41084399
submission
An anonymous reader writes:
Egyptian blogger Alber Saber, maintainer of the Egyptian Atheists Facebook page, has been
sentenced to three years in prison under Egypt's blasphemy law for posting the trailer for the anti-Muslim film Innocence of Muslims. This film was widely blamed for al-Qaeda's coordinated attacks on US embassies on September 11 of this year, which were meant to pressure the US for the release of Omar Abdel-Rahman, who is imprisoned in the US for his role in the World Trade Center attack of 1993.
38819063
submission
another random user writes:
Austrian skydiver Felix Baumgartner smashed a number of records with his "edge of space" stunt — including for live streaming.
More than eight million people flocked to their devices to watch the 43-year-old break the speed of sound live on Google's YouTube site. It is the largest number of concurrent live streams in the website's history, Google UK confirmed to the BBC.
38641161
submission
another random user writes:
Few researchers have given credence to claims that samples of dinosaur DNA have survived to the present day, but no one knew just how long it would take for genetic material to fall apart. Now, a study of fossils found in New Zealand is laying the matter to rest — and putting paid to hopes of cloning a Tyrannosaurus rex.
After cell death, enzymes start to break down the bonds between the nucleotides that form the backbone of DNA, and micro-organisms speed the decay. In the long run, however, reactions with water are thought to be responsible for most bond degradation. Groundwater is almost ubiquitous, so DNA in buried bone samples should, in theory, degrade at a set rate.
Determining that rate has been difficult because it is rare to find large sets of DNA-containing fossils with which to make meaningful comparisons. To make matters worse, variable environmental conditions such as temperature, degree of microbial attack and oxygenation alter the speed of the decay process.
By comparing the specimens' ages and degrees of DNA degradation, the researchers calculated that DNA has a half-life of 521 years. That means that after 521 years, half of the bonds between nucleotides in the backbone of a sample would have broken; after another 521 years half of the remaining bonds would have gone; and so on.
38638823
submission
another random user writes:
Scientists in the Arctic have launched an urgent investigation into how solar storms can disrupt sat-nav.
Studies have revealed how space weather can cut the accuracy of GPS by tens of metres. Flares from the Sun interact with the upper atmosphere and can distort the signals from global positioning satellites.
The project is under way at a remote observatory on a windswept mountainside in the Norwegian archipelago of Svalbard in the High Arctic. The site was chosen for its isolation from electronic pollution and for its position in relation to the Earth's magnetic field which flows from space down towards the far North.
