Tuesday, 17 March 2015

Jumbo Waterproof Speaker

Whether you want to sing in the shower or enjoy a playlist on the beach, water really shouldn’t stop the music. The waterproof Jive Jumbo Bluetooth speaker is designed to keep the tunes flowing even when submerged, and it is currently on 42% discount.
The speaker’s iPX7 rating means it can withstand a three-foot dunking for up to 30 minutes, and the built-in suction cup offers a firm footing on any flattish surface. The Jive’s internal battery lasts for up to 12 hours of playback, and Bluetooth connectivity lets you leave your phone in a dry spot. The wireless range is 33 feet, so it is even good for a pool party (not long now…). It also has a microphone for making and taking calls, and there is a useful one-touch redial option on the side of the speaker.

Saturday, 14 March 2015

Japan takes a step towards beaming solar power to Earth from space

The ultimate goal of the project is to relay power from orbit thousands of miles above Ear...
The ultimate goal of the project is to relay power from orbit thousands of miles above Earth
A successful ground test of a system designed to ultimately collect solar power from orbit and beam it back down to Earth was announced in Japan this week by Mitsubishi Heavy Industries. The wireless power demonstration saw 10 kilowatts sent over microwaves from a transmitting unit to a receiver 500 meters (1,640 ft) away.
Mitsubishi says the reception of the power sent through the air was confirmed through the illumination of lights using part of the power transmitted. The company did not confirm what percentage of the power sent actually made it to the receiver, however, which is a key question as the ultimate goal is to relay power from orbit thousands of miles above Earth.
Previous tests of the technology yielded only a tiny fraction of the power sent from one Hawaiian island to another.
No one is expecting a huge orbiting solar farm and corresponding massive microwave power beam to be ready overnight, of course. Mitsubishi says that the successful test conducted at the company's Kobe Shipyard and Machinery Works has verified the viability of the concept, and that the transmission distance and power load mark new milestones for the technology.
Perhaps just as important, the testing confirmed the performance of the control system that will regulate the microwave beam itself. This is a big deal, because if the proposed microwave connection between an orbiting power station and large receiver units on a man-made island in Tokyo Bay were ever fired up at full power, it would be strong enough that workers would need to wear protective clothing – not the kind of thing you'd want to zap 100,000 people wandering through Shinjuku with by accident.
The final product will receive power from space on a small island (Image: Japan Space Syst...
The testing was conducted with Japan Space Systems, a quasi-governmental non-profit carrying out the solar power wireless transmission project.
While successfully beaming power from the sun to Earth via an orbiting system of collectors at a large scale may be decades away, cost billions of dollars and require the invention of some new technologies, the investment can be justified for a country like Japan with limited natural resources, that's still reeling from the Fukushima nuclear disaster.
Mitsubishi also sees less ambitious applications for the technology, like wirelessly powering electric vehicles on Japan's roads.
For full details on how Japan hopes to harvest the sun's energy from space

Friday, 13 March 2015

Save 77% On The Wireless Bluetooth Cloud Buds


The nightmare of tangled wires strikes all too often when you want to listen to your favorite tunes. The Bluetooth Cloud Buds fix that by going wireless, and they offer some other great features, too. Currently, they are on 77% discount.
The Cloud Buds offer a wireless range of around 30 feet, so you can pretty much stick them in and concentrate on your music. The sound on offer is crystal clear, in part thanks to a noise-canceling outer shell, although it also helps that you get multiple sizes of buds to ensure a snug fit. In use, the headset is surprisingly lightweight, and there are optional ear hooks, so most ears should be well suited. With a microphone built in, you can use the Cloud Buds as a handsfree kit, with the remote control offering quick access to answering calls and switching tracks. If you’re looking for an in-ear upgrade, check out the link to grab these buds at the reduced price.

