Saturday 14 December 2013

Physics breakthrough: Is the universe a giant hologram?

Scientists have found the “clearest evidence yet” that the universe we inhabit is a giant hologram, paving the way towards reconciling one of physics’ most pressing issues: the relationship between Einstein’s theory of relativity and quantum physics.
In other words, we could be living inside a giant 3D projection of what is actually a two-dimensional space, similar to an IMAX movie theater screen or a painting. Or one could simply imagine the experience of looking at a three-dimensional object from various angles and seeing it change shape according to the point of observation.
The new experimental simulations proposed by Japanese scientist, Yoshifumi Hyakutake, and his team at the Ibaraki University of Japan tackle the varying energies of black holes discovered in parallel universes. But it also goes a long way towards marrying Einstein’s theory of general relativity and the theory of quantum mechanics as the two main theories describing our universe.
The findings were published in the journal, Nature, on December 10.
Scientists have found the “clearest evidence yet” that the universe we inhabit is a giant hologram, paving the way towards reconciling one of physics’ most pressing issues: the relationship between Einstein’s theory of relativity and quantum physics.
In other words, we could be living inside a giant 3D projection of what is actually a two-dimensional space, similar to an IMAX movie theater screen or a painting. Or one could simply imagine the experience of looking at a three-dimensional object from various angles and seeing it change shape according to the point of observation.
The new experimental simulations proposed by Japanese scientist, Yoshifumi Hyakutake, and his team at the Ibaraki University of Japan tackle the varying energies of black holes discovered in parallel universes. But it also goes a long way towards marrying Einstein’s theory of general relativity and the theory of quantum mechanics as the two main theories describing our universe.
The findings were published in the journal, Nature, on December 10.Einstein, in his collective theorizing, posited that space and time are related and should be considered and calculated in relation to each other, and that the measurements of objects will be relative to the velocity of the person observing them. It is very empirical and observable.
Quantum mechanics, on the other hand, deals with particle behavior on an infinitely small scale and therefore cannot belong in Einstein’s empirically testable worldview for the simple reason that it is too abstract and theoretical.
Though both suffer from certain inconsistencies: Einstein’s theory, for instance, breaks down when one imagines the middle of a black hole – an object in which time and space both collapse – the theories have been competing each other and generally hardly viewed as parallel. Scientists have been looking for a linking theory.
Hyakutake’s model explains some inconsistencies between the two big models, furthering the research first carried out in 1997. Then, theoretical physicist, Juan Maldacena, catapulted ‘string theory’ into the spotlight providing a reliable realization of the holographic principle.
That theory – which is widely said to explain the nature of everything – believes that the universe is made of tiny, immeasurable ‘strings’, or one-dimensional objects that vibrate and fluctuate, and in so doing account for the activity of all matter and time.
The theory goes that the strings exist in nine dimensions of space and one of time. But because their scale is so difficult to measure – and yet they are believed to control everything – they are said to ‘project’ their activity onto a much simpler, flat space with no gravity whatsoever.
This produced a world without gravity laws. However, it did not yet prove the universe is a hologram.
Furthering the string theory, Hyakutake wrote two papers.n one, he measures the internal energy of a black hole – specifically, the place where the hole meets the universe, otherwise known as the ‘event horizon’. He measures the activity of its visible properties (made up of visible particles) based on string theory and the effects of virtual particles, which at times appear and then disappear – many scientists even consider them a purely mathematical tool.
In the second paper, Hyakutake and his team calculated the same activity at lower dimensions (without gravity involved) and the results matched the measurements of the first paper.
The two new papers take Maldacena’s findings further by proposing an extra dimension. That tenth lower dimension has no gravity and its particles neatly line up in a set of strings oscillating in harmony, attached to one another – and not in chaos, which is what we had until now.
And now, the scientists finally seem to have laid hands on mathematical proof that the universe can be measured according to both approaches – one that involves gravity and one that does not. If they are as identical as they seem, Maldacena himself predicts that we could one day use just quantum theory alone to explain the nature of everything in the universe.
Maldacena has already voiced his excitement at Hyakutake’s calculations, saying that they appear to be correct. He told Nature that “the whole sequence of papers is very nice because it tests the dual [nature of the universes] in regimes where there are no analytic tests.
They have numerically confirmed, perhaps for the first time, something we were fairly sure had to be true, but was still a conjecture — namely that the thermodynamics of certain black holes can be reproduced from a lower-dimensional universe,” said Leonard Susskind, a theoretical physicist at Stanford University, California, who was one of the first proponents of the theory of the universe as a hologram.
source ( RT )
0

Friday 13 December 2013

How to Easily Heat Your Home Using Flower Pots & Tea Lights

Wanting to cut costs on the energy bill, especially now that temperatures are dropping for the season? Economics may be one reason to seek more sustainable energy sources, but this inventive way to heat the house is also purely fascinating.


Journalist, YouTuber, and boat owner Dylan Winter created his DIY heater using tea lights and placed inside a bread tin and covered with two ceramic flowerpots. This creative system uses the scientific principles of convection heat transfer and, according to Winter, can heat his home for around 8 hours a day. His YouTube Channel KeepTurningLeft shows how the method works: The tea lights are first put into a bread loaf tin and covered with a small upside-down flower pot.

The hole in the top of the upside-down pot is covered with the metal casing leftover from one of the tea lights. Then the pot is covered by a second, larger pot and the hole in the bigger flower pot is left uncovered. This system works because the candles produce gases full of heated particles that are captured and channeled through the pots. As hot gas particles are lighter than the air, they will rise up through the top into the colder area. What will then be caused is the cold air to fall into the warm areas and create a convection current; then heat is transferred from one pot to another, and then out of the hole. One does not need a huge amount of money to invest in this economical heating method, either.

Winter began by buying 100 tea lights from Ikea for less than a dollar, a standard loaf tin, and two different sized flower pots. In the video it is shown four candles are used for the heating system. Sharing his invention with the world, Dylan explains that the heat from the candles warms the inside of the smaller flower pot, which becomes an ‘inner core’ that gets ‘very hot’. As explained before, a convection of air is then created between the smaller and larger pots and this heated air comes out of the top of the homemade heater. When asked about his heater, he said: “People have told me that judicious positioning of flowerpots help to make the heating more efficient. I did not believe it but it really does seem to work.

 You get a nice flow around the [pots] and it warms the room up. You’d be amazed.” Dylan even uses the flowerpot method on his boats to conduct heat. Truly inspiring for those seeking to simplify, be more frugal with their dollar, and leave less waste, perhaps this system will warm many families this year as winter makes itself more present.

Src ( Trueactivist )
0

Thursday 12 December 2013

High School Student Teaches the Teacher a Lesson!

Kid goes off on his teacher after she tells him to "Quit *****ing" after he made a comment about the work he received, and then he was asked to leave.

Wednesday 11 December 2013

Russell Brand - The only thing that matters to any of us is Love

Having said that this video is not about Russell Brand at all it is about the message and that message has never been more simple, its LOVE.Trimmed from hours of inspiring, loving and pure truth interviews/talks Russell has been involved in throughout the last year.


1

Welcome to The World of Sounds - Jonathan

Jonathan, 8 months old, makes his first step to the world of sound through cochlear implant surgery. Surgery was conducted on his right ear, which made him successfully hear his mother's lullaby.