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Monday, 31 October 2011

Satellite Images Show Air Trafiic, Data links, Transportation lines

Air traffic routes between North America and Europe
Air traffic routes are shown between North America and Europe. Felix Pharand-Deschenes has created global snapshots depicting how power lines, roads and even air traffic corridors have come to dominate the surface of Earth. His visualisations based on real data show air traffic routes, the underwater cables that carry the internet, road and rail networks and electricity transmission lines all superimposed over cities at night.


Major road and rail networks in Europe, along with transmission line and underwater cable data, superimposed over satellite images of cities illuminated at night
Felix's visualisations showing how human technology has taken over our crowded planet come just one week before the global population is set to top seven billion. The United Nations Populations Fund has revealed that by October 31st, there will be an extra billion people on the Earth compared to 1999.
Major road and rail networks in Europe, along with transmission line and underwater cable data, superimposed over satellite images of cities illuminated at night


Human technology presence over North America at night. Global map showing major road and rail networks over land, along with transmission line and underwater cable data superimposed over satellite images of cities illuminated at night.
Felix used US government sources like the National Geospatial Intelligence Agency and the National Oceanic for railways, pipelines and roads as well as the Atmospheric Administration for the air traffic to piece together the visualisations.
Human technology presence over North America superimposed over satellite images of cities illuminated at night


Human technology presence over Asia at night. Global map showing major road and rail networks over land, along with transmission line and underwater cable data superimposed over satellite images of cities illuminated at night
"These pictures show several sides of global human activities," said 34-year-old Felix, from Montreal, Canada. "We see everything from paved and unpaved roads, light pollution, railways, electricity transmission lines. All the way to submarine cables, pipelines, shipping lanes and air traffic. The show the extent of our civilisation, the patterns of our global sprawl, how human-influenced our planet now is."
Human technology presence over Asia at night


Human technology presence over Africa at night. Global map showing major road and rail networks over land, along with transmission line and underwater cable data superimposed over satellite images of cities illuminated at night.
Felix is the founder and director of Globaia, an organisation that seeks to enhance awareness of the impact and role of the human race on our world. He has spent 13 years researching and presenting his theories to students, fellow academics and the general public. "During this time I have been designing and presenting conferences on the global issues of our time," said Felix. "I believe a picture is worth a thousand words, so I slowly started to improve my design skills to be able to show what I was explaining."
Human technology presence over Africa at night


Road and rail networks in South America superimposed over satellite images of cities illuminated at night, along with transmission line and underwater cable data
"There is a growing number of global datasets showing the extent of our ecological footprint," he said. "These are numbers and tables but I decided to use these datasets and to present them in a more realistic way. I started to gather data from numerous sources and to explore ways of assembling them."
Road and rail networks in South America superimposed over satellite images of cities illuminated at night


Human technology presence over Australasia at night
During his research Felix found that over three per cent of the world's land surface has now been covered in tarmac. This amounts to 1.7 million square miles and is a greater land area than the whole of India.
Human technology presence over Australasia at night


Air traffic routes over sea around North and South America
Despite the threat to nature that this rise of humanity represents, Felix is positive about the legacy of our species. "Today's global civilisation is the work of billions of people throughout history," he said. "It has been established through much effort, successes and sufferings - as well as wars, inventions, exchanges, crisis and socio-technological changes. The world at the start of the 21st Century is also the result of what we call the Great Acceleration - the most rapid transformation of the human relationship with the natural world in history. Many human activities reached take-off points sometime in the mid-20th Century and sharply accelerated towards the end of the century."
Air traffic routes over sea around North and South America


Road and rail networks in Europe, along with transmission lines and underwater cables
Road and rail networks and cities illuminated at night in Europe, along with transmission lines and underwater cables


Human technology presence over North America
Human technology presence over North America


Major road and rail networks in Africa, along with transmission line and underwater cable data
Major road and rail networks in Africa, along with transmission line and underwater cable data


Major road and rail networks in Australasia, along with transmission line and underwater cable data
Major road and rail networks in Australasia, along with transmission line and underwater cable data

Thursday, 27 October 2011

World First computer worm/Malware

File:Morris Worm.jpg
The Morris worm or Internet worm of November 2, 1988 was one of the first computer worms distributed via the Internet. It is considered the first worm and was certainly the first to gain significant mainstream media attention. It also resulted in the first conviction in the US under the 1986 Computer Fraud and Abuse Act. It was written by a student at Cornell University, Robert Tappan Morris, and launched on November 2, 1988 from MIT.
It is usually reported that around 6,000 major UNIX machines were infected by the Morris worm. Paul Graham has claimed that
"I was there when this statistic was cooked up, and this was the recipe: someone guessed that there were about 60,000 computers attached to the Internet, and that the worm might have infected ten percent of them."
The U.S. GAO put the cost of the damage at $10M–100M.
The Morris worm prompted DARPA to fund the establishment of the CERT/CC at Carnegie Mellon University to give experts a central point for coordinating responses to network emergencies. Gene Spafford also created the Phage mailing list to coordinate a response to the emergency.
Robert Morris was tried and convicted of violating United States Code: Title 18 (18 U.S.C. § 1030), the Computer Fraud and Abuse Act. in United States v. Morris. After appeals he was sentenced to three years probation, 400 hours of community service, and a fine of $10,000.
The Morris worm has sometimes been referred to as the "Great Worm", because of the devastating effect it had on the Internet at that time, both in overall system downtime and in psychological impact on the perception of security and reliability of the Internet. The name was derived from the "Great Worms" of Tolkien: Scatha and Glaurung.




source : wikipedia

What exactly is a QR Code?

File:Qr-1.png
A QR code (abbreviated from Quick Response code) is a type of matrix barcode (or two-dimensional code) first designed for the automotive industry. More recently, the system has become popular outside of the industry due to its fast readability and comparatively large storage capacity. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be made up of any kind of data (e.g., binary, alphanumeric, or Kanji symbols).
Created by Toyota subsidiary Denso Wave in 1994 to track vehicles during the manufacturing process, the QR code is one of the most popular types of two-dimensional barcodes. It was designed to allow its contents to be decoded at high speed.
The technology has seen frequent use in Japan; the United Kingdom is the seventh-largest national consumer of QR codes.

please refer wikipedia.org for more info.