Researchers at Arizona State University have created the world’s first white laser beam, according to a new study published in Nature. More work needs to be done to perfect this technology, but white lasers could serve as a potential alternative light source — both in people’s homes and in the screens of their electronics. Lasers are more energy efficient than LEDs, and the ASU researchers claim that their white lasers can cover 70 percent more colors than current standard displays.
The researchers also suggest the technology could be used beyond consumer electronics. They suggest white lasers could be used in Li-Fi, a developing technology that uses multiple colors of light to enable high-speed wireless internet access. Currently, LEDs are being used to develop Li-Fi technology, which could be 10 times faster than current radio-based Wi-Fi. Ning and his colleagues argue that Li-Fi using white lasers could be 10 to 100 times faster than LED-based Li-Fi.
WHITE LASERS COULD SERVE AS A POTENTIAL ALTERNATIVE LIGHT SOURCE
For the past 50 years, lasers have been able to emit every single wavelength of light — except for white. The problem is that typical lasers only beam one specific wavelength of light at a time. To create white, the ASU researchers manufactured three thin semiconductor lasers — each as thick as one-thousandth of a human hair — and lined them up parallel to one another. Each semiconductor emits one of the three primary colors and are then combined together to form white. The entire device can also be tuned to create any color in the visible spectrum.
White lasers won’t be showing up in our electronics any time soon, however. For this study, the researchers had to pump electrons into the semiconductors with an additional laser light. The engineers will have to design white lasers to run on battery power before they can be used for commercial applications.
This image shows mixed emission color from the semiconductor lasers in the colors of red, green, blue, yellow, cyan, magenta, and white. (ASU/Nature Nanotechnology)
This article, Terrafugia unveils new TF-X flying car design, originally appeared on CNET.com. Terrafugia unveils new TF-X flying car designThe updated TF-X. Terrafugia Getting a light plane-car hybrid off the ground seems to be an arduous process. The TF-X, by American flying car company Terrafugia, was announced in May 2013, and will be in development some years yet. The updated TF-X. Terrafugia But if your interest needed a pique, the company has announced something new: the updated exterior design of the TF-X (or outer mold line). In addition, Terrafugia said, the new design for the TF-X has been successfully tested in a one-tenth scale model wind tunnel, which is currently on display at the EAA AirVenture aviation convention in Oshkosh, Wisconsin. “The model will be tested at the MIT Wright Brothers wind tunnel, the same tunnel that was used to test models of Terrafugia’s Transition. The wind tunnel test model will be used to measure drag, lift and thrust forces while simulating hovering flight, transitioning to forward flight and full forward flight,” Terrafugia wrote. The original 2013 design of the TF-X. Terrafugia The TF-X is the successor to the company’s Transition aircraft, which was successfully flown at EAA AirVenture in 2013. The company, founded in 2006 by MIT aeronautics and management graduates in Woburn, Massachusetts, was expected to start delivering its first Transition units at a projected $279,000 in 2015 or 2016. However, delivery of the first units was originally expected in 2011 and has been postponed several times since then — and it’s still expected to take a couple more years and cost up to $400,000, according to a report on Engadget. The newer flying car will be a hybrid electric vehicle. It will have the capacity to carry four people, fit into a standard single-car garage, and be both street-legal and easy to fly — taking, on average, around five hours to learn to operate in the skies. It will also, Terrafugia claims, be able to take off and land vertically, with “auto-landing” at approved sites. from left to right: street mode; take off and landing mode; and flight mode. Terrafugia In May of 2013, Terrafugia said the development of the TF-X would take between eight to 12 years. So far, it seems to be sticking to that timeline. You can read more about what the flying car has to offer (and sign up for email updates) on the Terrafugia website.
Japan has opened the doors to the world’s first automated, robot-staffed hotel, replacing people with pretty, lifelike lady humanoid receptionists and a bow tie-wearing, dinosaur concierge.
At the Henn-na Hotel, or ‘Strange Hotel,’guests check in, check out, get their rooms cleaned and their luggage conveyed by a fleet of blinking, beeping and rolling robots that the hotel describes as “warm and friendly.”
Likewise, as part of their aim to feature cutting-edge technology, stays are keyless. Instead, guests enter their rooms via facial recognition technology.
