Who are the main characters in 'the sound machine short story'?

In 'the sound machine', the main plot involves a man who invents a sound machine. This machine can detect sounds that are inaudible to the human ear. He discovers that plants make screaming sounds when they are cut or harmed. It's a rather strange and thought - provoking story about the hidden world of sound and our perception of it.

I don't have enough information to determine the main characters. It could be a scientist who invents or studies the machine, a curious child who stumbles upon it, or a group of adventurers who are on a quest related to the machine.

Since I don't know the story well, I can't say for sure. But there might be an inventor of the sound machine as a main character.

There's also the emperor. He is a very important character as he represents the power and the establishment. His reaction to the flying machine is crucial in driving the story forward. When he sees the flying machine, he has to decide what to do about this new and potentially dangerous thing in his kingdom.

Kuno is one of the main characters. He is different from others as he has a sense of rebellion against the all - controlling machine.

The main character is the Time Traveller. He's the one who builds the time machine and goes on the journey through time. Then there are the Eloi and the Morlocks. The Eloi are the gentle, child - like beings in the future, and the Morlocks are the more menacing, subterranean creatures.

I'm not sure exactly as the details about the story aren't fully given. But perhaps there could be a lonely wanderer who is constantly surrounded by silence and has to face it. This character would be one of the main ones.

In 'The Sound of Thunder' short story, Eckels is the main character. He is a man full of bravado at the start, excited to go back in time and hunt dinosaurs. The safari guide Travis also plays a crucial role. He is the one who warns Eckels about the potential consequences of their actions in the past. There are other minor characters too, but Eckels and Travis are the ones who drive the story forward with their actions and decisions.

There's also Travis, who is the guide on the time - traveling expedition. He is responsible for ensuring the safety of the group and following the rules of time travel. Another important character is Lesperance. He has a role in preparing the time - travel journey and scouting out the dinosaurs for the hunt. These three characters play crucial roles in the story as they are directly involved in the time - travel adventure and the events that unfold because of it.

It's hard to say without reading the story, but it could be a marine biologist who is researching whale sounds.