Physics news

Is our universe in the interior of a giant black hole?

This is another post from Casey Kazan at 27th Sept ... a paper available at 'Cosmology in Torsion - an Alternative to Cosmic Inflation' by Nikodem Poplawski, who claims that a small change to the theory of gravity might imply our universe has inherited its arrow of time from the black hole in which it was born. Black holes are the cosmic mothers of new universes is a natural progression from a new and simple assumption about the nature of space time.

Einstein and Gravity

At Sept 24th ... there is a post on General Relativity and Einstein which is a favourite theme of Nigel Calder. In the current issue of Science magazine James Chin-Wen Chou et al detected the well known effects of relativity on the rate of time passing  and at the scale of ordinary human activities. Chou's team used laser light in a pair of aluminium-27 optical clocks to show that time can pass more slowly via the effect of motion on time.

An older universe?

At September 20th Casey Kazan stirs the pot by asking, could the universe be older than cosmologists think? More powerful telescopes are upsetting the standard textbook theories - there are seeming contradictions. On of them is the discoveryof a large elliptical galaxy that is very distant and dated, by rred shift analysis, to something like 10 billion years ago.

Have they found something ... or not

At ... the official position is that the Large Hadron Collider has found something - but they are a bit shy on saying what it might be. However, the intepretation of what was found was vigorously challenged  during the meeting as scientists bounced suggestions off each other - so who knows?

Parallel universes and the Black Widow

Is gravity from a parallel universe creating dark energy? Casey Kazan at has a different slant on a story that emerged a few weeks ago - the idea of gravity leaking from a parallel universe. The commenters at the end of what is a short piece are not impressed. Ivar Nielson of Denmark in particular.

Jupiter's radio emissions and dark energy?

An interesting post by Casey Kazan who continues to rattle the cage at and posted on August 31st 'Do Jupiter's radio emissions hint that dark energy may not exist?' ... the cosmic microwave background as tracked by the WMAP satellite shows a pattern of ripples that underpin the idea the universe is composed of dark matter and dark energy. Researchers at Durham Univesity think they have found a flaw in the data - starting with WMAP observations of the planet Jupiter.

sun spots ... can stretch the sky ...

New Scientist August 27th ... sun spots may play a role in small fluctuations in the time it takes the earth to rotate on it's axis. The exact length of the day varies - tides and winds also affect the rotation but now it seems so do sun spots. It is suitably dressed up in uniformitarian glamour wear as they are talking about fractions of a second, supposedly as a result of an abundance of sun spots - or the lack thereof. The question thus might be asked - what hails in the result of a very large solar flare?

The birth of black holes

At ... a paper in Nature purports to have discovered the origin of the universe's first super massive black hole - by computer simulation of dark matter, stars, gas, and black holes. They were born when early galaxies collided and fused together - quite simple really. However, it is not quite simply simple as it means the old hypothesis that gravity draws small pieces of matter together and these then go on to form large structures is - well, redundant.

Neutrinos and decay rates - ongoing

At --- which is the story that broke a few days ago concerning research that seemed to show a variation in radioactive decay rates on earth - is being reopened after a cascade of criticism. The real shocker is they attributed it to solar neutrinos - and they aren't supposed to react with matter and ar particularly difficult to detect. In fact, they might even not exist.

Magnetic Monopoles

At the io9 website ( ) there is a feature, ask the scientist. In this instance, it is Physicist David Sparks who poses as teacher and knowledge bringer, and the question asked is, what happened to magnetic monopoles? Are they still out there in space?