Aside from its novelty factor, the use of robots and the emphasis on automated services is part of a bigger concept: To reduce labor costs, save energy, reduce waste, and develop a self-sufficient hotel powered by solar energy and machines.
For example, rooms are conspicuously absent of refrigerators, lights are motion-sensored, and rooms are cooled using an energy-efficient radiant panel air conditioning system.
The hotel is part of the Dutch theme park Huis Ten Bosch in Sasebo, Nagasaki, and may be expanded across Japan and abroad, said company president Hideo Sawada.
Strange Hotel in Japan
Future plans also include the addition of Chinese and Korean languages to the robots’ repertoire.
Other features include a porter robot, that will transport luggage to guest rooms, and a self-serve cafe which serves snacks and drinks from, what else, a vending machine.
It’s not just Japan that’s replaced humans with robots in hotels. Over in California, not far from Apple’s corporate campus, Aloft Hotels put what they called the world’s first robotic butler at the front desk last year. Botlr is used to shuttle amenities to guest rooms and acknowledges requests with peppy beeps and flashing lights.
Meanwhile, though the industry may be moving increasingly towards automated hotel services, the results of a recent JD Power survey that polled 62,000 guests in the US and Canada suggest that there’s still value in old-fashioned human contact: When staff greeted guests with a simple smile “all the time,” the average number of problems reported fell by 50 percent.
Room rates at the Strange Hotel, which features 144 rooms, start at 9,000 JPY ($73 USD) for a single room.
Astronaut Robert L. Satcher Jr. works outside the International Space Station in 2009. NASA hopes that 3D printing will allow astronauts to set up permanent habitats in the future. NASA/HANDOUT/REUTERS
NASA are aiming to introduce 3D printers into spacecraft within two years, allowing astronauts to set up permanent habitats on other planets and even print their own food.
In an interview with Newsweek, NASA’s 3D printing chief Niki Werkheiser says the technology will revolutionize space travel by allowing astronauts to be away from year for years on exploration missions without relying on ground control.
Current costs for space transportation are $10,000 per pound of mass. The development therefore has the potential to save millions of dollars as astronauts can travel light and print essentials on demand whilst in space.
NASA is currently developing its largest rocket yet, the Space Launch System (SLS). The SLS is due to make its first test flight in 2017 and Werkheiser says her team are working to get a 3D printer on-board.
So far, Werkheiser’s team at NASA’s Marshall Space Flight Center in Alabama have produced several rocket components and a small wrench with the technology and yesterday the team announced the first successful print of a copper engine part for rockets.
However, they are working on much more exciting projects, including printing parts for a small shelter using substitutes for Martian and lunar sand – the theory being that astronauts could one day use the printers to build themselves habitats on extraterrestrial surfaces.
“The bottom line is being able to print anything you need in orbit. When we live on the ground, we don’t think much about running to Home Depot if something breaks but when you’re in space, even tiny things make a difference,” says Werkheiser.
The space agency is also funding a Texas-based company which is researching printing food, and has already produced prototype results in the form of printed pizza.
Other projects include developing a recycler which breaks down food wrappers into filament which the printer could convert into useful tools like circuit boards and batteries.
Werkheiser is optimistic that commercial applications of the technology means 3D printing in space will not be a thing of the future for long.
“The beautiful thing about 3D printing is that you’re going to see a pretty rapid evolution of commercial development. It’s going to happen,” says Werkheiser.
NASA has spent some $3m on the In-Space Manufacturing project which Werkheiser heads up.
The prototype 3D printer used on the International Space Station is the size of a small microwave and prints objects the size of an iPhone 6.
It produces objects by a process known as additive construction, using plastic filament as ink and constructing objects by a layering technique. Instructions are uplinked to the printer from ground control via email.
Werkheiser’s team are working on introducing metal filament to allow the printer to produce sturdier tools.
However, they are still working to overcome certain challenges posed by manufacturing in microgravity – for example, whether the layers of heated plastic form strong bonds when layered on top of each other in the absence of gravity.
Nevertheless, Werkheiser believes the technology will provide the key to allowing astronauts to live in space with the same freedom as on earth.
“This suite of capabilities will enable us to operate and live in space as we do on the ground. You need to get that autonomy in space and this is the secret sauce to getting there.”
