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412 Posts tagged with the research tag
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T-ray antenna (via Tokyo Institute of Technology)

 

It may seem sometimes that we have exploited the vast reaches of the electromagnetic spectrum, but technologies like WiGig, are showing this notion is not correct at all. T-rays, or electromagnetic waves found in the terahertz band, have traditionally been used for imaging research like X-rays, but now researchers from the Tokyo Institute of Technology are developing a system to apply this technology to ultra fast data transmission.

 

 

The terahertz band actually makes use of the 300 GHz to 3 THz frequencies a range currently unregulated by telecommunication authorities. Using a frequency of 542 GHz the team achieved data transfers of 3 Gb/s using a device called a resonant tunneling diode (RTD). These results are higher than anything achieved so far in the terahertz band.

 

 

This device is revolutionary in the terahertz data transmission because of its small size of only 1 mm-squared and low power necessities.  RTDs are unusual in that the voltage across them can be decreased as the current increases. The RTDs generate waves in the terahertz band by making the diode inside them resonate.

 

 

Due to the energy usage, the Tokyo researchers hope to some day implement them in hand held devices for short-range data transfers. It is likely that terahertz Internet would work only in short distances of up to 10 m (33 ft), and this short range is something the researchers are trying to improve by making their devices resonate at higher frequencies, but this will also require more power.

 

 

It will take a long time before these devices are put in any device consumers can hold, but the future hopes for speeds of up to 100Gb/s, which blows current transfer rates out of the water at 15 greater than 802.11ac Wi-Fi.

 

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Yet another example of how to enter the bigtime with your electrical ideas. Learn form example:

 

MIT Media Lab researchers Jay Silver and Eric Rosenbaum have designed an Arduino input device that lets you use any electricity-conducting material as a touchpad. Called ‘Makey Makey’, the device works by completing an electrical circuit with any conductive material such as vegitables, pencil lead or one's self to interact with the internet or programs on your computer. For example; you could play games Super Mario Bros by connecting the alligator clips to Play Doh buttons or play a piano program using bananas as the keys.

 

The research team designed Makey Makey around an Atmel ATMega32u4 8-bit AVR RISC-based microcontroller that runs Arduino Leonardo boot-loader and uses a USB 2.0 port to interface with a computer running an up to date OS (Windows XP, Vista, 7 and Mac OSX). The touchpad device requires no software to run as the PC recognizes it as a regular input device such as a keyboard or mouse and ,therefore, can run anything that uses those peripheral input devices. The team used Kickstarter to fund the Makey Makey project and was successful in reaching over $190,000 US with a target goal of $25,000. The device sells for $35 US (through Kickstarter) and comes with the board, USB cable, a set of alligator clips and your imagination.

 

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Attendees at the TEDx conference (via TEDxMogadishu)

 

Somalia’s capital city Mogadishu hosted their first ever TEDx (Technology, Entertainment and Design) conference earlier in March of this year. Between 50 and 100 people from diverse backgrounds attended the conference, held at the First Somali Bank, and discussed how to best to rebuild the war-torn capital and bring in new businesses after two decades of conflicts.

 

The forum was also a way of changing the world’s opinion about the country to show that there is more going on than terrorism and piracy in the hopes that new businesses will bring forth foreign investors (capitalists?). The event (called ‘Rebirth’) featured short films, music and speakers that included a University founder, property developers and health-care specialists. Only those who were invited (most of the invitee’s never heard of the TEDx conference) attended the talks due to security concerns, however, the forum was broadcasted over the internet for those who were interested. The talks came with mixed reviews as some thought that rebuilding Mogadishu gave them hope while others thought the focus should have been on rebuilding the country of Somalia itself. Still, no matter how you look at it any step forward is a monumental undertaking and a beacon of hope for that country.

 

 

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There’s good news for those of you who need to destroy your data stored on your SSD’s quickly and efficiently in an emergency situation. RunCore (manufacturer of SSD’s) has unveiled their new line of InVincible Solid State Disc drives which feature two ways to ensure data destruction.

