Yes! We believe!
We can design the future in our garages.
The plasmonic cavity is a nanostructure originally developed by Stephen Chou of Princeton University to boost solar power efficiency, but he realized it might have applications in emitting light as well as absorbing it. That could mean better screens on your devices.
One of the fundamental problems with LEDs is that they have a solid structure that traps most of the light they produce. On average, only 2-4% of the light generated by an LED actually makes it out. Chou says the use of plasmonic cavities could boost that by four times. There are methods now that can make organic and inorganic LED displays brighter by increasing light output, but they come at the cost of reduced contrast. A plasmonic cavity shouldn’t come with that drawback.
Despite what you would gather from looking at a mess of wires, carpet, and MDF in the back of a Honda Civic hatchback, building speaker enclosures is a pretty complex business. To get the right frequency response, you’ll need to take into account the driver’s resonant frequency, the volume of any internal components, and how well the speaker works when it reaches the resonant frequency. Heady stuff, but when [Rich] at NothingLabs started 3D printing his own speaker enclosures, he realized he could calculate an ideal enclosure automatically. Ah, the joys of OpenSCAD.
For more information click here:
If Team Nixie has its way, drones might someday become the selfie addicts’ best friend. One of the finalists in Intel’s Make It Wearable Challenge, the team is working on Nixie, a camera-toting drone that’s thin, light and flexible enough to wrap around your wrist.
Team Nixie’s goal is to have the small quadcopter uncoil and take flight with a simple gesture. It will then turn around, take a picture of you and then wrap itself back to your wrist. It’s like photographic falconry.
Nanoparticles thousand times thinner than a human hair can release molecules able to repair small breaks in airplanes. This coating that acts as a skin, is a creation of the scientists at the University of Aveiro, Portugal.
"The planes are exposed to harsh environments, with rain, hail and dust storms, for example. This can cause cracks and corrode the structures in a process which spreads quickly, "said Mikhail Zheludkevich to INFO German, who led the research with the Portuguese Mário Ferreira.
For more information click…
Harvard, arguably the most famous Ivy League university on Earth, has a long history of democratization of education; together with MIT and several other elite institutions, they’ve pushed hard to make online learning easy and high in quality. However, one aspect of learning that’s intrinsically difficult to export from the physical school is the physical lab experiment; universities often invest tens or hundreds of thousands in equipment that makes it possible to apply many of the engineering principles explained in digital textbooks. Today, new technologies and a thriving and energetic DIY fanbase mean that even robotics can be farmed out to the cloud, and Harvard recently released its Soft Robotics Toolkit to help with education and entrepreneurship at every level of society.
1. Relay Shield
Trigger external loads like lamps, fans, home appliances, garage doors, and other things, in an easy way using this Relay Shield. Simple and easy to use, the Relay Shield is compatible with the Ethernet Shield, allowing the triggering of distance loads via Internet.
Trigger the relays of RelayShield just by writing pins 7 and 8 of your Arduino, when these pins are at HIGH position, the relay…
TThe X and Y axes behave exactly as they did in the printer. One motor moves the print head along a shaft using a toothed belt, while the other turns a roller that moves the object via friction. I have not had any real problems with the print head axis, but the paper axis is not as reliable. There were no problems when I was simply drawing on nice, flat paper. When milling, however, I produce lots of chips, dust and bumps in the surface. Usually these are able to go through the rollers just fine, but sometimes something gets caught and the board slips slightly. Unfortunately, even a slight shift can completely mess up the result. Here is a picture of a pcb for which there was a little slip that caused the drilled holes to be off. As a result, this pcb is no longer…Continue
An easy way of identifying objects is with RFID tags, because you can use a cheap sensor that's super reliable and doesn't give a hoot what orientation an object is or how bad the lighting is or anything else. The other nice thing about RFID tags (besides the fact that they're dirt cheap and printable and will never give you false positives) is that you can detect them from far away, also using them for localization at the same time.
for more information click…Continue
Fedor Gridnev and Elena Gaidar want to raise the bar for affordable workshop machines with the 5axismaker. It’s a 5-axis milling machine, a 3D printer, a 3D scanner, a water jet cutter and a wire cutter in one.
In theory, you’ll be able to modify the 5axismaker’s function simply by switching its tool head. However, as of this writing, it appears that only the 5-axis milling head has been developed. But even still, an affordable 5-axis machine is a welcome development. In machining, 5-axis means that not only can a machine’s arm move in three dimensions, its milling head rotates on two axes as well. This makes it able to carve complex shapes in one go, whereas 3-axis machines might need multiple passes or multiple machines to create the same object. It can also lead to faster build times and more durable outputs.
Analog cameras are one of the projects of "do-it-yourself" more simple and satisfying that exist. After all, who never made a pinhole camera with a cardboard box in high school? But just try to approach some of the mechanical cameras to the degree of difficulty increases quickly. But when we enter the realm of electronics, using parts from other cameras is, in general, more realistic approach. Despite these difficulties, the photographer Kevin Kandooka did not conform to such a perspective and created Lux, a camera design completely open source.
For more information click…