Thursday, 12 March 2015

New self-cleaning paint stands up to wear and tear

Dyed-water droplets sit on the surface of treated cotton wool (Photo: Oli Usher/UCL)
Dyed-water droplets sit on the surface of treated cotton wool (Photo: Oli Usher/UCL)
How would you like to be able to wash your car by just hosing it off – no soap, scrubbing or drying? You may be able to in the not-too-distant future, thanks to research being led by a team at University College London. Drawing on earlier research, they've developed an ultra-hydrophobic (water-repelling) paint that can be applied to a variety of surfaces, and that stays on once applied.
The active ingredient in the paint is coated titanium dioxide nanoparticles. These cause liquid to bead up and roll off the paint, instead of clinging to it. As those droplets roll across the painted surface, they suck up any dirt, viruses, bacteria or other non-liquid contaminants that are in their path.
In order to allow the paint to stick to surfaces, it's combined with different types of adhesives, depending on the application. It can also be applied tothose surfaces in different ways. In the course of their research, the scientists used an air brush to apply it to glass and metal, a syringe to put it onto paper, and they simply dipped cotton wool into the paint.
Durability has been a limiting factor in many previously-developed self-cleaning paints. In this case, however, the paint remained adhered to the various surfaces and retained its hydrophobic qualities, even after being exposed to conditions designed to simulate real-world wear and tear (this included being scuffed with sandpaper and scratched with a knife). It also kept working after exposure to oil – again, something that can't be said for all of the previous attempts.
Existing technologies such as the Ultra-Ever Dry coating, while relatively robust, do need to be reapplied every few months to a year, depending on the conditions.
"We’ve shown it is possible to make a robust self-cleaning surface," said UCL inorganic chemist Prof. Claire Carmalt. "We used materials that are readily available, so our methods can be scaled-up for industrial applications."
Colleagues from Imperial College London and Dalian University of Technology (China) also took part in the research. A paper on the paint was recently published in the journal Science. You can see the paint shrugging off liquids, in the video below.
Scientists at the University of Rochester, incidentally, have developed a laser-etching technique to render metal surfaces permanently hydrophobic – no chemical coatings required.

Review: Phantom 2 Vision+ – the world's best selling camera drone


The Phantom 2 Vision+, the first true out-of-the-box stabilized camera drone (Photo: Noel ...
The Phantom 2 Vision+, the first true out-of-the-box stabilized camera drone ..this made easy  your work
DJI's US$1100 Phantom 2 Vision+ is the best selling cameray for your  drone on the market – and with good reason. It's a relatively affordable, relatively friendly and relatively easy to fly quadcopter that arrives nearly fully assembled and is easy enough for a beginner to operate straight out of the box, even if we recommend you fly something cheaper first to get the hang of things. It has a decent quality, tilt-controllable camera that shoots 1080p HD video footage and 14 megapixel photos, and the camera delivers smooth footage thanks to a multi-axis stabilizing gimbal. But it has a bunch of other tricks up its sleeve.
If you want to take aerial footage from a quadcopter, DJI's Phantom 2 Vision+ (P2V+) is an excellent place to start. It's basically the cheapest all-in-one, ready to fly solution with a properly stabilized camera on the market – and if you've tried to take footage with an unstabilized camera drone, you'll realize why that stabilizing gimbal is so important.

Getting started

Calibrating the compass takes about 15 seconds once you've got the hang of it, and then you're ready to fly. Accessing the camera through the smartphone app, you can see what the drone sees as you fly. 
Out of the box, the P2V+ is simple to get going. Pull the packing plastics off the camera gimbal, twirl the rotors on, charge up the battery and you're just about ready to go. It connects to a simple controller unit and range extender, and sends out a Wi-Fi network you can join with your smartphone through the DJI Vision app.

The Phantom 2 Vision+ controller and range extender (Photo: Loz Blain/Gizmag.com)