 

The first capability the drives feature is ‘Intelligent’ destruction which over-writes the data and returns the drive back to its factory default setting. According to the company there is no possible way to recover the original data stored on the drive once the drive is reset. This is the rather mundane approach as the second option for data elimination is much more fun and effective (as well as costly).

 

The second option of data deletion the drives feature is self-destruction. Essentially the drive over-volts itself and physically damages the NAND chips inside rendering the drive useless (like a bad CPU overclocking job). To initiate both data erasure and destruction, the InVincible drives feature a two push-button system that is physically attached to the drive with the green button for erasing and a red button for meltdown.

 

These new drives were designed for the military, as well as other companies and institutions where sensitive data is being used or stored, and come in varying sizes and capacities that can withstand a temperature range of -45 to 200 degrees Fahrenheit. The company hasn’t said when the InVincible line of will be available or how much they will go for, but chances are they will cost more than current SSD’s and be available before the year is out.

 

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Dragon capsule (via SpaceX)

 

SpaceX (Space Exploration Technologies Corp.) has recently announced that they will launch their Dragon free-flying reusable space craft on Tuesday May 22nd. This will mark the first time in history that a commercial company has launched a manned space vehicle into space to rendezvous with the International Space Station.

 

The Dragon re-usable space craft was designed using three main components which feature a nosecone that’s used as a shield during lift-off and houses the docking adapter needed to connect to external hatches found on the ISS. The second component featured is the spacecraft itself and was designed to be configured based on payload specifications and houses the avionics, RCS (Reaction Control System or thruster control systems) system, parachutes and other un-pressurized cargo/systems. The third component featured on the spacecraft is the Trunk which is used for un-pressurized cargo, solar arrays and thermal radiators needed to power the craft.

 

The re-usable vehicle will be launched atop of SpaceX’s Falcon 9 two-stage heavy-lift rocket which uses 10 Merlin 1C liquid oxygen and kerosene motors (9 on the first stage and 1 on the second). The mission will bring much needed supplies to the ISS as well as challenge the Dragon in a series of tests designed to test the feasibility of using commercial craft for future missions contracted through NASA and other organizations. If all goes well the launch will take place at Cape Canaveral at 4:15 AM Eastern Time and is expected to return a few hundred miles off the coast of California two weeks later. For those interested in watching the launch head over to SpaceX.com which will start broadcasting 40 minutes prior to launch.

 

Update: The rocket was scheduled to launch this past Saturday, the 19th. However, the team discovered a faulty check valve on the "Merlin Engine." The component was swapped, and not the historic flight will take place this Tuesday, the 22nd. The post was updated to reflect the change.

 

Update 2: The Falcon 9 is now in orbit. The launch was successful.

 

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Digital language translators are used every day. However, there is one dialect that still eludes the automation.

 

 

Engineering students, Ranjay Krishna, Seonwoo Lee and Si Ping Wang, from Cornell University are attempting to develop a very different type of translator, one that helps those who cannot make use of auditory signals. The students have created a sign language translator that converts hand gestures to their corresponding letter symbol and sound.

 

 

This translator is in the form of a glove for the hand and circuitry that fasten to the forearm. The glove itself contains nine flex sensors, four contact sensors, one x-y axis accelerometers and one z-axis accelerometer. The flex sensors are positioned around the upper/lower knuckles and the contact sensors at the tips of the fingers to distinguish between gestures. The accelerometers are needed because some letters vary only on movements of the hands and other letters vary only on the orientation of the hand.

 

 

An ATMega644 Microcontroller is used to analyze the signal from the electromechanical sensors and send transmission requests to the transmitter. The device is made wireless using a Radiotronix transceiver. All of this makes up what they call the Detection Unit, and it is simply strapped to the forearm.  The signal is then received by the base station with outputs the results to an LCD screen as well as transmits the signal to a computer via USB where it can also be outputted as sound through the computer speakers. The students used Matlab, Java and C for all their coding.

