If phone calls and web pages can be beamed through the air to portable devices, then why not electrical power, too It is a question many consumers and device manufacturers have been asking themselves for some time. But to seasoned observers of the electronics industry, the promise of wireless recharging sounds depressingly familiar. In 2004 Splashpower, a British technology firm, was citing “very strong” interest from consumer-electronics firms for its wireless charging pad. Based on the principle of electromagnetic induction (EMI) that Faraday had discovered in the 19th century, the company’s “Splashpad” contained a coil that generated a magnetic field when a current flowed through it. When a mobile device containing a corresponding coil was brought near the pad, the process was reversed as the magnetic field generated a current in the second coil, charging the device’ s battery without the use of wires. Unfortunately, although Faraday’s principles of electromagnetic induction have stood the test of time, Splashpower has not — it was declared bankrupt last year without having launched a single product.
Thanks to its simplicity .and measurability, electromagnetic induction is still the technology of choice among many of the remaining companies in the wireless-charging arena. But, as Splashpower found, turning the theory into profitable practice is not straightforward. But lately there have been some promising developments.
The first is the formation in December 2008 of the Wireless Power Consortium, a body dedicated to establishing a common standard for inductive wireless charging, and thus promoting its adoption. The new consortium’s members include big consumer-electronics firms, such as Philips and Sanyo, as well as Texas Instruments, a chipmaker.
Fierce competition between manufacturers of mobile devices is also accelerating the introduction of wireless charging. The star of this year’s Consumer Electronics Show held in Las Vegas was the Pre, a smart-phone from Palm. The Pre has an optional charging pad, called the Touchstone, which uses electromagnetic induction to charge the device wirelessly.
As wireless-charging equipment based on electromagnetic induction heads towards the market, a number of alternative technologies are also being developed. PowerBeam, a start-up based in Silicon Valley, uses lasers to beam power from one place to another.
It now seems to be a matter of when, rather than if, wireless charging enters the mainstream. And if those in the field do find themselves languishing in the disillusionment, they could take some encouragement from Faraday himself. He observed that “nothing is too wonderful to be true if it be consistent with the laws of nature.” Not even a wirelessly rechargeable iPhone.
What’s the final goal of the Wireless Power Consortium

A:To turn the Faraday’s theory into profitable practice. B:To find ways for the consumer-electronics industry. C:To integrate consumer-electronics firms and chipmakers. D:To promote a common standard for inductive wireless charging.

If phone calls and web pages can be beamed through the air to portable devices, then why not electrical power, too It is a question many consumers and device manufacturers have been asking themselves for some time. But to seasoned observers of the electronics industry, the promise of wireless recharging sounds depressingly familiar. In 2004 Splashpower, a British technology firm, was citing “very strong” interest from consumer-electronics firms for its wireless charging pad. Based on the principle of electromagnetic induction (EMI) that Faraday had discovered in the 19th century, the company’s “Splashpad” contained a coil that generated a magnetic field when a current flowed through it. When a mobile device containing a corresponding coil was brought near the pad, the process was reversed as the magnetic field generated a current in the second coil, charging the device’ s battery without the use of wires. Unfortunately, although Faraday’s principles of electromagnetic induction have stood the test of time, Splashpower has not — it was declared bankrupt last year without having launched a single product.
Thanks to its simplicity .and measurability, electromagnetic induction is still the technology of choice among many of the remaining companies in the wireless-charging arena. But, as Splashpower found, turning the theory into profitable practice is not straightforward. But lately there have been some promising developments.
The first is the formation in December 2008 of the Wireless Power Consortium, a body dedicated to establishing a common standard for inductive wireless charging, and thus promoting its adoption. The new consortium’s members include big consumer-electronics firms, such as Philips and Sanyo, as well as Texas Instruments, a chipmaker.
Fierce competition between manufacturers of mobile devices is also accelerating the introduction of wireless charging. The star of this year’s Consumer Electronics Show held in Las Vegas was the Pre, a smart-phone from Palm. The Pre has an optional charging pad, called the Touchstone, which uses electromagnetic induction to charge the device wirelessly.
As wireless-charging equipment based on electromagnetic induction heads towards the market, a number of alternative technologies are also being developed. PowerBeam, a start-up based in Silicon Valley, uses lasers to beam power from one place to another.
It now seems to be a matter of when, rather than if, wireless charging enters the mainstream. And if those in the field do find themselves languishing in the disillusionment, they could take some encouragement from Faraday himself. He observed that “nothing is too wonderful to be true if it be consistent with the laws of nature.” Not even a wirelessly rechargeable iPhone.

