Input: The old vaulted church was stripped down: there was no cloth on the altar, just a DJ's toolkit and his beer. Through the dark, I could see three bolts left in the wall from where they'd taken down the crucifix. A confessional too beaten-up to have been sold was shaking in a way that suggested activity inside, and where the pews had been taken out, a couple hundred people were testifying to the DJ's moving sermon. Rachel stepped forward into the crowd while I took a moment to drink in the ceiling's blue-lit, shadowed vault and the light-catching haze from who-knows-what rising between the DJ and the crowd. There was a terrific echo, each beat reverberating inside of the next, and the old stained-glass windows rattled in their frames. On the dance floor, people moved with their eyes closed and their hands in the air. I danced with Rachel for a while, but then something by the bar seemed to be pulling her eyes. She told me that she was heading for a drink and slipped out of the crowd. When she hadn't come back halfway through the next song, I glanced over at the bar. It was just a little set-up where someone had stacked a few crates and brought something alcoholic to share, mostly beer. Rachel was standing with a plastic cup, looking like she was having a conversation, but I couldn't see anyone else there. The next time the crowd split, I saw him. He stood in front of a blue light, so I couldn't see him clearly, but what I saw was memorable. He wore a jacket of what might have been blue velvet, and his hair gleamed black against his white skin. The blue haze seemed to stop just shy of his pallor, setting off his striking face without illuminating its details, and his wrists flashed white in the darkness. He didn't move, just stared and held his drink. The next time I saw them, his mouth was moving. She nodded and he took her arm. I watched them through the crush of dancers as they squeezed along the wall, and the feeling came to me that something was very wrong. Saturday morning, I woke up and saw that she still hadn't come home.
"What phrases draw a parallel between this party scene and a typical church scene." is "A couple hundred people were testifying to the DJ's moving sermon. On the dance floor, people moved with their eyes closed and their hands in the air"?
Output: yes
Input: It is not enough to describe some objects by their location. We may also need to know its direction. For example, a wind blows a storm over your school. Where is that storm coming from? Where is it going? How can we describe a direction? The most common way is by using a compass. A compass is a device with a floating needle (Figure 2.1). The needle is a small magnet. The needle aligns itself with the Earth's magnetic field. The compass needle always points to magnetic north. If you have a compass and you find north. You can then know any other direction. See the directions, such as east, south, west, etc., on a compass rose. The Earth has two poles. It has a magnetic north pole. It also has a geographic north pole. These two poles are close to each other but not the exact same place.
"How does the compass work?" is "The needle aligns with the position of north"?
Output: yes
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.
"What can sound waves move through?" is "Water"?
Output:
yes