The pigeonhole principle: “If you put three pigeons in two pigeonholes, at least two of the pigeons end up in the same hole,” is an obvious yet fundamental principle of nature as it captures the very essence of counting. Here however we show that in quantum mechanics this is not true! We find instances when three quantum particles are put in two boxes, yet no two particles are in the same box. Furthermore, we show that the above “quantum pigeonhole principle” is only one of a host of related quantum effects, and points to a very interesting structure of quantum mechanics that was hitherto unnoticed.
MistrX writes: How about building a real life size USS-Enterprise in the next couple of decades? This project aims to do just this. With existing technologies available today and researching new ones.
"This website proposes something truly inspiring. It is this: We have the technological reach to build the first generation of the spaceship known as the USS Enterprise – so let’s do it. The ship can be similar in size and will have the same look as the USS Enterprise that we know from the Star Trek science fiction. It ends up that this ship configuration is quite functional. This first generation Enterprise can have 1g artificial gravity and ample living space. It can be as comfortable to live in as being on earth. A thousand people can be on board at once – either as crew members or as adventurous visitors. While the ship will not travel at warp speed, it can travel at a constant acceleration such that the ship can easily get to key points of interest in our solar system."
MistrX writes: "NASA's Cassini spacecraft made its closest approach to Saturn's tiny moon Methone as part of a trajectory that will take it on a close flyby of another of Saturn's moons, Titan. The Titan flyby will put the spacecraft in an orbit around Saturn that is inclined, or tilted, relative to the plane of the planet's equator. The flyby of Methone took place on May 20 at a distance of about 1,200 miles (1,900 kilometers). It was Cassini's closest flyby of the 2-mile-wide (3-kilometer-wide) moon. The best previous Cassini images were taken on June 8, 2005, at a distance of about 140,000 miles (225,000 kilometers), and they barely resolved this object."
MistrX writes: "While there are plenty of ways to make carbon-based products from CO2, these methods usually require a lot of energy because the CO2 molecules are so stable. If the energy comes from the burning of fossil fuels, then the net result will be more CO2 entering the atmosphere. Now a material scientist at Michigan Technological University has discovered a chemical reaction that not only soaks up CO2, but also produces useful chemicals along with significant amounts of energy."
MistrX writes: The Dutch company PAL-V completed it's first series of testflights with it's flying car, the PAL-V One, successfully. The PAL-V One flies like a gyrocopter, with a minimal runway length of 165 meters, and drives around like a trike on the road. Furthermore it offers 2 passengers at a maximum speed of 180km/h on both on land and in the air.
The company aims with the PAL-V One on usage within the United States, China, the United Kingdom, Germany and France, because private flying is more commonplace.
MistrX writes: Researchers announce that the components of DNA have now been confirmed to exist in extraterrestrial meteorites. A different team of scientists also discovered a number of molecules linked with a vital ancient biological process, adding weight to the idea that the earliest forms of life on Earth may have been made up in part from materials delivered to Earth the planet by from space.
Past research had revealed a range of building blocks of life in meteorites, such as the amino acids that make up proteins. Space rocks just like these may have been a vital source of the organic compounds that gave rise to life on Earth.
MistrX writes: Researchers from TNO have made a world wide breakthrough in the battle against lethal bacteria such as EHEC. Food scientists from TNO were able to find natural ingredients that effectively cut bacteria short that had become resistent to antibiotics. The discovery has been tested using the ESBL-bacterium, but is also applicable against the EHEC-bacterium. The finding comes at a time when the bacteria has made more than 20 lethal victims in Germany and has infected thousands.
MistrX writes: (PhysOrg.com) — If the latest theory of Tom Weiler and Chui Man Ho is right, the Large Hadron Collider – the world's largest atom smasher that started regular operation last year – could be the first machine capable causing matter to travel backwards in time.
MistrX writes: A lot of people in the Netherlands saw a fireball at around seven pm on Tuesday evening. Astronomer Theo Jurriens from Groningen University confirmed that it was an extremely bright meteor which broke into three pieces after hitting the atmosphere. He says he received about 100 reports of sightings of the meteor from people throughout the country. The KNMI national weather centre also received a large number of calls reporting the event. It was also witnessed in Germany and Belgium