Mysteries on universe’s largest observable scales
نویسندگان
چکیده
منابع مشابه
Mysteries on Universe’s Largest Observable Scales
We review recent findings that the universe on its largest scales shows hints of the violation of statistical isotropy, in particular alignment with the geometry and direction of motion of the solar system, and missing power at scales greater than 60 degrees. We present the evidence, attempts to explain it using astrophysical, cosmological or instrumental mechanisms, and prospects for future un...
متن کاملThe largest scales of turbulent wall flows
The small scales of wall-bounded turbulent flows have received a lot of attention in recent years, especially in the near-wall region, in part because of the availability of direct numerical simulations that made their detailed study possible (Kim, Moin & Moser 1987). Since those simulations had necessarily moderate Reynolds numbers and little or no separation between their largest and smallest...
متن کاملCommentaries on viewpoint: unresolved mysteries.
TO THE EDITOR: Mysteries remain unresolved if the approach is misconceived. In this Viewpoint (3) alveoli are considered as structures sui generis—but they are not. Alveoli are rather air pockets within the ingenious architecture of a fiber continuum designed to expose capillary networks over a large surface to air refreshed from alveolar ducts (4). This fiber continuum spans from the periphera...
متن کاملTowards observable signatures of other bubble universes. II. Exact solutions for thin-wall bubble collisions
We assess the effects of a collision between two vacuum bubbles in the thin-wall limit. After describing the outcome of a generic collision possessing the expected hyperbolic symmetry, we focus on collisions experienced by a bubble containing positive vacuum energy, which could in principle contain our observable universe. We provide criteria governing whether the post-collision domain wall acc...
متن کاملNote on parallel universes
The parallel universes idea is an attempt to integrate several aspects of learning which share some common aspects. This is an interesting idea: if successful, insights could cross-fertilise, leading to advances in each area. The ‘multi-view’ perspective seems to us to have particular potential. We have investigated several aspects of this, including the following: 1 Adverse drug reactions One ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Astronomy Reviews
سال: 2006
ISSN: 1387-6473
DOI: 10.1016/j.newar.2006.09.013