History of Light

Edison's greatest contribution to the problem of electric light was in filament design. He tried over 6,000 alternative filament materials over two years, and spent $40,000 conducting more than 1,200 experiments. After testing substances from arou...

History of Lighting and Lamps

The first lamp was invented around 70,000 BC. A hollow rock, shell or other natural objects found was filled with foam or similar material soaked in animal fat and ignite. People began to imitate the natural forms of artificial ceramics, alabaster an...

White LEDs

He has over 30 years since the introduction of the first LED (light emitting diode) and, finally, we now have a white LED, lamps in the field of architectural details and small competitors were lighting applications.  LEDs have a phenomenal g...

Measurement Of LEDs

LEDs - Dominating Lighting Technology If there was ever a question, such as LED lighting technology is mainly to take a look around. It is almost everywhere. By standard indicators for the hi-fi, laptops and toys to traffic lights, variable message ...

LEDs Shine In Traffic Applications

Variable Message Sign (VMS) Light Emitting Diode (LED) have a permanent place for the transfer of VMS (VMS) applications. After opening a little happier in the 1980s, the LED has become the preferred source of VMS for the new millennium. Virtually...

LED Alphabet Soup

ChemistryIf the light came first commercially available, there are about 30 years, nobody really paid attention to what was or what it consisted of chemicals. This was partly to do some basic types and colors (eg, GAP - red and green, and GaAsP - yel...

History Of LEDs and LED Technology

Light Emitting Diode (LED) Light Emitting Diode (LED), light emitting diode (LED) is essentially a PN junction semiconductor diode that emits monochromatic light () monochrome works when one side forward. The basic structure consists of an LED, or...

India will be the fourth anti-missile intercept test

India's Defense Research and Development Organization 2,, announced this month that the organization will be the fourth anti-ballistic missile tests in order to further enhance the ability to intercept ballistic missiles. India's Defense Research ...

PLO called on Israel to stop violations in Jerusalem

Palestine Liberation Organization (PLO) in Ramallah, on the 2nd statement, urged the United Nations and the international community to take urgent measures to prevent Israel from the Temple Mount in the Old City of Jerusalem (Muslim, said Noble Sanct...

Iran's hope that the Iranian nuclear issue China has made "more impartial conduct"

Russian President Dmitry Medvedev on the 1st visit for the first time in France, said that it might agree to sanctions against Iran, which Iranian officials cautious, but for China and Russia's attitude on the Iranian nuclear issue, Iran all walks of...

Croatia and Russia signed the "South Stream" project agreement

Croatia 2, with Russia signed in Moscow to join the "South Stream" natural gas pipeline project intergovernmental agreements. Russian Prime Minister Vladimir Putin that day with visiting Croatian Prime Minister held talks cossor. After t...

Obama's plan to reduce huge inventories of nuclear weapons the United States to pave the way for the nuclear-free world

According to the British Broadcasting Corporation reported that the U.S. government, a senior official said the president Obama plans to "substantial" reduction of U.S. nuclear weapons stockpiles. Reported that the U.S. government is cur...

The Japanese Government intends to set up companies and private enterprises for the overseas nuclear power plant orders

According to Japan's Kyodo News agency reported that Japan's economy, Trade and Industry Administrative Officer 1, Yosuke Kondo told a news conference, in order to make the future of Japanese companies to win the Asian emerging market countries build...

U.S. astronauts on the moon, said the wreckage was found extraterrestrial spacecraft

International Online Zhuangao: 1976, NASA had planned to implement the "Apollo 20" moon program, but official sources said the plan was due to "financial problems" was forced to cancel. But the 78-year-old former Air Force employe...

Bosnia and Herzegovina, former President Ganic was arrested for war crimes in London

British police confirmed that the Serbian government because of Ganic guilty of war crimes, in November last year, extradition warrant was issued. The police is based on the extradition warrant arrested at London's Heathrow airport, Ganic's. Accordin...

3000 US-Afghan Taliban soldiers will stay home turf of maintaining stability on the ground

U.S. forces in Afghanistan, February 28, said about 3,000 US-Arab coalition forces will be stationed in the military town of Ma Erjia a few months to prevent the Taliban resurgence. Siege wins pool, the reconstruction of the Afghan government put ...

Yanukovich's visit to the European Union, said relations between Ukraine and NATO remains the same

Ukraine's newly elected president Viktor Yanukovich March 1 in Brussels, Belgium, said the relationship between Ukraine and NATO, there will be no change, will keep its original level. Yanukovych also stressed that Ukraine's position will remain u...

Russian President says Iran could exacerbate the situation that Russia will agree to sanctions against Iran

A visit to France with Russian President Medvedev 1, said that Russia has decided to prepare for Iran's nuclear program to impose new sanctions. According to reports, on the 3-day state visit to France March 1 of Medvedev told reporters that altho...

