Electricity

Whether it’s touch-sensitive skin for robots, clothing made from smart fabrics, or devices with bendable displays, stretchable electronics will be playing a large role in a number of emerging technologies. While the field is still very new, stretchable electronic devices may have come a step closer to common use, thanks to research being conducted at North Carolina State University. Scientists there have recently developed a new method for creating elastic conductors, using carbon nanotubes. Read More

Israel's Eco Wave Power is just entering the second phase of proving its new wave energy harvest and conversion system that's claimed to produce cheaper energy than existing coal-fired power plants. Energy is captured by the influence of rising and falling waves on two proprietary float designs called the Wave Clapper and Power Wing, which are installed on existing, stable structures. The floats are said to be capable of gathering energy from both high and low waves, which is fed through undersea cabling to a land-based power plant for conversion to usable electricity. Read More

The spring-loaded PumPing Tap concept that would eject electrical plugs from an outlet when not actively drawing electricity attracted a fair share of criticism from readers when we looked at it earlier this week. Bracktron has come up with a more practical solution with its line of GreenZero chargers that detect when the device being charged is unplugged or fully charged and automatically shut off to eliminate stand-by – also known as vampire power – consumption. Read More

For years, environmentalists have warned that keeping electronics plugged in all the time wastes energy, even when a device is switched off. Even for less green-conscious consumers this lost energy can add up on the electric bill each month, so disconnecting unused devices is really a good habit for anyone to get into. But let's be honest, it's hard to remember to unplug each gadget every single time it's used. To help with this, designers have created the PumPing Tap, a concept electrical socket that can detect an unused power cord and physically eject it from the wall. Read More

Wind-power has rapidly evolved over the last decade to become a key part of the alternative energy mix with towering rows of turbines now dotting horizons all over the globe. One of the drawbacks to the conventional windmill approach is that they are still low to the ground, so why not go to where the winds are stronger and more consistent - up. Like the Magenn Air Rotor System, KiteGen technology is aiming to do just that. The system generates energy by guiding tethered kites over a predefined flight path in order to rotate a ground based turbine and, while only in the testing and planning phases, it looks to be a promising solution. Read More

A team of scientists from Montreal’s McGill University have successfully formed a circuit between two wires which were separated by a gap of only 15 nanometers – that’s about the width of 150 atoms. It is reportedly “the first time that anyone has studied how the wires in an electronic circuit interact with one another when packed so tightly together.” Along with being one of the smallest electronic circuits ever created, it has also led to a discovery that may have big implications for the world of computing. Read More

Calling all Tesla fans! Electrical engineer Greg Leyh and his team at the Lightning on Demand organization (LOD) in California are raising the funds necessary to build the world's largest twin Tesla coils (ten stories high, about 120 ft/37 m) that will be capable of generating electric arcs more than 200 feet (60 m) long. Dubbed the "Lightning Foundry," the project currently consists of a working 1:12 scale prototype. When complete, a towering pair of coils will fill a football field-sized area with massive electric bolts that researchers hope will reveal some of the mysteries of this beautiful but deadly force. Read More

Although it can be considered as a basic human need alongside food, water and shelter, 1.6 billion people all over the world have no access to stable and safe source of light. It's a situation that two bright young Architecture graduates are aiming to combat with the LuminAID solar-powered lantern. Like the Solar Pebble initiative, the LuminAID lantern is designed to address dependence on kerosene lamps in the developing world and its extremely lightweight and easy to transport inflatable design is also targeted at use in disaster relief situations ... plus it makes a very handy addition to your camping kit. Read More

Can you imagine the power of 50,000 steps a day? Well, Laurence Kembell-Cook, the director of Pavegen Systems imagined it and created Pavegen tiles - a low carbon solution that aims to bring kinetic energy harvesting to the streets. Not surprisingly, the tile is receiving a great deal of attention as a solution for power-hungry cities with a lot of walking traffic. Read More