 

 

As far as can be seen, this device only converts gestures to letters so more development is needed for those gestures that represent nouns or actions but no doubt this is a start towards a world where we can all communicate a little easier.

 

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ARM Cortex A-9 (via TSMC)

 

Today's processor industry is largely controlled by two companies, Intel and ARM Holdings. Intel produces processors running in most of today’s laptops, desktops, and servers. On the other hand, ARM largely dominates the quickly growing mobile industry. Both are looking to invade each others markets soon by developing processors with high performance and low power consumption, or a strong performance per watt ratio.

 

 

Taiwan Semiconductor Manufacturing Company (TSMC) may have just made ARM Holdings future in the CPU market a bit more promising. At TSMC, they have recently ran a 28nm dual-core ARM Cortex A-9 processor at a max speed of 3.1GHz. The clock speed is 55% higher than present and is about twice as fast as its 40nm counterpart at TSMC. Additionally, the ARM chips also have the advantage of very little heat dissipation, giving them the ability to be densely packed together with one another.

 

 

Two of ARM's many partners include Nvidia and Calxeda, are both looking to produce ARM based processors to compete with Intel. Calxeda is working on producing chips for servers that work more efficiently. Such as implementing overlapping operations during each clock cycle to allow better speed handling. The method gives them an efficiency boost and may work to an advantage for large data retrieving applications such as web hosting.

 

 

TSMC also produces mobile chips for Nvidia. The successful high speed processing test can also mean good things for Nvidia. Nvidia is working on a custom ARM based processor to use in desktops and laptops to compete with Intel. The CPU project dubbed Project Denver has already been in development for some time, but TSMC's latest breakthrough could give the project a large boost.

 

 

The coming products produced from this “competition” should give us some interesting products in the future. Both companies will not easily be letting other companies invade their markets. The server market is worth $50 billion due to the rise of cloud computing and use of social networking. In addition, everyone can see the rise in the uses of tablets and smart phones.  The competition will lead us into the future of processor technology, which will be developed with these two companies paving the way.

 

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A tear-jerking introduction of the technology

 

A cerebrally controlled robotic system is being developed by a team of researchers from Brown University, Harvard Medical School, Massachusetts General Hospital and a host of others could give paralyzed people the ability to use robotic limbs to manipulate objects for themselves. Called ‘BrainGate’, the brain-controlled system allows the user to control a robotic limb through thought. To do this, the team implants a wireless microelectrode array (Neural Interface System) at 4 X 4mm directly on the motor cortex portion of the brain that controls motor function. The series of electrodes (100 in all) on the chip pick up the brain's activity associated with arm movement and sends the signals to a series of computers that use software (unknown at this time) to decode the brains activity. The computers then translate those signals into a series of instructions that tell a robotic arm to move and grasp an object based on the user’s desired intentions. The researchers are presently using two types of robotic arms, which are being continuously developed by DLR Institute of Robotics and Mechatronics and DEKA Research and Development Corporation.

 

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DLR robotic hand/arm concept


The bigger of the two robotic arms being used by the researchers is DLR’s Hand Arm System, which is an external robotic arm made for more robust applications where impacts with heavy objects are nonconsequential (factory and warehouse work?).  The arm consists of a series of mechatronic compliance actuators with 52 drives and over 100 position sensors. The units hand alone features 38 individual tendons with each connected to an individual motor to provide tension and stiffness. The fingers use a similar configuration that uses two separate motors for individual grasping and tension based on the object being manipulated. The arm is so robust that you can actually beat it with a baseball bat without damaging any of the electronics.

 

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Deka arm system

 

The second arm that the team is working with is DEKA Research and Development’s ‘Luke’ Arm (named after Luke Skywalker's mechanical hand). The arm is actually a robotic prosthesis that was designed for amputee patients and was developed as a DARPA tetraplegia project. The titanium Arm was designed to be roughly the same size as a typical human appendage and houses all of its electronics, motors and actuators inside (exactly how and what technology was used is currently unknown). The prosthesis features 18 degrees of movement which was accomplished by using rigid-to-flex circuit boards that were folded into ‘origami’ shapes placed inside the titanium housing. A vibrational motor at the top of the arm lets the user know how much pressure is needed to grasp an object through varying degrees vibration depending if the wearer is holding an egg or a brick.

