Technology

Physicians are seeing the following problems from "information technology".

• Cell phone thumb - tendon and ligament damage to both thumbs from texting and game playing.
• Eye strain from cell phone use, computer screens and TVs.
• Body pains from using computers in the wrong position.
• Body pains from game units, Wii, cell phones, and computer keyboards and joy sticks. (Wii users can get accidentally injured doing some of the movements.)
• Brain tumors from electromagnetic field waves from excessive use of cell phones and cordless phones. Don't be surprised if cancer starts showing up from texting too.
• And believe it or not: Amateur radio use at 1000 watts for excessive amount of hours has resulted in cancerous tumors of the radio user and neighbors. One neighborhood had six people died from the Amateur Radio person's unshielded radios, including the radio operator and his wife. Ham radios can transmit far on a mere 5 watts so you can see how 1000 watts is excessive and dangerous.

Astronomy, airplanes, telephones, electric lights, and motorized vehicles are all examples of technology, which is the application of scientific discoveries to physical use.

Computers, the internet and cellular phones are examples in the field of electronics, which is the most widely recognized technological field. Other examples include microwave ovens, DVD players, iPods, and remote controls for video and audio devices.

(Information technology involves the electronic collection, use, and transmission of data.)
Marketing always sounds easier in theory than it is in practice. Even with a solid concept, outlining the execution often proves to be as difficult.

• computers
• television
• radio
• car electronics
• DVD player
• iPod
• Mobile phone

The mechanical equipment used to produce something

Wi-Fi is a wireless technology brand owned by the Wi-Fi Alliance intended to improve the interoperability of wireless local area network products based on the IEEE 802.11 standards.

Common applications for Wi-Fi include Internet and VoIP phone access, gaming, and network connectivity for consumer electronics such as televisions, DVD players, and digital cameras.

wi-fi basically means wireless connection

Wi-Fi, which stands for wireless fidelity, in a play on the older term Hi-Fi, is a wireless networking technology used across the globe. Wi-Fi refers to any system that uses the 802.11 standard, which was developed by the Institute of Electrical and Electronics Engineers (IEEE) and released in 1997. The term Wi-Fi, which is alternatively spelled WiFi, Wi-fi, Wifi, or wifi, was pushed by the Wi-Fi Alliance, a trade group that pioneered commercialization of the technology.

In a Wi-Fi network, computers with wifi network cards connect wirelessly to a wireless router. The router is connected to the Internet by means of a modem, typically a cable or DSL modem. Any user within 200 feet or so (about 61 meters) of the access point can then connect to the Internet, though for good transfer rates, distances of 100 feet (30.5 meters) or less are more common. Retailers also sell wireless signal boosters that extend the range of a wireless network.

Wifi networks can either be "open", such that anyone can use them, or "closed", in which case a password is needed. An area blanketed in wireless access is often called a wireless hotspot. There are efforts underway to turn entire cities, such as San Francisco, Portland, and Philadelphia, into big wireless hotspots. Many of these plans will offer free, ad-supported service or ad-free service for a small fee. San Francisco recently chose Google to supply it with a wireless network.

Wifi technology uses radio for communication, typically operating at a frequency of 2.4GHz. Electronics that are "WiFi Certified" are guaranteed to interoperate with each other regardless of brand. Wifi is technology designed to cater to the lightweight computing systems of the future, which are mobile and designed to consume minimal power. PDAs, laptops, and various accessories are designed to be wifi-compatible. There are even phones under development that would switch seamlessly from cellular networks to wifi networks without dropping a call.

New wifi technologies will extend range from 300 feet (91.5 meters) to 600 feet (183 meters) and beyond, while boosting data transfer rates. Most new laptops nowadays come equipped with internal wireless networking cards.

Wi-Fi is a trademark of the Wi-Fi Alliance that may be used with certified products that belong to a class of wireless local area network (WLAN) devices based on the IEEE 802.11 standards.

More input

WiFi is wireless internet many people use instead of cable or modem. It transmits through a router and any WiFi-recieving device (laptop, iphone, etc) can access it if either:

a) They know the password to unlock it for their device

b) The owner of the WiFi chooses to keep it unlocked and free for anyone.

Places like Starbucks will have free (unlocked) WiFi.

Urban Dictionary: Wi-Fishing

The act of trolling an area with your laptop in hand trying to pick up a free WiFi signal.

For a given outer diameter, the solid shaft is stronger, but it weighs more.

For a given weight, the hollow shaft is stronger because it has a bigger diameter.
due to less weight & less bending moment..............
the resultant bending moment for a solid pipe is much larger than for a hollow one because of their weight difference