Potentially good news for those who want to zip around our solar system, and beyond, at speeds approaching that of light — and maybe even faster.
NASA, according to NASASpaceFlight.com, is quietly claiming to have successfully tested a revolutionary new means of space travel that could one day allow for such insane speed, and to have done it in a hard vacuum like that of outer space for the first time.
The technology is based on the electromagnetic drive, or EM drive.
The science behind the EM drive is, well, complicated to say the least, but the basic idea is to convert electrical energy into thrust without propellant (the fuel in rockets), which should be impossible because it violates the law of conservation of momentum. That law states that momentum can only be changed by one of the forces described by Newton’s laws of motion — that’s where propellant normally comes in with traditional rockets.
If you want to dive into the “hows” and “whys” of all this, they’re discussed at length — by amateur enthusiasts as well as Ph.Ds and one of the NASA engineers actually working on the EM drive — on this NASASpaceFlight.com forum.
Scientists from the US, UK and China have demonstrated the EM drive over the past 15 years or so, but it’s been controversial, since as mentioned above, the EM drive would seem to violate classical physics. NASA’s tests in conditions that mimic outer space, however, bring a new sense of possibility to electromagnetic propulsion.
If such a technology really does work, and can be implemented in future spacecraft, the implications include faster, cheaper and more efficient travel around our solar system and beyond, and could even be a stepping stone to faster-than-light travel. Yes Trekkers, I do mean a warp drive.
Imagine a vehicle carrying half a dozen passengers and luggage to the moon in about four hours, or a multi-generational trip at almost one-tenth the speed of light to reach Alpha Centauri in less than a century. The technology that makes this a reality could be in testing right now in Texas at the Johnson Space Center.
NASA did not immediately respond to a request for comment, but we reached out to Paul March, the engineer who has been working on the EM drive at JSC and sharing some of the results on the forum mentioned above. He told us:
“My work at Eagleworks (the lab at JSC where the EM drive is being tested) is just a continuation of my work tackling the fundamental problem that has been hindering manned spaceflight from the termination of the Apollo moon program. That being the availability of a robust and cost-effective power and propulsion technology that can break us loose from the shackles of the rocket equation.”
The technology will still require more tests to verify that it’s the real deal (none of this has gone through anything like a rigorous peer review, except for the pretty vigorous discussion on the above forum), and any spacecraft that ends up using an EM drive will basically need a substantial onboard nuclear power plant that will need to be developed for such a specific use in space.
The notion of flying through space atop a nuclear reactor shouldn’t be any more scary than all the radiation flying through space outside our hypothetical future moon taxi though, so don’t worry.
Enceladus, shown in this recent image captured by the Cassini spacecraft, one of Saturn’s moons (Reuters / NASA)
The newly-discovered subsurface ocean on Saturn’s icy moon of Enceladus is similar in makeup to some of the life-bearing salt lakes on Earth, a new US study suggested.
Astrobiologists believe this small moon is the best place to search for alien life in the Solar System.
The 505-kilometer-wide satellite is geologically active, with powerful geysers blasting through its ice shell.
Those geysers contain water which researchers suggest comes from an ocean located beneath the moon’s icy surface.
A new paper entitled ‘The pH of Enceladus,’ published on Wednesday in the journal Geochimica et Cosmochimica Acta, looks into the chemical reactions that occur as Enceladus’ ocean water comes into contact with its rocky mantle.
The authors based their research on data gathered by NASA’s Cassini spacecraft, which has been orbiting Saturn since 2004.
They used mass-spectrometry measurements of the gases and ice grains in Enceladus’ plume to develop a model that estimates the saltiness and pH of the water in the moon’s inner ocean.
According to the US team’s findings, the ocean on Enceladus is likely salty and has a basic pH of 11 or 12, neutral pH being 7.
The same pH levels are found in ammonia-based glass-cleaning solutions, but some organisms on Earth are still capable of living in such conditions.
The high concentration of sodium chloride (NaCl) makes Enceladus’ ocean resemble terrestrial ‘soda lakes,’ such as Mono Lake in California.
It’s good news for the those hunting alien life as a the fauna of Mono Lake includes brine shrimp and many different microbes.
The team’s model suggests that the ocean’s high pH is explained by serpentization, a process where metallic rocks from Enceladus’ upper surface are transformed into minerals due to contact with water.