 

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(All images and video courtesy of Crown Institute for Brain Science)

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PlanetSolar leaving Vieux Port (Via marcovdz)

 

Sometimes a simple idea or dream can lead to massive accomplishments. For Rapheal Domjan, his thought of  building a solar ship did just that.  MS Tûranor PlanetSolar, a unconventional yacht, traveled around the globe in 585 days using only solar energy to power its journey. In a quadruple record breaking feat, the ship stopped at 28 countries along the way promoting solar energy and exploiting its power. The ships demonstration of solar power will lead to many new boating innovations and will revolutionize the way ships are built.

 

 

Craig Loomes and his team designed the 40 person 'PlanetSolar' optimizing energy collection, aerodynamics, propulsion, and materials used. The ship is extremely durable , and light due to its carbon structure and also is the biggest solar powered ship built to date. Additionally, it is 35 meters long and 23 meters wide and boasts a large array of solar panels upon its top, nearly every surface. The solar panels bring in a 22.6% yield that allows for a maximum engine output of 120 kW and an average output of 20 kW. The solar panels charge a row of 6 large lithium-ion batteries that give them a maximum energy density. With the impressive completion of the solar only commute, soon many ships will be equipped with solar powered systems similar.

 

 

Working on the ship brought together a team of diverse people including electrical engineers, physicians, sea captains, and ship builders. Navigating around the globe brought them to many different places along the way. Though most of the stops were around the equator for maximum sunshine harvesting. The global adventure showed just how powerful solar energy can be. For now, the ship is resting at Hercule Harbour in Monaco soaking up rays in the sun. Solar energy is an option that may be too appealing to pass on for the future of sea faring ships.

 

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(Left) Erin Treacy Solovey wearing the Brainput device (Right) Artistic concept (via MIT & Erin Solovey)

 

When it comes to multitasking we as humans try the best we can. While we all have a modicum of ability, some are better than others. It suffices to say, we could all use a boost to become more efficient in our multitude of multitasking efforts, which is why a team of researchers has developed an unconventional solution to the problem. Led by Erin Solovey from MIT’s Humans and Automation Lab, the team has designed a system called ‘Brainput’ that can off-load some of our brains multitasking skills to a computer which is way more efficient at doing multiple things than we could ever hope to be. They system uses a portable low-cost version of a functional magnetic resonance imager called ‘fNIRS’ (functional Near-Infrared Spectroscopy) to measure the activity going on in the brain. The measurements are monitored and processed (using two probes) in real-time using Boxy software (from ISS). The information is then analyzed by a software engine (created using both Matlab and Weka tools) to look for specific patterns associated when the individual is multitasking. When the system has learned these patterns the software kicks in and is able to help the user with the task at hand.

 

A maze was created to test Brainputs effectiveness where a subject had to navigate through using two robots simultaneously. The operator using the fNIRS system was constantly switching back and forth between them and once the software learned the patterns it was able to engage sensors in the robots to help the user with their guidance. While the robots were autonomous, the test subject’s performance did indeed improve. While Brainput is still in its early development stages, it could be implemented into many applications in the future like helping you drive while you’re momentarily distracted or used during surgery with robotic assistance. What if the system could be used wirelessly? If you have an automated laundry machine, you could be slaving at work and washing your laundry at home at the same time! The possibilities are endless.

