Problem: 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: "Why can astronauts hear each other even if sound cannot be transferred in space?"

Answer: "They are in enclosed space stations or pressurized suits which means they are surrounded by air molecules"

OPTIONS:
- no
- yes
Answer: yes

Problem: Tuesday, September 11, 2001, dawned temperate and nearly cloudless in the eastern United States. Millions of men and women readied themselves for work. Some made their way to the Twin Towers, the signature structures of the World Trade Center complex in New York City. Others went to Arlington, Virginia, to the Pentagon. Across the Potomac River, the United States Congress was back in session. At the other end of Pennsylvania Avenue, people began to line up for a White House tour. In Sarasota, Florida, President George W. Bush went for an early morning run. For those heading to an airport, weather conditions could not have been better for a safe and pleasant journey. Among the travelers were Mohamed Atta and Abdul Aziz al Omari, who arrived at the airport in Portland, Maine. Boston: American 11 and United 175. Atta and Omari boarded a 6:00 A.M. flight from Portland to Boston's Logan International Airport. When he checked in for his flight to Boston, Atta was selected by a computerized prescreening system known as CAPPS (Computer Assisted Passenger Prescreening System), created to identify passengers who should be subject to special security measures. Under security rules in place at the time, the only consequence of Atta's selection by CAPPS was that his checked bags were held off the plane until it was confirmed that he had boarded the aircraft. This did not hinder Atta's plans. Atta and Omari arrived in Boston at 6:45. Seven minutes later, Atta apparently took a call from Marwan al Shehhi, a longtime colleague who was at another terminal at Logan Airport. They spoke for three minutes. It would be their final conversation.

Question: "Where was George W Bush on September 11 of 2001?"

Answer: "New York"

OPTIONS:
- no
- yes
Answer: no

Problem: Dirk Diggler was born as Steven Samuel Adams on April 15 , 1961 outside of Saint Paul , Minnesota . His parents were a construction worker and a boutique shop owner who attended church every Sunday and believed in God . Looking for a career as a male model , Diggler dropped out of school at age 16 and left home . He was discovered at a falafel stand by Jack Horner . Diggler met his friend , Reed Rothchild , through Horner in 1979 while working on a film . Horner slowly introduced Diggler to the business until he became noticeable within the industry . Diggler became a prominent model and began appearing in pornographic films , after Which his career took off . He had critical and box office hits Which led him to stardom . The hits and publicity led to fame and money Which led Diggler to the world of drugs . With the amount of money Diggler was making he was able to support both his and Rothchild's addictions . The drugs eventually caused a breakup between Diggler and Horner since Diggler was having issues with his performance on set . After the breakup Diggler tried to make a film himself but the film was never completed . He then attempted a music career Which was also successful but led him deeper into drugs because of the amount of money he was making . He then starred in a TV show Which was a failure both critically and commercially . Having failed and with no work , Diggler returned to the porn industry taking roles in low-budget homosexual films to help support his habit .

Question: "In what year did Diggler drop out of school?"

Answer: "Around 1977"

OPTIONS:
- no
- yes
Answer:
yes