British researchers have created the ‘new black’ of the science world - and it is being dubbed super black.
The material absorbs all but 0.035 per cent of light, a new world record, and is so dark the human eye struggles to discern its shape and dimension, giving the appearance of a black hole.
Named Vantablack, or super black, it also conducts heat seven and half times more effectively than copper, and is ten times stronger than steel.
It is created by Surrey NanoSystems using carbon nanotubes, which are 10,000 thinner than human hair and so miniscule that light cannot get in but can pass into the gaps in between.
Rainbow ‘bird’s nest’ MRI reveals how a heart beats
(Image: Laurence Jackson)
This is not a colourful bird’s nest: it is the collection of muscle fibres that work together to make a mouse heart beat.
The vivid MRI picture was captured using diffusion tensor imaging, which tracks the movement of fluid through tissue, using different colours to represent the orientation of the strands.
The fibres, which spiral around the left ventricular cavity, curve in different directions around the inside and outside walls of the chamber. When the fibres pull against one another, the result is an upwards twisting motion that forces blood to be pumped out.
The image, which was the overall winner of the Research Images as Artcompetition at University College London last year, is currently on display at the Summer Science Exhibition taking place at the Royal Society in London. It is part of an exhibit showcasing future imaging techniques that will allow us to peer inside the body.
Q:what are minerals and what makes them a mineral
Space Probes is the first complete and fully illustrated history of the international space exploration program. Thoroughly up to date, it is organized by destination and includes every space probe launched by all countries active in space exploration the United States, the USSR/Russia, the European Union, Japan, China and India.
It’s a mix of hell and outer space.
how are u going to tell me mermaids dont exist then
i think this is the creepiest post i’ve ever seen.
I want to be alive when they start traveling deeper.. I can’t wait to see what they discover.
Simulating time travel: Doctor Who meets Professor Heisenberg
(Phys.org)—University of Queensland researchers have simulated time travel using light particles. Lead author and PhD student Martin Ringbauer, from UQ’s School of Mathematics and Physics, said the study used photons – single particles of light – to simulate quantum particles traveling through time and study their behavior, possibly revealing bizarre aspects of modern physics. “The question of time travel features at the interface between two of our most successful yet incompatible physical theories – Einstein’s general relativity and quantum mechanics,” Mr Ringbauer said. “Einstein’s theory describes the world at the very large scale of stars and galaxies, while quantum mechanics is an excellent description of the world at the very small scale of atoms and molecules.” Einstein’s theory suggests the possibility of travelling backwards in time by following a space-time path that returns to the starting point in space, but at an earlier time-a closed timelike curve. This possibility has puzzled physicists and philosophers alike since it was discovered by Kurt Gödel in 1949, as it seems to cause paradoxes in the classical world, such as the grandparents paradox, where a time traveller could prevent their grandparents from meeting, thus preventing the time traveller’s birth. This would make it impossible for the time traveller to have set out in the first place. UQ Physics Professor Tim Ralph said it was predicted in 1991 that time travel in the quantum world could avoid such paradoxes. “The properties of quantum particles are ‘fuzzy’ or uncertain to start with, so this gives them enough wiggle room to avoid inconsistent time travel situations,” he said. Professor Ralph said there was no evidence that nature behaved in ways other than standard quantum mechanics predicted,but this had not been tested in regimes where extreme effects of general relativity played a role, such as near a black hole. (via Simulating time travel: Doctor Who meets Professor Heisenberg)