Slashdot Mirror
Optical Control of Light on a Silicon Chip
An anonymous reader writes "Researchers at Cornell University have demonstrated a device that allows one low-powered beam of light to switch another on and off, on silicon, a key component for future "photonic" microcircuits in which light replaces electrons for propagating signals. It is highly desirable to use silicon--the dominant material in the microelectronic industry--as the platform for these photonic chips.
The approach developed confines the beam to be switched in a circular resonator, greatly reducing the footprint required on the chip and allowing a very small change in refractive index to shift the material from transparent to opaque."
IRAQ
1. The Bush Administration has spent more than $140 billion on a war of choice in Iraq.
Source: American Progress
2. The Bush Administration sent troops into battle without adequate body armor or armored Humvees.
Sources: Fox News, The Boston Globe
3. The Bush Administration ignored estimates from Gen. Eric Shinseki that several hundred thousand troops would be required to secure Iraq.
Source: PBS
4. Vice President Cheney said Americans "will, in fact, be greeted as liberators" in Iraq.
Source: The Washington Post
5. During the Bush Administration's war in Iraq, more than 1,000 US troops have lost their lives and more than 7,000 have been injured.
Source: globalsecurity.org
6. In May 2003, President Bush landed on an aircraft carrier in a flight suit, stood under a banner proclaiming "Mission Accomplished," and triumphantly announced that major combat operations were over in Iraq. Asked if he had any regrets about the stunt, Bush said he would do it all over again.
Source: Yahoo News
7. Vice President Cheney said that Iraq was "the geographic base of the terrorists who have had us under assault for many years, but most especially on 9/11." The bipartisan 9/11 Commission found that Iraq had no involvement in the 9/11 attacks and no collaborative operational relationship with Al Qaeda.
Source: MSNBC , 9-11 Commission
8. National Security Adviser Condoleezza Rice said that high-strength aluminum tubes acquired by Iraq were "only really suited for nuclear weapons programs," warning "we don't want the smoking gun to be a mushroom cloud." The government's top nuclear scientists had told the Administration the tubes were "too narrow, too heavy, too long" to be of use in developing nuclear weapons and could be used for other purposes.
Source: New York Times
9. The Bush Administration has spent just $1.1 billion of the $18.4 billion Congress approved for Iraqi reconstruction.
Source: USA Today
10. According to the Administration's handpicked weapon's inspector, Charles Duelfer, there is "no evidence that Hussein had passed illicit weapons material to al Qaeda or other terrorist organizations, or had any intent to do so." After the release of the report, Bush continued to insist, "There was a risk--a real risk--that Saddam Hussein would pass weapons, or materials, or information to terrorist networks."
Sources: New York Times, White House news release
11. According to Duelfer, the UN inspections regime put an "economic strangle hold" on Hussein that prevented him from developing a WMD program for more than twelve years.
Source: Los Angeles Times
TERRORISM
12. After receiving a memo from the CIA in August 2001 titled "Bin Laden Determined to Attack America," President Bush continued his monthlong vacation.
Source: CNN.com
13. The Bush Administration failed to commit enough troops to capture Osama bin Laden when US forces had him cornered in the Tora Bora region of Afghanistan in November 2001. Instead, they relied on local warlords.
Source: csmonitor.com
14. The Bush Administration secured less nuclear material from sites around the world vulnerable to terrorists in the two years after 9/11 than were secured in the two years before 9/11.
Source: nti.org
15. The Bush Administration underfunded Nunn-Lugar--the program intended to keep the former Soviet Union's nuclear legacy out of the hands of terrorists and rogue states--by $45.5 million.
Source: armscontrol.org
16. The Bush Administration has assigned five times as many agents to investigate Cuban embargo violations as it has to track Osama bin Laden's and Saddam Hussein's money.
Source: Associated Press
17. According to Congressional Research Service data, the Bush Administration has underfunded security at the nation's ports by more than $1 billion for fiscal year 2005.
Source: American Progress
accounts for Less visit