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Archive for the ‘Greener technology’ Category

Better, brighter LEDs- inspired by fireflies.


By mimicking the jagged structure of a lightning bug’s “lantern” in a layer on top of existing LEDs, the amount of light from the semiconductor device can be increased up to 55 percent.

Buggy...!

 

Much of the light produced by LEDs gets reflected back into the device due to large differences between how light travels through the LED materials compared to air. This reduces “drastically the efficiency of LEDs,”

Here is the interesting part, similarly jagged material that they added to a standard gallium-nitride LED increased the amount of light that shone from the device by up to 55 percent!

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Greener technology

An electronic flowerpot monitors your gardening!


For some, this may seem like a superfluous product since many varieties of houseplants don’t require an excessive amount of care. But for those with a history of killing their flowery friends, or those whose travel schedules don’t permit regular watering, Click & Grow could be a helpful solution.

Each flower-pot is wired with sensors, a processor and software that checks on the plant and provides it with fertilizer and water as needed. Each pot uses a combination of hydroponics and aeroponics, and still requires an occasional refilling of the water reservoir, about once a month.

A light on the flowerpot illuminates when the reservoir requires refilling, and the pot uses a pump to nourish the roots over time. While the pot takes care of water and fertilization, it’s up to the owner to find suitable lighting. The company recommends indirect sunlight.

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technology

 

 

Flexible batteries!


Professor Keon Jae Lee  created a solid-state flexible battery that retains is energy level when folded, spindled, and or mildly mutilated. The battery could mean the future e-readers and tablets could be paper-thin and partially foldable, encouraging  new device designs.

These rechargeable lithium-ion batteries are actually printed on a thin-film. Applying battery material to rollable displays has been a big problem for the gadget manufacturers thus far but this breakthrough could change the way we think about surfaces, screens, and case materials.

 

 

As you can see from the video, the thin-film battery can be bent over and over again without reducing voltage output.

A microalgae lamp that absorbs CO2!


Wow! So the future is safe? But here is the bad news that it ‘may’ encourage deforestation! these microalgae-powered lamps, invented by French biochemist Pierre Calleja, could absorb a ton of carbon from the air every year. That’s as much as 150 to 200 trees.

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Greener technology

Power generation by urine?!


This eco-friendly energy source cranks out six hours of electricity for every liter of human bodily fluid by separating the excretion’s hydrogen with an electrolytic cell.

Though it looks promising, it  will need more than its limited safety measures before you’re able to pick one up at your local hardware store. However, if this can help us save a few bucks on our energy bill! 😛

The original story appeared in http://makerfaireafrica.com

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Greener technology

A chance to go eco-friendly just by a software!


Hm..here comes a technology(a web site) offering the technology to make the earth more greener.It’s just like the windows application softwares like word,Powerpoint and others.In short, it is a  plug-in that automatically optimizes documents for printing in order to save paper.

Time to save earth

Time to save earth

To be simple, this is a plug-in that fills the empty spaces of the spaces logically and beautifully reducing the paper consumption.Um..fitting the image I wanted has been a heck difficult for me so I’m giving the link so just check that out for understanding the technology a bit better. 🙂 Click ‘here’.

Amazing. Isn’t it? Share your views with me….

I recommend you the following categories : Technology,  Gadgets , Entrepreneurship

iRing controls the ipod….



With a stylish design and wireless Bluetooth connectivity with your iPod and iPhone, the iRing allows you to control playback and volume on any of your Apple media devices. iRing features a bright OLED status display with touch-sensitive function strip, and a rechargeable battery life of up to 2 days. Conveniently recharge your iRing using the included cradle. Its minimal size and unique ring-lock mechanism make it an ideal companion for charging and storing your iRing.

New Battery Could Be Just What the Grid Ordered…!!


Eight units of Aquion’s prototype batteries can be strung together to create a 15-volt module, which can then be stacked and connected to make even larger modules.

Stepts to greener world.....

Utilities need cheap, long-lasting ways to store the excess energy produced by power plants, especially as intermittent power from solar and wind farms is added to the mix. Unfortunately, the batteries available for grid-level storage are either too expensive or don’t last for the thousands of cycles needed to make them cost-effective.

A new battery developed by Aquion Energy in Pittsburgh uses simple chemistry—a water-based electrolyte and abundant materials such as sodium and manganese—and is expected to cost $300 for a kilowatt-hour of storage capacity, less than a third of what it would cost to use lithium-ion batteries. Third-party tests have shown that Aquion’s battery can last for over 5,000 charge-discharge cycles and has an efficiency of over 85 percent.

The company has now received $30 million in venture capital to step up manufacturing of its sodium-ion batteries. The new technology could be the cheapest way to store large amounts of energy for the power grid using batteries, says Jay Whitacre, the company’s founder and chief technology officer.

Aquion’s battery uses an activated carbon anode and a sodium- and manganese-based cathode. A water-based electrolyte carries sodium ions between the two electrodes while charging and discharging. The principle is similar to lithium-ion, but sodium ions are more abundant and hence cheaper to use. Compared to solvent-based electrolytes, the aqueous electrolyte is also easier to work with and cheaper. Even better, the materials are nontoxic and the battery is 100 percent recyclable, Whitacre says.

Grid-scale trials of the technology are next. Aquion has started shipping pre-production battery prototypes to off-grid solar power companies. Next month, a 1,000-volt module will go to KEMA, a Dutch energy consulting and testing outfit, which has a facility outside Philadelphia.

Utilities use stored energy to meet electrical demand during peak usage periods, a practice called peak shaving, which helps keep the grid reliable and efficient and electricity prices low. Whitacre says Aquion’s battery is designed for these grid applications. “It’s very well-suited for off-grid solar and wind support, and also for peak shaving,” he says. “It’s two very different applications, and our battery has been shown to be effective in both.”


John Miller, an electrochemical capacitor expert and president of consulting firm JME in Shaker Heights, Ohio, says Aquion’s battery could be the cheapest of the various battery technologies vying to provide grid storage. He compares it to today’s most common grid storage technology, pumped hydro, which accounts for 95 percent of utility-scale energy storage. Pumped hydro involves moving water to an elevation when electricity demand is low, and releasing that water through turbines during peak periods. It is, however, limited by geology and space, and pumped hydro systems take many years and millions of dollars to build. Utilities are now starting to look at batteries because they can be delivered in months and, in principle, can be sited anywhere.

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