Serpentization also leads to the production of molecular hydrogen (H2), which is a potential source of chemical energy for any life form in the ocean’s water, the paper said.
“Molecular hydrogen can both drive the formation of organic compounds like amino acids that may lead to the origin of life, and serve as food for microbial life such as methane-producing organisms,” the study’s lead-author Christopher Glein, from the Carnegie Institution for Science in Washington, said in a statement.
Glein described serpentinization as a link between geological processes and biological processes on the moon.
“The discovery of serpentinization makes Enceladus an even more promising candidate for a separate genesis of life,” he stressed.
The hidden ocean was discovered on Enceladus earlier this year by Italian scientists from Sapienza University in Rome, who also analyzed Cassini data.
They said that active hydrothermal vents are likely to exist on Enceladus’ seafloor, providing conditions similar to those that gave rise to some of the first life forms on Earth.
Read more at http://endthelie.com/2015/05/08/cradle-of-alien-life-ocean-on-saturn-moon-resembles-habitable-lakes-on-earth/#aYHUOIUcJpEW18zX.99
SO THE EMAILS ARE NOT REAL ! OH WELL BAD TO WORSE CLOWN !!! 1
Computer crimes in New York City and throughout New York State are no longer the crimes of the future, but the crimes of today. New York criminal defense attorneys and prosecutors alike are seeing cybercrimes and computer crimes being perpetrated in new schemes and in more creative manners almost daily. Having said that, while the means by which computer crimes such as Computer Tampering, Computer Trespass, Unauthorized Use of a Computer and Unlawful Duplication of Computer Related Material are perpetrated, statutorily defined defenses have remained the same. To be clear, there are many ways your criminal defense attorney may ascertain the best defense against a criminal allegation, but in the realm of computer crimes there are specific defenses set forth in the New York Penal Law pursuant to section 156.50.
Section 1030 has many subsections and variations; however, at its core, the statute makes it illegal to access anyone else’s computer without that person’s permission or authority. Just accessing another’s computer is a misdemeanor – punishable by up to one year in jail and a $100,000 fine.
Having the FBI knocking on your door at 6 in the morning can be the most frightening experience in your life. They enter, start searching through your most personal belongings, take your papers, records, phone and computers and leave. It may be great tabloid fodder for the foreseeable future, but hacking computers, PCs, mobile devices and Apple’s ICloud is a very dangerous and risky pastime.
You need not be the anonymous celebrity hacker to feel the power and wrath of law enforcement from Federal agents to prosecutors. There will be few, if any, Federal judges who will not come down hard with bail upon your arrest or punish you severely at your sentencing should you be convicted of a computer hacking offense. If nothing else is clear, you and your criminal lawyer will have a long road ahead if you are accused, the target, or a subject of a computer hacking offense. If prosecutors have successfully executed search warrants and found materials on your computers, tracked IP information, and obtained any statements from you during the course of their investigation, your predicament can easily go from bad to worse. So PLEASE TAKE WHATEVER YOU HAVE PLACE ON MY COMPUTER TO STOP ME FROM ERASING YOUR COMMENTS TAKE IT OFF OR BAD TO WORSE COULD BE U !!! 1
In early December, NASA will take an important step into the future with the first flight test of the Orion spacecraft — the first vehicle in history capable of taking humans to multiple destinations in deep space. And while this launch is an un-crewed test, it will be the first peek at how NASA has revamped itself since the end of the Space Shuttle Program in 2011.
While the space shuttle achieved many ground-breaking accomplishments, it was limited to flights in low-Earth orbit (approx. 250 miles high). Its major goal, over the program’s last 10 years, was to launch and assemble the International Space Station, where the risks and challenges of long duration human space flight can be addressed and retired. With the ISS construction complete, NASA is in the process of handing over supply and crew transportation missions to private industry, so NASA can focus on what’s next – deep space exploration. And this first flight test of Orion is a significant milestone on the path to get there.
The flight itself will be challenging. Orion will fly 3,600 miles above Earth on a 4.5-hour mission to test many of the systems necessary for future human missions into deep space. After two orbits, Orion will re-enter Earth’s atmosphere at almost 20,000 miles per hour, reaching temperatures near 4,000 degrees Fahrenheit, before its parachute system deploys to slow the spacecraft for a splashdown in the Pacific Ocean.
