Input: 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.
"In a science fiction movie when aliens destroy a spaceship why would there be no sound heard?" is "no air molecules in space"?
Output: yes
Input: In Meadowvale , California , on June 9 , 1970 , three babies are born at the height of a total eclipse . Due to the sun and moon blocking Saturn , which controls emotions , the babies develop into children who are heartless and uncaring , with no feelings of remorse for their awful offences . Ten years later , in 1980 , Curtis , Debbie and Steven begin to kill the adults around them and are able to escape detection because of their youthful and innocent fa ades . However , when Timmy and Joyce discover their crimes , they find themselves as the targets of the evil children . Their attempt to warn their neighbors about them are ignored . Soon enough , Beverly discovers Debbie 's horrible secret with the newspaper clippings as evidence as proof and learns that she , Curtis and Steven were responsible for the murders . She realizes that Joyce and Timmy were telling the truth all along and confronts her sister for it . Beverly and Mrs. Brody forbids Debbie from hanging out with Curtis and Steven . Debbie responds by killing her older sister in retaliation with a bow and arrow . They soon attempt to murder Joyce and Timmy . However , they fight back and manages to capture Steven and Curtis . While Timmy calls the police from a neighbor 's house , Debbie manages to escape from the backyard and gets inside her mother 's car . She manages to lie about Curits and Steven trying to set her up to take the fall for the attacks . At the end , Curtis and Steven are arrested by the police much to the shock and anger of the town .
"When were Curtis, Debbie, and Steven born?" is "20"?
Output: no
Input: William C. Walbrecher Jr., an executive at San Francisco-based 1st Nationwide Bank, was named president and chief executive officer of Citadel Holding Corp. and its principal operating unit, Fidelity Federal Bank. The appointment takes effect Nov. 13. He succeeds James A. Taylor, who stepped down as chairman, president and chief executive in March for health reasons. Edward L. Kane succeeded Mr. Taylor as chairman. Separately, Citadel posted a third-quarter net loss of $2.3 million, or 68 cents a share, versus net income of $5.3 million, or $1.61 a share, a year earlier. The latest results include some unusual write-downs, which had an after-tax impact of $4.9 million. Those included costs associated with the potential Valley Federal Savings and Loan Association acquisition, which was terminated on Sept. 27, 1989. In addition, operating results were hit by an increase in loan and real estate loss reserves. In American Stock Exchange composite trading, Citadel shares closed yesterday at $45.75, down 25 cents.
"Why did James Taylor step down and who succeeded him as chairman?" is "Health reasons, Cecil Chadwick"?
Output:
no