A:To turn the Faraday’s theory into profitable practice. B:To find ways for the consumer-electronics industry. C:To integrate consumer-electronics firms and chipmakers. D:To promote a common standard for inductive wireless charging.

The year 2000 will bring big changes in communication. Cell phones will be small enough to carry in your pocket. Videophones will let you see the person you are talking to on the phone. Tiny hand size computers will know your favorite subjects. The Internet and email will be everywhere.
Technologists believe 2000 will be the year of video messaging. You will be able to see whom you’re talking to.
Also in the near future small wireless boxes will pick up information from satellites. In 5 years, computers won’t need to be connected through wires.
All of this will be good for rural areas and countries that don’t have cable or telephone now.
In 20 years you may only need to think about something and the computer will do it.
Constance Hale is the author of Sin and Syntax, "I believe that email has been an incredible boon to communication. People are writing today where they would have been telephoning yesterday. So people are engaging with words more than they have for the last couple generations."
If people use email and the Internet more, it could make people better readers and writers. Some people think the most important part of communication is to make people understand each other better. Will technology make that easier
The translator also comes in handy in medical emergencies. Tam Dinh says, "Where people are injured it’s always important to get as much information as quickly as possible."
Bob Parks is an Associate Editor of Wired Magazine, "Bob’s morning begins at about 6:45 am. and Bob is kind of mad, because Bob usually gets up at around 7:15 and likes to cut it close with his morning commute, but I look at my radio and it says that there’s a traffic jam on 101 South and I’m gonna need an extra 1/2 hour. And so my radio has got a net connection, wireless net connection as well as a good old power cord to the wall and it has received notice that there’s a traffic jam and it has calculated an extra 1/2 hour commute time."
Some day everything may be connected to the Internet. Your refrigerator will add milk to your Internet grocery list when the date on the carton has passed. Light bulbs will be ordered before they bum out.
It’s fun to try to guess the future. Usually the predictions are wrong. The one thing we know for sure is that we can’t imagine how technology will change.

A:One of the biggest barriers to Internet use is getting wires into rural areas. B:The wireless computers will be cheaper. C:People in rural areas don’t have anything else to do. D:People in rural areas already have wireless boxes on their roofs.

当前接入 互联网的重要手段之 WiFi 的英文全称是(　)。

A:Wireless Fidelity B:Wire Fidelity C:Wireless Find D:Wireless Fine

With the explosive popularity of mobile devices, we have witnessed a steady increase in demand for mobile date service. In addition mobile users also expect to connect to the Internet for communicate and access to services through the best suitable connection, anywhere and at anytime. Although the seamless roaming capability is well supported in conventional. Cellular communication networks, roaming and interworking technologies are still immature in heterogenous wireless networks. Seamless roaming over heterogenous wireless networks will be an ongoing and improved process, due to the requirements from both end users and network administrators. From the wireless access networks belonging to different administrative domains, mobile users cannot always identify at every instance which network is the best one to access for their service. It is highly demanded to establish a network architecture which can facilitate mobile terminals to access the appropriate network in a cost-effective way. If a mobile user wants to move from one network to another with continuous service, the terminals have to cope with network change to maintain service seamlessly. Quality of service is a major issue that the end users should be provided with the satisfying service, while the network workload and cost should not too much increased. In addition, since end users are provided with numerous service ranging from Voice-over-IP to Video-on-Demand services, it is expected that users can experience the same quality for all the different service. Therefore, the network architecture need to be designed in such a way that the quality mechanism is incorporated so that users are served according to their individual QoS requirements. Based on the paragraph above 。

at present, seamless roaming over heterogenous wireless network is (　)in conventional cellular communication networks 。

A:better than B:maturer than C:as good as D:not as good as