While this launch is an important step to taking humans farther than we’ve ever gone before, it is important to note that it also reflects the fact that, after 30 years of space shuttle missions dominating its human spaceflight activities, NASA has reevaluated everything – from its rockets and launch facilities to how it designs and manages its programs. With the Orion spacecraft, NASA wanted to develop a vehicle that could fly for decades with the flexibility to visit different destinations and safely return astronauts to Earth as the nation’s exploration goals evolve. As capable as the Apollo capsule was, the longest round trip mission to the Moon took 12 days. Orion is designed as a long-duration spacecraft that will allow us to undertake human missions to Mars – a two year round trip. In addition, NASA built enough capability into Orion so there is no need for redesign, or to start up a new program, as new destinations are identified.
Innovation and flexibility are also evident with the ground infrastructure. At Kennedy Space Center (KSC) in Florida, NASA has eliminated the ground systems and launch pads that were built specifically for the space shuttle. They have developed a “clean pad” approach that can be used by a variety of launch vehicles. The new streamlined infrastructure will be much more cost-efficient, reducing the time for on-the-pad processing from 30 days, the space shuttle’s timeline, to just five to six days.
The key to launching Orion on deep space exploration missions is NASA’s new “super rocket.” Known as the Space Launch System (SLS), it will be the most powerful rocket in history. The enormous power of the SLS will provide the capability to go farther into our solar system than humans have ever gone before. It will enable launches to other planets in less than half the time of any existing rocket. And, like Orion and the new ground systems at KSC, it is designed to be flexible and evolvable to meet a wide variety of crew and cargo mission requirements.
The SLS is an absolute game-changer for ambitious robotic missions to the outer planets and large unprecedented astronomical observatories. Those missions will build on the discoveries of Curiosity on Mars, the Hubble Space Telescope and its successor, the James Webb Space Telescope, and multiple robotic missions in the years ahead.
Through the development of the SLS and Orion, NASA has learned many lessons on how to streamline the design to make it more affordable than past systems. For the early missions, SLS will use heritage space shuttle hardware for the liquid engines and solid rocket boosters. Also, instead of initially building the “full-up” SLS, NASA has designed it to evolve by planning upgraded upper stages and boosters that future missions will require in the 2020’s and 2030’s. These innovations have allowed SLS to stay on a relatively flat budget throughout its design phase.
Even the way NASA manages its programs has been revamped. The Agency’s management structure for systems engineering and integration has been streamlined to increase communication and enhance decision-making. Strong communication has led to increased precision, and the potential cost avoidance is close to $100 million per year. Evidence of these savings can be seen in the successful completions of Preliminary Design Reviews for Orion, SLS and KSC ground systems.
As a nation, the U.S. has not sent crews beyond low Earth orbit since the last Apollo crew walked on the Moon in 1972. With Orion and SLS, America will have the fundamental capabilities to support missions taking the next steps into deep space, and with innovation and flexibility at the foundation of these programs, NASA is building a “Highway” for deep space exploration that will be sustainable for decades to come.
On May 28, NASA demonstrated that it can land an unmanned spacecraft on a rugged planetary surface in the pitch dark.
The free-flight test was the first of its kind for NASA’s Autonomous Landing Hazard Avoidance Technology, or ALHAT.
The first night free-flight test of NASA’s Morpheus prototype lander was conducted at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida.
Morpheus an unmanned spacecraft capable of carrying 1,100 pounds (499 kg) of cargo powered its way up to more than 800 feet (244 m) into the dark Florida sky at NASA’s Kennedy Space Center using solely ALHAT’s Hazard Detection System for guidance.
The Hazard Detection System, assisted by three light detection and ranging (lidar) sensors, located obstacles such as rocks and craters and safely landed on the lunar-like hazard field a quarter mile away from the NASA Center. Lidar which stands for Light Detection and Ranging is a remote sensing method that uses light in the form of pulsed laser to measure ranges (variable distances) to the Earth.
“The team has been striving for almost eight years to reach this point of testing the ALHAT system in a relevant space-flight-like environment on Morpheus,” said Eric Roback, ALHAT flash lidar lead engineer at NASA’s Langley Research Center in Hampton, Virginia.