Flying the Phantom 2 Vision+

Ease of use is one of the P2V+'s key selling points and as such, once it's in the air, it hovers steadily in place thanks to GPS stabilization, even in moderate winds. Once you're hovering in a safe spot (away from trees, power lines, buildings or anything else you don't want to crash into), you can look down at your smartphone screen and start driving the camera through the app.
The flight control scheme is standard mode 2 flying out of the box. The left thumbstick controls throttle and yaw, the right does pitch and roll. It the drone gets out of range, or the battery level gets too low, or the controller gets shut off, the P2V+ will fly to a predetermined altitude and then return to its launch point and land autonomously, which is one heck of a relief.
There's a couple of advanced flying modes, unlockable through a PC interface, that make excellent sense. Once unlocked, you can access course lock and home lock modes through a small switch on the top left of the controller.
Course lock mode changes the control scheme such that the right stick is locked to the orientation the drone was facing when it was first switched on. This means that no matter which direction the camera is facing when it's in the air, pushing the stick forward will move it in the same compass direction. Given how difficult it can be to get your head around flying a drone in standard mode 2 configuration as its orientation changes, this mode is super handy for novices, as well as for getting tricky camera shots.
Gizmag's Loz Blain flies the Phantom 2 Vision+ (Photo: Noel McKeegan/Gizmag.com)
Home lock mode comes in handy if the Phantom flies out of view and you lose track of where it is. Engaging home lock, you simply pull back on the right stick and the drone will fly back in the direction of its home point. Once it's within 20 meters of home, it should be visible again and you can resume normal control. Another nifty trick that helps you return the Phantom to the launch point without having to switch the controller off.
Course lock makes the Phantom extremely easy to fly, home lock is a nice emergency backup feature. Both come in very handy.
The P2V+ flies for up to 25 minutes on a single battery. You can maximize your flight time by moving steadily and not doing a lot of quick acceleration, but even with aggressive use you're still in the air for well over 15 minutes. Wi-Fi range is up to 700 meters in optimal conditions, but where there's trees or buildings in the way the signal can easily be broken. Maximal height is locked at 120 meters (on the Australian version we tested, which complies with local aviation law), but this restriction can be removed by connecting the Phantom to a PC.

Groundstation – autonomous flight mode

By agreeing to a disclaimer in the mobile app, you can enable groundstation mode. This uses your phone's internet connection to download Google Maps data about the area you're in to show a top-down view of the area.
You can then tap on the screen to set multiple waypoints for the Phantom, choosing an altitude for each waypoint and a flight speed between them, with a maximum distance of around 5 km of flight, or however much less than that the software calculates your battery will take you. The drone will launch itself and move between the selected waypoints, leaving the operator free to control the camera. It's a handy way to capture a complex moving shot.
Red zones on the map show no-fly zones – around airports and helipads – that are off limits. The drone can either complete its trip and come home to land itself, or you can assume control again by flipping the right hand switch on the controller down then up again.
Sample aerial photograph from the Phantom 2 Vision+ - edited to correct fisheye effect, as...

Video and photo capabilities

The key selling point for the P2V+ is its gimbal-stabilized wide-angle camera, which takes 14 megapixel photos, as well as 1080p, 30fps HD video. We found it to have a similar level of performance to a GoPro Hero 2. Footage is not as rich as on the GoPro 3+ or 4, and the Vision's inbuilt camera doesn't support 4K video or high framerates beyond 50fps. That said, the Vision can output photos in DNG RAW for editing, which is great, and while there's noticeable jitter and aliasing issues in the video, and sideways panning needs to be done extremely slowly, the video is otherwise sharp, and usable for lower end production, particularly once you run a filter to remove some of its fisheye effect.
Controls are fairly limited. You've got the ability to adjust ISO, exposure compensation and white balance, but there's no manual mode for precise exposure control using shutter speed or aperture. The video stream back to your smartphone stream is low-res and blocky – once you're up high it's difficult to make out any real detail on the ground below until you grab the SD card out and review your footage.
As a filmmaking tool, you'd probably want to step up at least to the 4K DJI Inspire (which streams back 720p footage to the screen, offers the ability for a second operator to control just the camera, and has a significantly better image sensor) or a dedicated large octa-copter rig, but for getting into aerial photography or just for pure enjoyment, the P2V+ is a wonderful place to start.
In the latest version of the P2V+ controller, as tested, you can control the pitch angle of the camera through a small scroll wheel on the left shoulder of the controller. This is a really useful update, as previously you could only control the camera angle by taking one hand off the controller and fiddling with controls on-screen, or using the smartphone's accelerometer to tilt it. The accelerometer tilt control was a little too laggy to be useful, but the scroll wheel does a great job if you're gentle with it.
We'd like to see more of the camera controls built into the main control unit – starting and stopping video, for example, requires you to take one hand off the controller to use the touch screen on your phone or tablet. But either way it's simple enough to use and the footage is stable and looks great.
The Phantom 2 Vision+, showing the stabilizing gimbal and camera beneath the drone (Photo:...

Overall

Just a couple of years ago, you needed to be pretty handy with a soldering iron to put a camera drone into the air, let alone a gimbal-stabilized camera on a GPS and compass-stabilized drone. The P2V+ is deservedly a huge seller because it puts smooth aerial video and photography within the reach of beginner pilots, straight out of the box in a well-integrated and thought out package.
We're still gonna recommend that beginners pick up a cheap practice drone like the Syma X5 before jumping straight to the vastly more expensive Phantom. Crashes are a part of learning, and they're a lot easier to take on a US$40 toy than on a US$1100 Phantom with a delicate gimbal system and a lot more weight to do damage with. If you can fly a Syma or Hubsan mini drone, you'll find the P2V+ a breeze to operate.
Rumors abound of an upcoming camera drone from GoPro, as well as a possible Phantom 3 debut in the coming months, but as of right now, the rock solid, simple and powerful P2V+ represents.

