Science & Technology
The recently established Science and Technology Facilities Council, STFC, has abandoned involvement in a telescope, high-energy gamma-ray astronomy and ground-based studies of the Sun's effect on the Earth amid a range of budget slashing that has been caused by an £80 million shortfall.
|
| ©Unknown |
| Quantum conjurers from Imperial College London: Dr Mark Frogley and Prof Chris Phillips |
It sounds like magic: walls, curtains, even dresses could be rendered transparent by bathing them in a specially crafted beam of light. Rescuers could use the beam to peer through rubble after an earthquake, while doctors could gaze at a damaged lung after making a patient's skin and ribs vanish.
It's light. And although we know it primarily as the opposite of darkness, most of light is not visible to our eyes. From low energy radio waves to high energy gamma rays, light zips around us, bounces off us, and sometimes goes through us.
Humans had been speaking for a couple hundred thousand years before they got the inspiration or nerve to mark their ideas down for posterity.
But when a Mesopotamian people called the Sumerians finally did scratch out a few bookkeeping symbols on clay tablets 5,000 years ago, they unknowingly started a whole new era in history we call, well ... history.
Comment: It should be noted that female scribes were very common. According to the book "When God Was a Woman", by Merlin Stone:
"The Epic of Gilgamesh reveals that the official scribe of the Sumerian heaven was a woman, while the initial invention of writing was credited to a goddess."
But are the most magical moments from some of our favorite stories actually possible? Basic physical principles and recent scientific research suggest that what readers might mistake for fantasies and exaggeration could be rooted in reality.
So suspend your imagination for a moment, and look at the following fairy tales as a hard-core scientist might.
Wool socks, skirts and silk ties may soon clean themselves of smells and stains in the sunshine, researchers in Australia and China suggest.
|
| ©Unknown |
| Red wine stained wool with no treatment (top), a stain-treating agent (middle) and nano particle coating (bottom) |
However, large amounts of mass or energy think here of the incredibly dense core of an exploded star known as a neutron star can curve space-time, resulting in the warping of the fabric which can be observed as gravitational shifts.
Two teams have come up with a design of special materials that could cloak an object from sound and a third has already devised a scheme to create them, so sound waves travel seamlessly around them.
The work follows recent research on "invisibility cloaks", where a number of teams have shown that synthetic materials, called metamaterials - which are designed down to the microscopic level - can make beams of light flow around an object to make it invisible.
Implications for evacuations and how to guide people safely in an emergency will arise from the discovery that most of us are happy to play follow-my-leader, even if we are trailing after someone who does not know where they are going and taking the most meandering route.
Even more striking, even when we are shown a faster route, we prefer to stick with the old one and tell others to take the long road too, a finding that could have lethal implications when it comes to evacuating a building or ship in an emergency.







Comment: In order to have a better understanding in the issues involved, and how they are seen by the scientists themselves - see the Comments on the BBC News story "UK physics has a 'brighter future'"