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: "How do astronauts hear each other?"

OPTIONS:
- no
- yes

Answer: "in enclosed areas"

Response: yes

Registration fees for Illinois lawyers could jump as much as $49 a year if lawmakers adopt two separate measures to bolster pro-bono services and support for lawyers with drug and alcohol problems. The Illinois Supreme Court is pushing for legislation that would allow it to dedicate money raised through the fee hikes to legal services to the poor. The justices are floating a $42 increase to shore up financing for pro-bono work, as the normal funding mechanism for legal services has fallen short in recent years. Currently, support for non-profit legal aid groups comes from interest generated on the Lawyers' Trust Fund, which pools clients' money that attorneys hold for such matters as escrow funds. But low interest rates and a sagging economy mean there is less money being generated. After hours of discussion, the high court agreed that raising the registration fees would be the best way to address the declining revenues, Chief Justice Moses W. Harrison II said. The judges were reluctant to raise those fees but eventually decided that supporting probono services was important enough "and lawyers had a responsibility to contribute" to the cause, Harrison said. Last year, the high court raised the base fee for active attorneys to $180 from $140. Lawyers in their first three years of practice or who are inactive pay $90, and retired lawyers pay nothing. Legislation circulated by the high court's lobbyist specifies that the hike would apply to attorneys "paying full annual registration fees." In 2001, there were 57,392 active attorneys in Illinois and 74,311 on the full roll, according to the Attorney Registration and Disciplinary Commission. The hike would raise roughly $2.4 million. Last year, interest on the trust fund totaled $4.5 million, but service and handling fees consumed $538,000 of that amount. This year's returns are projected to be anywhere between $700,000 and $1 million short of that mark, said Ruth Ann Schmitt, the executive director of Lawyers Trust Fund of Illinois. Harrison said the fee hikes are designed only to counter the shortfall in interest income, not add to the total amount available. "Our legal services are already stretched to the breaking point," Schmitt said. "We have a tough time raising enough money to properly fund services that our clients need." Neither the Illinois State Bar Association nor The Chicago Bar Association has taken a stance on the proposed hikes.

Question: "The Judges reluctantly raised the rates to how much?"

Response: "$160"
OPTIONS:
- no
- yes

A: no

Problem: Independence with Partition: The British began to see India's independence as inevitable; however, only a few seemed to understand the vital role of the religious groups. Britain prepared a parliamentary democracy with majority rule, but the majority were Hindusand Hindus, Muslims, and Sikhs had been killing each other in war for many centuries. Nehru's Congress Party, largely Hindu with a socialist leadership, wanted a parliamentary democracy. As counterweight, British legislation reserved parliamentary seats for religious minorities, but the Punjab and Bengal had such a complicated mixture of Hindus, Muslims, and Sikhs that it was not possible to avoid fights over how separate constituencies were to be formed. The seeds of future trouble were sown. The legislation on reserving seats gave the Muslims the basis for an alternative to an India in which they were only a quarter of the population: Partition. In 1930, the poet Muhammad Iqbal proposed a separate Muslim homeland in the northwest of India. A small group of Indian Muslims at Cambridge came up with the name Pakistan, using the initials of the Punjab, Afghania (N.W. Frontier Province), Kashmir, and Sind (at the same time producing the word pak, meaning "pure"), and adding "stan," the Persian suffix for the word "country. " The Muslim campaign for Partition was led by London-trained Bombay lawyer, Muhammad Ali Jinnah. Meanwhile, Gandhi vehemently opposed any dismemberment of the country, and tried to keep people united by fasting to uphold the spirit of love, and by focussing on the common adversary: the British. Advocating civil disobedience, he led his famous Salt March to the sea, to scoop up salt and circumvent the hated British salt tax. This put more than 60,000 in jail. Against this militancy, World War II did not elicit the solidarity of the first. Indians courageously fought alongside the British troops, in Burma, the Middle East, and Europe, but Gandhi saw the British as a provocation for Japanese invasion and was jailed yet again, for launching a "Quit India" campaign in the year 1942. Some anti-British extremists saw the Japanese as an Asian liberator. Winston Churchill didn't want any Indian independence and so it was probably as well for India that he was defeated by Attlee's Labor Party in 1945. With riots growing ever more bloody in Bengal, Bihar, and the Punjab, India's last viceroy, Lord Mountbatten, kept a mandate to make the British departure as quick and as smooth as possible. Quick it wassix months after his arrivalbut not smooth.

Question: "Who led the famous Salt March to the sea?"

Answer: "Mahatma Gandhi"

OPTIONS:
- no
- yes
Answer: yes

As for engravings, Durer's work was restricted to portraits and illustrations for his treatise. The portraits include Cardinal-Elector Albert of Mainz; Frederick the Wise, elector of Saxony; the humanist scholar Willibald Pirckheimer; Philipp Melanchthon, and Erasmus of Rotterdam. For those of the Cardinal, Melanchthon, and Durer's final major work, a drawn portrait of the Nuremberg patrician Ulrich Starck, Durer depicted the sitters in profile, perhaps reflecting a more mathematical approach. Despite complaining of his lack of a formal classical education, Durer was greatly interested in intellectual matters and learned much from his boyhood friend Willibald Pirckheimer, whom he no doubt consulted on the content of many of his images. He also derived great satisfaction from his friendships and correspondence with Erasmus and other scholars. Durer succeeded in producing two books during his lifetime. "The Four Books on Measurement" were published at Nuremberg in 1525 and was the first book for adults on mathematics in German, as well as being cited later by Galileo and Kepler. The other, a work on city fortifications, was published in 1527. "The Four Books on Human Proportion" were published posthumously, shortly after his death in 1528.

Question: "What two scholars did Durer correspond frequently with?"

OPTIONS:
- no
- yes

Answer: "Galileo and Kepler"

Response:
no