Technology: Iphone 4

The iPhone 4 reflects Apple's growing commitment to the environment. Has been designed with the following features to reduce environmental impact




Main equipment without PVC
PVC-free headphonesPVC-free USB CableBromine-free printed circuitMercury-free LCD displayGlass of arsenic-free displayMost packaging is made from recycled fibers and biomaterialsAC Adapter that exceeds highest international standards of energy efficiency
CapacityFlash drive 16 or 32 GB
Mobile and wireless networksUMTS / HSDPA / HSUPA (850, 900, 1,900, 2,100 MHz)GSM / EDGE (850, 900, 1,800, 1,900 MHz)802.11b/g/n Wi-Fi (802.11n only 2.4 GHz)Bluetooth 2.1 + EDR
Display
Retina DisplayMulti-Touch widescreen 3.5-inch (diagonal)Resolution of 960 by 640 pixels at 326 p / pContrast ratio of 800:1 (typical)Oleophobic coating resistant to fingerprints on the front and rearCompatible with the simultaneous presentation of multiple languages ​​and character sets
Geographic location
Assisted GPSDigital compassWi-FiMobile
Video Playback
Video formats supported: H.264 video up to 720p, 30 frames per second, Main Profile Level 3.1 with AAC-LC up to 160 Kb / s 48 kHz, stereo audio in file formats. M4v,. Mp4 and. mov, MPEG-4 video up to 2.5 Mb / s, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC up to 160 Kb / s 48 kHz, stereo audio in file formats. m4v, . mp4 and. mov, Motion JPEG (M-JPEG) up to 35 Mb / s, 1,280 by 720 pixels, 30 frames per second, stereo sound and PCM ulaw format. avi.
Mac Requirements
Mac computer with USB 2.0 portMac OS X 10.5.8 or lateriTunes 9.2 or later (free download from www.itunes.com / download)ITunes Store AccountInternet Access.
Languages
Supported languages: German, Arabic, Catalan, Czech, Traditional Chinese, Simplified Chinese, Korean, Croatian, Danish, Slovakian, Spanish, Finnish, French, Greek, Hebrew, Hungarian, Indonesian, American English, British English, Italian, Japanese, Malay , Dutch, Norwegian, Polish, Portuguese (Portugal and Brazil), Romanian, Russian, Swedish, Thai, Turkish, Ukrainian and Vietnamese.Keyboard support: German, Arabic, Bulgarian, Catalan, Czech, Cherokee, Chinese Traditional (manual, pinyin, Zhuyin, Cangjie and wubihua), Simplified Chinese (manual, pinyin and wubihua), Korean, Croatian, Danish, Slovak, Spanish , Estonian, Finnish, Flemish, French (France, Canada and Switzerland), Greek, Hebrew, Hungarian, Indonesian, American English, British English, Icelandic, Italian, Japanese (Romaji, 10 keys and Kana), Latvian, Lithuanian, Macedonian , Malay, Dutch, Norwegian, Polish, Portuguese (Portugal and Brazil), Romanian, Russian, Serbian (Cyrillic and Latin), Swedish, Thai, Tibetan, Turkish, Ukrainian and Vietnamese.Dictionary support (active l
Environmental requirements
Operating temperature: 0 to 35 ° CTemperature operating: -20 to 45 º CHumidity: 5 to 95% noncondensing Maximum operating altitude: 3,000 m

Independence Day (United States)

Independence Day, commonly known as the Fourth of July, is a federal holiday in the United States commemorating the adoption of the Declaration of Independence on July 4, 1776, declaring independence from the Kingdom of Great Britain. Independence Day is commonly associated with fireworks, parades, barbecues, carnivals, fairs, picnics, concerts, baseball games, family reunions, political speeches and ceremonies, and various other public and private events celebrating the history, government, and traditions of the United States. Independence Day is the national day of the United States.

Background

During the American Revolution, the legal separation of the Thirteen Colonies from Great Britain occurred on July 2, 1776, when the Second Continental Congress voted to approve a resolution of independence that had been proposed in June by Richard Henry Lee of Virginia.^[4][5] After voting for independence, Congress turned its attention to the Declaration of Independence, a statement explaining this decision, which had been prepared by a Committee of Five, with Thomas Jefferson as its principal author. Congress debated and revised the Declaration, finally approving it on July 4. A day earlier, John Adams had written to his wife Abigail:

The second day of July, 1776, will be the most memorable epoch in the history of America. I am apt to believe that it will be celebrated by succeeding generations as the great anniversary festival. It ought to be commemorated as the day of deliverance, by solemn acts of devotion to God Almighty. It ought to be solemnized with pomp and parade, with shows, games, sports, guns, bells, bonfires, and illuminations, from one end of this continent to the other, from this time forward forever more.

Adams's prediction was off by two days. From the outset, Americans celebrated independence on July 4, the date shown on the much-publicized Declaration of Independence, rather than on July 2, the date the resolution of independence was approved in a closed session of Congress.

Historians have long disputed whether Congress actually signed the Declaration of Independence on July 4, even though Thomas Jefferson, John Adams, and Benjamin Franklin all later wrote that they had signed it on that day. Most historians have concluded that the Declaration was signed nearly a month after its adoption, on August 2, 1776, and not on July 4 as is commonly believed.

 In a remarkable coincidence, both John Adams and Thomas Jefferson, the only signers of the Declaration of Independence later to serve as Presidents of the United States, died on the same day: July 4, 1826, which was the 50th anniversary of the Declaration. Although not a signer of the Declaration of Independence, James Monroe, the Fifth President of the United States, died on July 4, 1831. Calvin Coolidge, the Thirtieth President, was born on July 4, 1872, and thus was the only President to be born on Independence Day.

Unique or historical celebrations

• Held since 1785, the Bristol Fourth of July Parade in Bristol, Rhode Island is the oldest continuous Independence Day celebration in the United States.
• Since 1912, the Rebild Society, a Danish-American friendship organization, has held a July 4^th weekend festival that serves as a homecoming for Danish-Americans in the Rebild section of Denmark.
• Since 1916, Nathan's Hot Dog Eating Contest in Coney Island, Brooklyn, New York City supposedly started as a way to settle a dispute among four immigrants as to who was the most patriotic.
• Since 1959, the International Freedom Festival is jointly held in Detroit, Michigan and Windsor, Ontario during the last week of June each year as a mutual celebration of Independence Day and Canada Day (July 1). It culminates in a large fireworks display over the Detroit River.
• Numerous major and minor league baseball games are played on Independence Day.
• The famous Macy's fireworks display usually held over the East River in New York City has been televised nationwide on NBC since 1976. In 2009, the fireworks display was returned to the Hudson River for the first time since 2000 to commemorate the 400th anniversary of Henry Hudson's exploration of that river.
• Since 1970, the annual 10 kilometer Peachtree Road Race is held in Atlanta, Georgia.
• The Boston Pops Orchestra has hosted a music and fireworks show over the Charles River Esplanade called the "Boston Pops Fireworks Spectacular" annually since 1973. The event was broadcast nationally from 1987 until 2002 on the A&E Network, and has aired since 2003 on CBS.
• On the Capitol lawn in Washington, D.C., “A Capitol Fourth,” a free concert, precedes the fireworks and attracts over half a million people annually.