Dust Devils, Saturn’s Secrets And The Mystery Of An Ancient Eclipse
The October issue of the Royal Astronomical Society’s journal, “Astronomy and Geophysics”, contains the following feature articles.
Ptolemy, Babylon and the Rotation of the Earth
Many authors have questioned Ptolemy’s account of a lunar eclipse that was supposedly observed by the Babylonians. John Steele finds that Ptolemy was right to believe that Babylonian observers saw the eclipse of 23 December 383 BC - which poses a problem that can be solved by invoking a large clock error or unusual atmospheric conditions.
Inside Dust Devils
Dust devils are rotating columns of dust-laden air that are common on both Earth and Mars. T J Ringrose presents a new way to produce convective vortices in the lab, comparing the results with dust devils on these planets.
Cassini at Titan: The Story So Far
The Cassini spacecrafts first year examining Saturn and its moons has uncovered many surprises, not least the atmosphere and surface of the enigmatic moon Titan. Nick Teanby reviews the progress made and discusses prospects for the future.
Sounding The Dark Cosmos
Recent observations suggest that the universe has been accelerating rather than slowing down in the past few billion years. Bruce Bassett, Bob Nichol and Daniel J Eisenstein explain why the Wide Field Multi-Object Spectrograph, a proposed new instrument for the Gemini and Subaru telescopes, will need to look far into the universe, over a wide area, in order to map sound waves from the dawn of time and unravel the mystery of dark energy.
Promoting Planetary Science
Mike Hapgood summarizes the RASs position on planetary sciences in the UK, a subject that delivers world-class results, but needs focused support in order to continue to thrive.
(A summary of the RAS position was also issued in RAS press notice PN 05/39. The full statement is available on the RAS Web site.)
Dr. Sue Bowler | alfa
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...