The United Nations standby to provide assistance to the affected areas of Chile

On the Chile earthquake, the United Nations Economic Commission for Latin America and the Caribbean No. 1, that the United Nations had been on standby, ready to provide assistance to the Government and people of Chile, but Chile was not present to th...

Hillary Clinton will visit to Chile to support the Disaster Relief

The U.S. State Department Monday announced that Secretary of State Hillary Clinton on the 2nd visit to Chile, met with Chilean President Michelle Bachelet to express the U.S. government's condolences and assistance, the State Council, said Chile has ...

For the U.S. government has also invested heavily in "Great Lakes" good ecological environment

U.S. Director of Environmental Protection Lisa Jackson met with the governor of Lakes state, we put forward a new "action plan" designed to focus on governance in the Great Lakes region to eliminate invasive species, removal of pollutants, ...

Ukrainian government funding the inauguration of Viktor Yanukovych Tymoshenko not to attend the

According to Hong Kong "in Assessment Society" Web site reported on the 22nd of this month on the 25th will be the newly elected President of Ukraine Viktor Yanukovych at the inauguration ceremony of the day, although the rival Yulia Tymosh...

British Airways strike, the U.S. military captured Iwo Jima photo poster imitation lead to controversy

According to the British "Daily Mail" reported February 21, British Airways flight attendants to protest layoffs and the proposed general strike was launched. An imitation of their posters, Iwo Jima during World War II the U.S. military cap...

"Tomahawk" cruise missiles will be retired, said the United States does not affect the "nuclear umbrella"

According to Japan's Kyodo News agency reported that more than 22, the Japanese government stakeholders revealed that the U.S. government has notified Japan through unofficial channels will gradually retire "Tomahawk" cruise missiles, but t...

Russian media invited to explore the enemies of the state officials in the United States and Europe out competitors

Russia's "Kommersant" magazine under the "Government" article published February 22, inviting top officials to discuss Russia's "At present, the main threat facing Russia what is." There Russian officials that Russia's b...

Honduras is expected to return to the Organization of American States

OAS Secretary General Insulza has said that if the Organization of American States of Honduras to meet the terms proposed, is expected to return to the regional organizations. Argentina "clarion" 21 days, published an interview on Insulz...

United Arab Emirates said the suspects in the assassination of Hamas officials holding diplomatic passport

British "The Times" February 22 report, the United Arab Emirates officials said the assassination of Palestinian Islamic Resistance Movement, Hamas, the senior commanders, Mahmoud - Maba Huch suspects who may be holding a diplomatic passpor...

Latin American and Caribbean foreign ministers meeting closed

The two-day Latin American and Caribbean foreign ministers meeting on the 21st in the southeastern city of Cancun, Mexico, the closing on the formation of a Latin American and Caribbean countries, excluding the United States and Canada, new regional ...

Jakarta hotel bombings suspects face the death penalty trial in the highest

According to U.S. media reports, has been accused of masterminding last year's luxury hotel in Jakarta bombings suspects in the case of a trial commenced on the 10th. Amir Abdillah was once a suspect Malaysian terror suspects Mohammed Noureddine T...

IAEA experts say Iran does not have the capacity to produce nuclear fuel rods

7 Iran announced the production of enriched uranium a purity of 20, the United States and other Western countries is extremely angry and decided to take new action against Iran, while the International Atomic Energy Agency experts believe that Iran s...

Pakistani bomb attack on a police patrol killed 10 people caused by

According to U.S. media reports, Pakistani officials said February 10 that day a "human bomb" attack on a police patrol in northern Brazil, killing 10 people.

Russia's unilateral destruction of the seized goods, the Chinese side made representations to the Chinese business

Russian media widely reported by Russian authorities began the destruction of September 11, 2008 regarding the seizure of goods of Chinese businessmen. It is estimated that about 6,000 containers the goods, worth two billion U.S. dollars. Person in c...

Russia hopes the United States plans to deploy anti-missile system in Romania to explain

5 Russian Foreign Ministry issued a statement on the United States plans to deploy anti-missile system in Romania, said "worried" and hopes that the U.S. explanation.     The statement said that the Russian side note...

Meifang Zhang said that there is no sign of the exchange agreement with Iran to reach nuclear fuel

6, U.S. Defense Secretary Robert Gates said that at present there is no indication that the West will work with Iran on nuclear fuel switching to reach an agreement, countries need to consider whether to adopt the "different approach" to de...

Toyota, the attitude of the security myth of a crisis the United States has frequently put pressure on hard-line

  Toyota's recent situation is "partially closed with a leaking rain."     The global financial crisis, car sales make it a substantial reduction in operating profit in fiscal 2008, even after a lapse of 71 years of d...
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