Sound waves are mechanical waves. They can travel only through matter. They cannot travel through empty space. This was demonstrated in the 1600s by a scientist named Robert Boyle. Boyle placed a ticking clock in a sealed glass jar. The clock could be heard ticking through the air and glass of the jar. Then Boyle pumped the air out of the jar. The clock was still running, but the ticking could not be heard. Thats because the sound couldnt travel without air particles to transfer the sound energy. Is there any other place where sound cannot be heard? Here is a hint: is there any other place that does not have air molecules? Thats right, in space sound cannot be transferred. So can astronauts hear each other? Yes, they can, because they are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules. If they left their space ship and did not use their electronics, they would not be able to hear each other. Next time you watch a science fiction movie, think about this factoid. When spaceships are destroyed by hostile alien beings, there would be no sound heard. Sound waves can travel through many kinds of matter.

Question: "In a science fiction movie when aliens destroy a spaceship why would there be no sound heard?"

OPTIONS:
- no
- yes

Answer: "because there are no air particles for sound to travel to"

Response: yes

Backers of Legal Aid services for the poor are pushing a measure that would increase court filing fees in Kentucky to raise money for the program, which faces steep funding cuts. The proposed bill, sponsored by Rep. Charles Geveden, D-Wickliffe, would double the portion of the fee that goes to Legal Aid -- in district court to $10 from $5 and in circuit court to $20 from $10. Kentucky's current fee for filing a case in district court is $50.50, and in circuit court $108. The increase still would leave Kentucky's filing fee costs below those of surrounding states and would raise about $1.3 million a year -- almost enough to replace what Legal Aid is losing from federal and other sources, said Jamie Hamon, executive director of the Access to Justice Foundation, a state poverty law resource center in Lexington. Geveden said his measure appears to be the only potential source of money for the program, which is being forced to lay off workers and close offices around the state. Geveden said he's concerned because federal funding hasn't increased in recent years, and states with increased poverty are taking a greater share of the money. ''If you don't come up with the money somewhere, legal services to people in need will diminish or go away,'' he said. Hamon said the proposed bill has attracted a number of co-sponsors, and Legal Aid backers are hoping to get it passed in the upcoming legislative session. Hamon said she knows fee increases aren't popular with lawmakers but hopes they realize the crisis Legal Aid is facing. ''A lot of poor people are not going to get served,'' she said. The measure has the endorsement of the Kentucky Bar Association. The association's board of governors voted unanimously last month to back the bill, said KBA President Stephen Catron, a Bowling Green lawyer. Legal Aid ''has been a godsend to a great number of people in this state,'' Catron said. ''We simply must find a way to provide those services to the public.'' Larry York, executive director of Appalachian Regional Defense Fund, which provides Legal Aid services in 37 Eastern Kentucky counties and is a KBA board member, said he hopes the measure is approved. ''It would really offset the current cuts,'' he said.

Question: "Under the new measure, how much would the portion that goes to legal aid increase?"

OPTIONS:
- no
- yes

Answer: "It would double"

Response: yes

Before the mysterious disappearance of one of its passenger jets this month, Malaysia wasn't a country used to finding itself dominating headlines around the world. Some of its Southeast Asian neighbors, including Indonesia and the Philippines, have suffered devastating natural disasters in recent years and are all too familiar with the media frenzy that accompanies a major crisis. But Malaysia has largely managed to stay out of the international spotlight since its independence from British colonial rule more than half a century ago. "It is one of these countries, because of its geography, that doesn't have earthquakes," said Ernest Bower, senior adviser for Southeast Asia studies at the Center for Strategic and International Studies. "It doesn't have tsunamis. It hasn't been tested with a disaster like this." The disappearance of Malaysia Airlines Flight 370 has thrust the government into the dazzling glare of worldwide attention. And it hasn't emerged with very good grades. "I think on a stress test, they're failing," Bower told CNN's Jake Tapper, pointing to the government's coordination of different agencies and communication with other countries. China among critics Criticism and complaints have come from other countries involved in the search for the missing plane, including China and Vietnam, and from the relatives of passengers. Malaysian officials have created confusion by issuing contradictory statements on key aspects of the investigation. The majority of the people on board the plane were Chinese, and Beijing has increasingly voiced its displeasure with the search, especially after Malaysia announced over the weekend that evidence suggested the plane had been deliberately flown west into the Indian Ocean, away from its last confirmed location over the South China Sea. "The new information means the intensive search in the South China Sea for the whole past week was worthless and would never bear fruit," said a commentary published by China's state-run news agency Xinhua. "Even worse, the golden time for saving possible survivors, if any, was generously wasted."

Question: "What natural disasters does Malaysia not have?"

OPTIONS:
- no
- yes

Answer: "It does not have hurricanes"

Response: no

Military Notification and Response. Boston Center did not follow the protocol in seeking military assistance through the prescribed chain of command. In addition to notifications within the FAA, Boston Center took the initiative, at 8:34, to contact the military through the FAA's Cape Cod facility. The center also tried to contact a former alert site in Atlantic City, unaware it had been phased out. At 8:37:52, Boston Center reached NEADS. This was the first notification received by the military-at any level-that American 11 had been hijacked: FAA: Hi. Boston Center TMU [Traffic Management Unit], we have a problem here. We have a hijacked aircraft headed towards New York, and we need you guys to, we need someone to scramble some F-16s or something up there, help us out. NEADS: Is this real-world or exercise? FAA: No, this is not an exercise, not a test. NEADS ordered to battle stations the two F-15 alert aircraft at Otis Air Force Base in Falmouth, Massachusetts, 153 miles away from New York City. The air defense of America began with this call. At NEADS, the report of the hijacking was relayed immediately to Battle Commander Colonel Robert Marr. After ordering the Otis fighters to battle stations, Colonel Marr phoned Major General Larry Arnold, commanding general of the First Air Force and NORAD's Continental Region. Marr sought authorization to scramble the Otis fighters. General Arnold later recalled instructing Marr to "go ahead and scramble them, and we'll get authorities later." General Arnold then called NORAD headquarters to report. F-15 fighters were scrambled at 8:46 from Otis Air Force Base.

Question: "What is the name of the airbase the fighter jets where scrambled form?"

OPTIONS:
- no
- yes

Answer: "Boston Center"

Response:
no