 

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LED Wishing Star art show (via Tokyo Hotaru)

 

LEDs have been used to create some of the world’s most interesting art. One of the more impressive pieces was showcased at the Licht Festival in Belgium last year, showcasing the cathedral of light. This year brought another large display of LEDs from Panasonic for Tokyo’s Hotaru Festival (Firefly Festival) which celebrates an age old tradition of…well…watching fireflies along river-banks. Panasonic took part in the ‘Symphony of Light’ celebration by releasing 100,000 ‘wishing star’ LED free-floating balls into Tokyo’s Sumida river which was complemented by the illuminated Tokyo Sky Tree. Each ball contains an individual LED which is powered by a tiny solar-cell and rechargeable battery making them fully self-sustainable and reusable. The piece is strikingly similar to what Mother Nature does naturally with bioluminescence.

 

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Bioluminescent bloom of plankton, Maldives (via Doug Perrine)

 

Illuminating art can be found in nature and also uses self-sustainable energy like Panasonic’s ‘wishing star’ LED balls. These however rely on a chemical reactions (chemiluminescence) rather than solar to emit light. Plankton (much like the firefly) use a group of chemicals, known as luciferins, that oxidize and set off a catalyst called luciferase which produces ‘cold light’. Many of this plankton wash up on various shores where lucky on-lookers can appreciate a fantastic light-show like that recently found on Vaadhoo Island in the Maldives. Both of the displays were impressive in their own right, but only one of them was edible which edges Mother Nature as the winner of the illuminated art shows!

 

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More of the Panasonic Tokyo art show:

 

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Engineers become millionaires in less than 30 days; learn from their example.

 

Pebble Technology has recently entered into the Kickstarter hall of fame with their E-Paper watch gaining over $10,000,000 US in funding after only 26 hours of being put on the site. So, what makes the E-Paper watch so popular? It functions as a connection interface between your smartphone and as a wrist-mounted watch with app capabilities, a relatively simple embedded system.

 

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Pebble Smartwatch (via Pebble)

 

The watch can be infinitely customized with different watch-faces (which is always on) and is compatible with both iPhone and Android (2.3 and higher) smartphones with a wide range of apps that let you check e-mail/text messages, caller ID and Facebook/Twitter accounts among others. The E-Paper watch connects to your smartphone through a Bluetooth 2.1+ EDR/4.0 connection and houses an ARM Cortex-M3 microcontroller which has over 8X more Flash memory and 12X more RAM than their previous inPulse Smartwatch. The ‘face’ is actually a high-resolution (144 X 168) black and white e-paper display and has a vibrating motor with a 3-axis accelerometer that’s capable of gestural detection. Charging the watch is the same as you would a smartphone by using a USB cable either for your PC/wall-outlet or mobile charging platform and has a life-span of 7 days before it needs to be re-charged. For those of you who love the water, E-paper is expected to be fully water-proofed to either 3 or 5 ATM (up to 165ft) if you can stand the pressure but make no mistake the watch IS NOT water-proof. Pebble Technology has sold out their first batch of 85,000 units, so the rest of us will just have to wait for E-Paper’s second coming.

 

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Augmented reality give a new way to interact with technology, and ambitious companies are clamoring to be firsts in the field. One of those concepts being developed by the software giant is called MirageTable. The system lets the user interact with objects in both the real and virtual worlds on a table top.

 

For instance; a person could set up a series of virtual bowling pins that could then be knocked over with a virtual ball with only using one pin as a real model to clone the others. The researchers developed MirageTable with the idea that two people could interact with each other in the same space without actually being with one another (think of it as being like Star Trek’s Holodeck). To do this, the researchers used an Acer H5360 3D stereoscopic projector (1280 X 720) to display objects, as well as the other person, onto a curved screen. A Kinect is positioned on top of the screen and captures the objects that are being projected and also tracks the eye movements of each corresponding user. This is to give the corresponding user the correct perspective of what’s in front of them. To view the objects in an augmented reality 3D environment each user wears a pair of Nvidia 3D shutter glasses which makes them appear spatially registered in conjunction with the real world. Any object can be scanned and then cloned for interaction by either of the two parties in both the real and virtual space.