During testing, the Hazard Detection System pointed its sensor at the hazard field and made a mosaic of flash lidar three dimensional range images encompassing the hazard field.
Morpheus powered its way up to more than 800 feet into the Florida night sky at NASA’s Kennedy Space Center using solely ALHAT’s Hazard Detection System for guidance.
“The flash lidar performed very well, and we could clearly identify rocks as small as one foot (0.3 m) in size from the largest range that Morpheus could give us, which was approximately a quarter mile,” (402 m) Roback said. “With this sensor we could even find the safest landing site in a pitch black crater.”
The Hazard Detection System then had to stitch the flash lidar images together to a three dimensional map of the landing site, analyze the map and select the best landing sites. Shortly after, the Doppler lidar measured the vehicle’s altitude and velocity to land precisely on the surface. The high-altitude laser altimeter provided data enabling the vehicle to land at the chosen landing site.
“Once this technology goes into service, the days of having to land 20 or 30 miles (32 to 48 km) from where you really want to land for fear of the hazardous craters and rocks will be over,” Roback said. “Then we can land near the truly interesting science and near the critical resources that will be needed for eventual colonization, and we can do it over and over again safely.”
The ALHAT Hazard Detection System brings together expertise from three different NASA Centers. Langley created the lidar sensors. NASA’s Jet Propulsion Laboratory in Pasadena, California, developed the pointing and real-time image processing technology, and NASA’s Johnson Space Center in Houston developed the guidance, navigation and control technology.
The Advanced Exploration Systems Division of NASA’s Human Exploration and Operations Mission Directorate manages ALHAT and Morpheus. Advanced Exploration Systems pioneers new approaches for rapidly developing prototype systems, demonstrating key capabilities and validating operational concepts for future human missions beyond Earth orbit. I would appreciate your support by visiting the advertisers below .
Wow ! Some people want free advertisement on my website but don’t have the decency to check my advertisers, so I can make money Too. So UnAmerican !!! 1
(Phys.org) —All eyes are on ESA’s spaceplane to showcase reentry technologies after its unconventional launch on a Vega rocket this November
Instead of heading north into a polar orbit – as on previous flights – Vega will head eastwards to release the spaceplane into a suborbital path reaching all the way to the Pacific Ocean.
Engineers are forging ahead with the final tests on ESA’s Intermediate experimental Vehicle, IXV, to check that it can withstand the demanding conditions from liftoff to separation from Vega.
Launched in early November, IXV will flight test the technologies and critical systems for Europe’s future automated reentry vehicles returning from low orbit. This is a first for Europe and those working in the field are keeping a close watch.
The research and industrial community have the chance to use this information for progress in atmospheric reentry, oriented towards transportation systems with applications in exploration, science, Earth observation, microgravity and clean space.
Jose Longo, ESA’s head of aerothermodynamics, said, “The technical advancements that have been made since the first experiments with our Atmospheric Reentry Demonstrator in 1996 are huge.”
“This is the first flight demonstration of features such as highly advanced thermal structures: thrusters and flaps that are part of the control system, and the 300 sensors and infrared camera to map the heating all along the spacecraft from the nose to the flaps. These things just cannot be tested in the same way in laboratories.”
“The fact that ESA’s IXV will be launched on Vega makes this a fully European mission,” noted Stefano Bianchi, ESA’s head of launchers development.
IXV weighs almost two tonnes, close to Vega’s lifting capacity, and will be a tight fit inside the vehicle’s fairing.
“In this mission we are not only monitoring the spacecraft all along its autonomous flight, but also tracking its progress back to Earth to a particular spot – this is different to what we are used to,” said Giorgio Tumino, ESA’s IXV project manager.
When IXV splashes down in the Pacific at the end of its mission it will be recovered by ship and returned to Europe for detailed analysis to assess the performance and condition of the internal and external structures.
The actual performance will be compared with predictions to improve computer modeling of the materials used and the spaceplane’s design.
Such is the enthusiasm and interest of industry in the opportunities associated with reentry technologies that the third IXV workshop in ESA’s Technical Centre, ESTEC, in Noordwijk, the Netherlands was packed out last week.
“It is very encouraging to see such interest in this program,” added Giorgio. “Follow-up activities to this mission will build on the current industrial organization and associated technologies will provide opportunities to newcomers.”