I.D. Novikov: New analytic models of ”traversable” wormholes

Abstract

The analytic solution of the general relativity equations for spherically symmetricwormholes are given. We investigate the special case of a ”traversable” wormhole i.e., oneallowing the signal to pass through it. The energy-momentum tensor of wormhole matteris represented as a superposition of a spherically symmetric magnetic field and dust matterwith negative matter density. The dynamics of the model are investigated. We discussboth the solution of the equation with a Λ-term and without it. Superposing enough dustmatter, a magnetic field, and a Λ-term can produce a static solution, which turns out tobe a spherical Multiverse model with an infinite number of wormholes connected sphericaluniverses. Corresponding solution can be static and dynamic.

A.A. Vasiliev: History of the Byzantine empire

The cultural and religious crisis through which the Roman Empire was passing in thefourth century is one of the most significant events in the history of the world. The oldpagan culture came into collision with Christianity, which received official recognitionduring the reign of Constantine at the beginning of the fourth century and wasdeclared the dominant State religion by Theodosius the Great at the end of that samecentury. It might have seemed at first that these two clashing elements, representingtwo diametrically opposed points of view, would never find a basis for mutualagreement. But Christianity and pagan Hellenism did intermix gradually to form aChristian-Greco-Eastern culture subsequently known as Byzantine. Its center was thenew capital of the Roman Empire, Constantinople.

Мимо Земли пролетел астероид размером с небоскреб

В случае столкновения с Землей он мог уничтожить целый город

В ночь на воскресенье, 10 марта, около 00.30 мск мимо Земли пронесся астероид, который ученые NASA сравнили по размерам с небоскребом. Небесное тело, получившее название 2013ET, пролетело в 950 тысячах километров от Земли: это примерно два с половиной расстояния до Луны. Его скорость была 42 тысячи километров в час.

Men among prediluvian Beasts

“No subject has lately excited more curiosity and general interest among geologists and the public than the question of the Antiquity of the Human Race…[]” Lyell 1863

The debate over the age of the earth generated an even more intriguing question: how old is humankind? Written records date back some thousands of years, but geological evidence and the fossil record show us that earth must be millions of years old. Some authors tried to reconcile this discrepancy by assuming a succession of worlds, each destroyed by a global catastrophe. Therefore the “age or reptiles” could be very ancient, the ice age mammals more recent and the final catastrophe, creating the human world, happened probably only some thousands of years ago. This succession of worlds seemed to be in accordance both with the geological record as with the biblical chronology.

Was the story of Noah's Ark true? Archaeologist who found the Titanic claims Biblical flood DID happen 12,000 years ago

• Acclaimed oceanographer Robert Ballard says he has found evidence
• Claims massive flood happened in Black Sea region around 5600BC
• Waters cascaded down Turkey's Straits of Bospurus and into sea
• It is believed to have started story of Noah, which was then passed on

A flood of Biblical proportions just like in the story of Noah's Ark may have actually happened, according to the oceanographer who found the Titanic.

Acclaimed underwater archaeologist Robert Ballard claims his team of researchers have uncovered evidence that suggests The Great Flood described in the Bible was actually based on real events.

Potopul lui Noe - mit sau realitate

INTRODUCERE

„Domnul a zis lui Noe: ‚Intra in corabie, tu si toata casa ta; caci dupa sapte zile voi face sa ploaua pe pamant patruzeci de zile si patruzeci de nopti; si voi sterge astfel de pe fata pamantului toate fapturile pe care le-am facut.’ Dupa cele sapte zile, au venit apele potopului pe pamant” (Fac. 7, 1-4-10).

Российские учёные погрузились в соцсети

Как узнать, о чём думают пользователи социальных сетей? Какие темы обсуждает блогосфера, с какой скоростью по ней расходятся слухи, как выявить очаги распространения новостей и предсказать реакцию людей на то или иное событие? Портал «Социодинамика», разработанный сотрудниками Института наукоёмких компьютерных технологий НИУ ИТМО, даёт исследователям инструмент для поиска ответов на эти вопросы.

К Северному полушарию приблизилась яркая комета

Любители звездного неба могут насладиться редким зрелищем: с 8 марта в ночном небе над Северным полушарием можно увидеть яркую комету.

Сначала небесное тело C/2011 L4 Pan-Starrs будет видно лишь в телескоп или бинокль.

Россияне теряют интерес к науке

По данным ВЦИОМ, наукой сегодня интересуются несколько меньше, чем раньше. Самые популярные области знаний – медицина и техника.

Всероссийский центр изучения общественного мнения (ВЦИОМ) опубликовал данные о том, интересуются ли россияне наукой, какие открытия им наиболее интересны, а какие ученые – наиболее известны.

Provocările din cosmologie, la Trinitas TV

Am descoperit cu plăcută surprindere o emisiune difuzată de Trinitas TV, televiziunea Patriarhiei Române, un dialog pe teme inclusiv ştiinţifice. Vă invităm să urmăriţi în continuare o discuţie pe teme de cosmologie între diacon Sorin Mihalache şi fizician Andrei Dorobanţu.

Faptul că dialogul de mai jos, difuzat - lucru aparent paradoxal - de Trinitas TV, este un exemplu rarisim de discuţie televizată pe teme ştiinţifice, spune multe despre atenţia ori, mai bine zis, despre lipsa totală de interes de care se "bucură" popularizarea ştiinţei în mass-media vizuală autohtonă în prezent.