 

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Virtual Bowling (via Microsoft)

 

Free-hand interaction (because no trackers, gloves or other hardware was implemented) with virtual objects in MirageTable was done by using software that takes all real-world objects and represents them as proxy particles, which are constantly updated and used for collision geometry in the virtual world. To process all of the dynamic physics constantly being updated the team relied on Nvidia’s GeForce GTX 580 along with their PhysX game software. This gives each person the ability to interact with both environments at the same time. The researchers admit that there are still limitations to overcome as the Kinect (at present) can only capture the front of an object and not all sides which leaves ‘gaps’ that make for bad texturing. Another problem the team faces is users can only scoop or catch objects from below instead of grasping or picking them up but hope to improve on these limitations with further development. I for one am very impressed at what they have already accomplished with MirageTable. What will its full capabilities be in the future if only as a gaming platform?

 

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Concept models (via FXI)

 

Only a short time after intensely successful Raspberry Pi hit the market, copy-cats came sweeping in to grab some of the frenzy.

 

FXI, a Norwegian hardware and software developer, has recently announced that the company plans to release their USB-stick sized computer later this month (May, 2012). The stick, dubbed Cotton Candy, is designed to connect to any screen and turn it into a personal computer. Does this sound familiar?

 

FXI states that the device can be used to complement mobile devices such as smartphones, tablets and notebooks but can also provide ‘smart’ capabilities to standalone screens such as TV’s. While Cotton Candy may be small in size, it none the less houses some pretty big hardware. Providing the computational power is an ARM Cortex A9 1.2GHz processor that’s coupled with a quad-core ARM Mali -400P GPU to deliver HD content (native support for MPEG-4, H.263/4) with resolutions up to 1080p on HD-capable screens. The device packs 1 GB of dedicated memory and the ability to upgrade to 64 GB through micro-SD cards for increased storage of media. Another impressive feature of Cotton Candy is its plethora of connection options that include USB (male) 2.0, micro-USB (female) 2.0 and HDMI. The software it uses is pretty much rounded out with Android 4.0 (Ice Cream Sandwich) and Ubuntu with a virtualization client for Windows, Linux and Mac (sorry no iOS). Content on-screen can be controlled in various ways with integrated keyboards found on tablets and notebooks, or wirelessly with the devices built-in Wi-Fi and Bluetooth connections that let you use your smartphone as the interface.

 

As it stands right now, only Scandinavians will be able to lay their hands on Cotton Candy at the end of May (2012), while the rest of us have to wait till the end of 2012 and should retail for about $200.00 US. The price is nearly 6 times that of the Raspberry Pi. Are the differences worth the extra $165?

 

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Have you ever been skiing and had to put up with the hassle of trying to answer your cell phone or listen to music? I have not, but Anthony Griesel has. This skier and software developer is recruiting people to contribute to his Kickstarter for a project Called Neva that will facilitate staying connected while outside in the cold elements.

 

 

The idea is simple, to avoid having to fumble with small devices while you are bundled up on the slopes, he has developed a smart ski pole that allows you to manage calls, SMS, and displays other useful information like time, temperature and elevation on a 0.96’’ extra bright OLED touch display placed directly on top of one of the ski poles. Of course, all of the electronics are kept safe inside by a waterproof seal.

 

 

The poles wirelessly communicate with Android and iPhone via a low power Bluetooth using a free downloadable app. This app has more features like using the GPS locations for calculating slope angle and aspect and can also track your route in Google Earth KML format.

 

 

The poles themselves are made with 7075 grade aluminum, which has properties comparable to mild steel. The included rechargeable battery is said to last 3 days between charges and will last about 500 charging cycles. It is charged using a generic USB connection, but this will not be included.

 

 

Griesel hopes that his system will prevent users from losing or damaging their devices, and he hopes that added features will provide valuable information as to avoid dangerous parts of the mountains or avalanche prone areas. He does mention  that there is no substitute for experience and good judgment.

 

 

So far Griesel's kickstarter has raised over $11,000, which is still far from the goal of $100,000 , but there are 21 days to go. The rewards for a pledge are very enticing. A modest contribution of just $150 will earn you your own set of Neva ski poles.

 

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