Digital images that have been tampered with could now be spotted – thanks to a digital ‘watermark’ developed by UK scientists
Digital images such as CCTV footage are increasingly being used as evidence in high profile court cases. However, it is easy to tamper with an image and very difficult to tell if any manipulation has taken place.
Researchers have created a digital version of a watermark to tackle this problem and validate digital evidence. The team is led by Profes
A new study published in BMC Public Health shows that breathing in second-hand smoke significantly increases the risk of developing heart problems in non-smokers. These findings have serious consequences for public health giving weight to calls for smoking to be banned in public places.
In 1995 cardiovascular diseases accounted for nearly 15 million deaths, approximately 30% of deaths worldwide. Smokers are becoming increasingly aware of the links between smoking and heart disease as warning
Surprise Discovery with World`s Leading Telescopes
Combining data from the NASA/ESA Hubble Space Telescope (HST) and the ESO Very Large Telescope (VLT), a group of European and American astronomers have made an unexpected, major discovery.
They have identified a huge number of “young” stellar clusters, only a few billion years old , inside an “old” elliptical galaxy (NGC 4365), probably aged some 12 billion years. For the first time, it has been possible to identify several
The same material that makes the theft detectors go off in a department store when the salesperson forgets to remove the anti-theft tag, may make inexpensive, passive temperature and stress sensors for highways, concrete buildings and other applications possible, according to Penn State researchers.
“These materials typically cost about $100 a mile and each sensor is about an inch long,” says Dr. Craig A. Grimes, associate professor of electrical engineering and member of Penn States
By the age of three, Catholic children are already twice as likely to say they don`t like the police compared to Protestant children. By the age of six, a third of children are identifying with one of the two main communities and just under one in six (15%) are making sectarian statements according to a major University of Ulster research report published today.
The report, called ‘Too Young to Notice? The Cultural and Political Awareness of 3-6 Year Olds in Northern Ireland,’ is the first
Arantxa Aranburu, doctor of the University of the Basque Country and lecturer of the Department of Geology, has proved that the bones of Homo heidelbergensis found in Sima de los Huesos, Atapuerca, are even older than thought.
In the gallery of Sima de los Huesos, Atapuerca, a speleothem was found during a stonecutting, over the bones of the ancestors of the Neanderthals, the Homo heidelbergensis . Speleohtem is a carbonate precipitate, that is, it is made of the same material
Star’s sudden 2020 slowdown allows for test of ‘anti-glitch’ theory. On Oct. 5, 2020, the rapidly rotating corpse of a long-dead star about 30,000 light years from Earth changed speeds….
Models capture how solar wind charge exchange events are observed. Researchers from Tokyo Metropolitan University have used numerical methods to model the variations observed in soft X-ray signals detected by…
An interdisciplinary team of researchers from the Max Planck Institute of Colloids and Interfaces (MPICI) has investigated how the natural properties of native tree bark can be used to create…
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science. Cars, buildings, infrastructures – all unimaginable without steels. While metallic…
Technology helps sensor and camera systems perform optimally by keeping optics transparent. Researchers have developed an optical coating system that combines antifogging and antireflective properties. The new technology could help…
The development of stimuli-responsive polymers has brought about a wealth of material-related opportunities for next-generation small-scale, wirelessly controlled soft-bodied robots. For some time now, engineers have known how to use…