Nokia, however, has taken another baby step in that direction with the invention of a cell phone that recharges itself using a unique system: It harvests ambient radio waves from the air, and turns that energy into usable power. Enough, at least, to keep a cell phone from running out of juice.
While "traditional" (if there is such a thing) wireless power systems are specifically designed with a transmitter and receiver in mind, Nokia's system isn't finicky about where it gets its wireless waves. TV, radio, other mobile phone systems -- all of this stuff just bounces around the air and most of it is wasted, absorbed into the environment or scattered into the ether. Nokia picks up all the bits and pieces of these waves and uses the collected electromagnetic energy to create electrical current, then uses that to recharge the phone's battery. A huge range of frequencies can be utilized by the system (there's no other way, really, as the energy in any given wave is infinitesimal). It's the same idea that Tesla was exploring 100 years ago, just on a tiny scale.
Mind you, harvesting ambient electromagnetic energy is never going to offer enough electricity to power your whole house or office, but it just might be enough to keep a cell phone alive and kicking. Currently Nokia is able to harvest all of 5 milliwatts from the air; the goal is to increase that to 20 milliwatts in the short term and 50 milliwatts down the line. That wouldn't be enough to keep the phone alive during an active call, but would be enough to slowly recharge the cell phone battery while it's in standby mode, theoretically offering infinite power -- provided you're not stuck deep underground where radio waves can't penetrate.
Nokia says it hopes to commercialize the technology in three to five years.
For teens, there is no greater joy than graduating high school. Shaking off the shackles of education and claiming that hard-fought diploma is truly an epic day. Unfortunately, for several students at Bonny Eagle High School in Maine, their natural exuberance has led to some surprisingly serious problems.
On Friday night, when the senior class was waiting to graduate, excitement began to grow. Students bounced a large inflatable rubber duck. The noise level rose. And then came "the kiss." When called, one student walked on stage to receive his diploma and blew a kiss to his family. The school administrator, clearly not the sentimental sort, sent the student back to his seat ... sans diploma.
The seemingly harsh punishment has sent the Web all aflutter. Searches on "student denied diploma" and "bonny eagle high school" are both through the roof. Additionally, blogs and news papers are chiming in with opinions on whether or not the administration overreacted. The student's mother has given interviews and is quite upset at her son's treatment. According to an article from Fox News the outraged mother said, "A bow, a kiss to your mom is not misbehavior."
But the administrators feel they were just enforcing the rules that students agreed to. At a meeting following the debacle, school superintendent Suzanne Lukas said that "if a student doesn't adhere to the expectations, then the consequences are clearly spelled out."
This isn't the first time that rambunctious (dare we say "fun"?) behavior affected a graduation ceremony at Bonny Eagle. "Four years ago we had some issues with silly string and beach balls," said Lukas.
“Let your kid text during dinner! Let your kid text during school! It pays off,” 15-year-old Kate Moore said Tuesday after winning the LG U.S. National Texting Championship.
After all, she said: “Your kid could win money and publicity and a phone.”
For the Des Moines, Iowa, teenager, her 14,000 texts-per-month habit reaped its own rewards, landing her the competition prize of $50,000 just eight months after she got her first cell phone.
Moore, with a speedy and accurate performance, beat out 20 other finalists from around the country over two days of challenges such as texting blindfolded and texting while maneuvering through a moving obstacle course.
In the final showdown, she outtexted 14-year-old Morgan Dynda, of Savannah, Ga. Both girls had to text three lengthy phrases without making any mistakes on the required abbreviations, capitalization or punctuation. Moore squeaked through by a few seconds on the tiebreaking text, getting the best two out of three. As she anxiously waited for confirmation of her win, tears streamed down her face.
The teen dismisses the idea that she focuses too much on virtual communications, saying that while she has sometimes had her phone taken away from her in school, she keeps good grades, performs in school plays and socializes with friends — in person — on the weekends.
In between, she finds time to send about 400 to 470 texts a day. Among her uses of the text messages? Studying for exams with friends, which she says is better done by text because she can look back at the messages to review.
The finalists, all 22 or younger, were among 250,000 people who tried to get spots in the competition. Some won their spots at the Manhattan finals by being the fastest people to text responses to televised ads.
It’s the third year for the texting competition, sponsored by LG Electronics Inc.’s mobile-phones division. But it’s the first time that it was held at a flashy sound stage with an illuminated platform and surrounded by TV cameras. LG, based in Seoul, South Korea, is considering using the footage in a televised special of some kind.
