would have a significant affect in advancing our understanding of this object and the people that constructed it.



Why Astrophysicists Need A Light Bulb In Orbit

Por • 4 feb, 2011 • Category: Leyes

Astronomers measuring the most distant light sources need to know how much light the atmosphere absorbs. The answer is an orbiting light bulb



Artificial Life Shares Biosignature With Terrestrial Cousins

Por • 11 ene, 2011 • Category: Ambiente

Monomer Abundance Distribution Patterns as a Universal Biosignature: Examples from Terrestrial and Digital Life



Big Bang Abandoned in New Model of the Universe

Por • 31 dic, 2010 • Category: Leyes

A new cosmology successfully explains the accelerating expansion of the universe without dark energy; but only if the universe has no beginning and no end.