Sunday, 8 March 2015

Your TV is listening to you, apparently


It has been revealed that Samsung's Smart TV can listen to your conversations, something which a few people have associated with the telescreens in George Orwell's classic novel 1984.
According to a story in the Daily Beast, Samsung's Smart TV can record conversations when the voice control feature is activated and can then share those conversations with 'third parties'
It's all to do with how the system delivers the content requested by the viewer. If you 'ask' the Smart TV for a particular programme, the device passes that request via the internet to a server, which searches for the requested content and delivers it.
Not surprisingly, Samsung says the data isn't retained or sold on. But it would, wouldn't it?
So if you have the voice recognition feature activated and are making a transaction on your phone, the TV would be able to capture your card details and broadcast them.
It seems like another of those 'good ideas' which companies have, but which aren't thought through.
A while back, gestures were being proposed as the next way to control your TV. Now, it seems, we have to talk to them. What is wrong, you wonder, with using a good old remote?
- See more at: http://www.newelectronics.co.uk/electronics-blogs/your-tv-is-listening-to-you-apparently/73680/#sthash.QJy8B1GD.dpuf

Saturday, 7 March 2015

Chip allows one wireless device to be charged by another


IDT has unveiled Wireless PowerShare technology at Mobile World Congress. The innovation is said to allow one mobile device to be charged wirelessly from another.
The multimode, multifunction chip is a receiver and transmitter that is said to support all major wireless power standards for magnetic resonance and magnetic induction charging.
The device, a member of IDT's P9700 series, works with the three leading standards: the Alliance for Wireless Power (A4WP); the Power Matters Alliance (PMA); and the Wireless Power Consortium. It delivers from 5 ato 10W and integrates a proprietary mode that provides flexibility for OEMs.
"Consumers have been asking why, with all the remarkable advances in electronics, we remain tethered by power cords," said Arman Naghavi, IDT's vice president of analogue power technology. "Wireless PowerShare technology is a big leap in the right direction, allowing devices to charge one another, free from the tangle of wires."

Friday, 6 March 2015

Transparent Smartphones


new electronic inventionsInventors, Jung Won Seo, Jae-Woo Park, Keong Su Lim, Ji-Hwan Yang and Sang Jung Kang, who are scientists at the Korean Advanced Institute of Science and Technology, have created the world's first transparent computer chip.
The chip, known as (TRRAM) or transparent resistive random access memory, is similar to existing chips known as (CMOS) or metal-oxide semiconductor memory, which we use in new electronics.
The difference is that TRRAM is completely clear and transparent. What is the benefit of having transparency?
"It is a new milestone of transparent electronic systems," says Jung Won Seo. "By integrating TRRAM with other transparent electronic components, we can create a total see-through embedded electronic systems."
The technology could enable the windows or mirrors in your home to be used as computer monitors and television screens.
This technology is expected to be available within 3 to 4 years.

High Speed Camera Used In Space Adapted To Scan Skin Cells


The European Space Agency (ESA) is adapting a high-speed camera used to scan vegetation from space to spot changes in human skin cells to help diagnose skin diseases.
Proba-V (v is for vegetation) is a mini satellite for vegetation-scanning and has an advanced digital infrared sensor used to map land cover and vegetation growth every two days. But today, researchers from ESA say they can adapt the technology for non-space applications. The specialized sensor was made in partnership with the Belgium company, Xenics.
Researchers found that if you mount the camera on a medical scanner, the sensor in Proba-V helps doctors look deeper into human tissues and hopefully detect skin diseases earlier.
To put the Proba-V’s detailed scanning into perspective consider this: from space the infared sensor in the camera can detect the difference between two green trees down on earth — whether one is growing and the other is unhealthy. To the naked eye, we would just see two green trees. The camera sees light we can’t see by looking in the shortwave infrared range.
ESA says that Proba-V’s ability to ‘see the unseeable’ makes the camera the perfect product for commercialisation in the medical, solar and manufacturing industries.