Licensed & Insured Residential and Commercial Electrician • Licensed & Insured Residential Plumber • Serving the Birmingham, AL area • 24/7 Emergency Service Available

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Amazing new technology powers wearable devices with our own sweat.

A team of engineers from the University of California, San Diego has developed remarkable stretchable power cells that take energy from your own sweat and power electronics, like LEDs and even Bluetooth radios! New technology powers devices with sweat
For a field that has been struggling to come up with devices that are powerful enough and stretchable enough, these epidermal biofuel cells are a major breakthrough. The breakthrough was achieved thanks to a combination of extremely clever chemistry, highly advanced materials and electronic interfaces. This combination let them build a highly stretchable, electronic foundation using lithography and screen-printing to manufacture 3D carbon nanotube-based cathode and anode arrays.
The biofuel cells are equipped with an enzyme that oxidizes the lactic acid present in human sweat to generate current. This turns the sweat into a source of power. Because the concentration of lactic acid in a person's sweat gets diluted over time, the team is exploring a way to store the energy produced while the concentration of lactate is high enough and then release it gradually.So future work is needed before this technology can be considered a full success. 

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Latest Tips

Don't just throw away old electronics in the trash.

Monday, July 30, 2018

Once something is broken or no longer of any use, it usually ends up in the garbage.  So when your old cellphone finally takes its last breath, should you toss it in the bin along with the leftovers? No! Sure it's easy enough to sneak in an old phone with your daily trash intake to the curb, but that decision could cost the environment more than you think.

Finish reading Don't just throw away old electronics in the trash....

Do you know what to do near a downed power line?

Monday, July 2, 2018

Downed power lines are hazardous, even deadly.  You should never touch a downed power line and always assume that the downed line is live.

Finish reading Do you know what to do near a downed power line? ...

About John's Electric

Linn Park Fountain, Birmingham, AL

John's Electric Inc. is a family owned and operated electrical contractor business that proudly provides electrician services in Birmingham, AL and the surrounding areas such as Hoover, Homewood, Chelsea, Vestavia Hills, Pelham, Alabaster, Trussville, and Mountain Brook. John's Electric provides residential and commercial electrical solutions at competitive rates. We have been in this line of work for 30 years, giving us not only experience but expertise as well. You can depend on us. We are a state licensed electrician (#03875) for your protection.

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What others say about John's Electric Service

Very good and professional. Solved problem and went the extra mile to fix another issue.

Bill White
Google

Aubrey and Jeremy were awesome! I have an old house with old wiring and needed to install a new Range and above Range Microwave. They worked very hard to run new wiring to the breaker box in the basement, installed new plugs, and installed the appliances with great care.

Steven T.
HomeAdvisor

I was very satisfied with the service. I drilled a hole in my main service line on a holiday, and they had me up and running the same afternoon. Thanks!!

davidcritt
Yellow Pages

Aubrey was very helpful, explaining things as he went and making sure that everything worked good before he left.

Lisa H.
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