The Lamp That Counts Noise

The university library has a new lamp. It sits in the middle of the group study table. It is round and white. A sign says: "Green is good. Red is loud."

Yoon, Dmitri, and Uma take the table on Tuesday. They have a big test on Friday. They open their books.

The lamp is green.

"Easy," says Dmitri in a loud voice.

The lamp turns yellow.

Uma puts a finger on her lips. "Quiet," she whispers. "The lamp hears you."

Yoon laughs, but he covers his mouth. The lamp stays yellow for a moment. Then it goes green again.

They study for ten minutes. Uma reads a question. Dmitri thinks. Yoon writes the answer on a card. Nobody talks too much. The room feels calm and warm.

Then Dmitri finds a funny picture in his book. It shows a man with a very big nose. Dmitri starts to laugh. He cannot stop.

The lamp turns red. A tiny sound plays. Beep, beep.

A student at the next table looks up. Dmitri says "sorry" with his hands over his face.

"New rule," Uma whispers. "Funny pictures are for after the test."

Yoon has an idea. "Let us make a game," he says. "We keep the lamp green for ten minutes. Then we eat a snack."

"What snack?" asks Dmitri.

"An orange," says Uma. "I have three in my bag."

They agree. They use hand signs for yes and no. Uma points at a page. Yoon nods. Dmitri writes. The lamp stays green for five minutes. Then eight. Then ten.

Uma gives each boy an orange. They peel them very slowly. But peeling is a loud job. The lamp turns yellow again.

"The orange is the enemy," Yoon whispers. They all shake with silent laughter.

After the snack, they play again. This time, they write notes on paper. Dmitri draws a small face on his note. It says, "Is this answer right?" Uma writes back, "Yes. Good job." Yoon draws a small star.

The lamp stays green for twenty minutes. Then it stays green for thirty.

A girl from the next table comes over. She has a stack of books. "Can I sit here?" she whispers. "Your table is so quiet. My table is always red."

"Come in," Uma whispers. "But no oranges."

The girl laughs without a sound. Uma gives her a pencil. She sits down and opens her book.

The group works for two more hours. They learn six chapters. Dmitri says the lamp is a strict teacher. It never gets tired. Uma says it is more like a friend.

On Friday, they take the test. The hall is very quiet. Dmitri looks at Yoon and smiles. Quiet is easy now.

After the test, the friends walk back to the library. It is late, and the room is empty. The lamp sits in the middle of the table. It is green.

Yoon takes the last orange from his bag. He puts it next to the lamp.

"For the hero," he says.

The lamp stays green.