Virtual Reality (1)

Creating new worlds with technology 
虛擬實境應用無限寬廣   以科技創造新世界

Technology companies are working around the clock. Their goal: to use computers to create a 3-D environment that people can interact with. Virtual reality is working to let people go deeper and deeper into a world that exists only inside a computer.

The display
For users to be fully immersed in this virtual world, watching it on a screen is not enough. The virtual world must be all they see. To make that happen, companies are developing virtual-reality headsets with two screens, one in front of each eye. The screens display slightly different pictures, which makes objects appear in 3-D.

The input
Companies have developed several systems to let users influence the different virtual worlds they create. Some controllers resemble the ones used for video games. Others called data gloves detect hand motions, letting people interact naturally with the virtual environment.

One company, Motion Analysis, developed a suit with markers that let off light, allowing nearby cameras to track the wearer's motions. The cameras create a computer model of the person, which copies the user's motions in the virtual world.

Info Cloud
Teaching Topic: Around the Clock, 24/7 (日以繼夜)
1. around the clock 日夜不停, 持續不斷的在做
2. 24/7 也指日以繼夜, 但比 around the clock 還要口語

Grammar Gym
For users to be fully immersed in this virtual world, watching it on a screen is not enough. The virtual world must be all they see.
For [someone] to be [involved in a situation], [verb 1-ing] is not enough. [Something else] must be [happening].
- For a student to be accepted by this university, getting good grades is not enough. The student must be involved in a wide variety of activities or clubs.
- For a person to be given a job in this company, just passing one interview is not enough. All candidates must be interviewed three times.

Language Lab
interact v.
if people interact with each other, they talk to each other, work together etc
- The class was designed for students to interact in English in a natural surrounding.
interaction n.
a process by which two or more things affect each other
- The interaction between the actors and the audience was fun.

immerse v.
to put someone or something deep into a liquid so that they are completely covered
- Immerse the cloth in the dye completely for two hours.
- The playwright immersed herself in stories of medieval times when she was writing the script.

input n.
information that is put into a computer
- The computer system can't handle that much input at one time.
- Jackson didn't have much input regarding this project.
output n.
the information produced by a computer
- We'll check the output after running the software to make the necessary improvements.

resemble v.
to look like or be similar to someone or something:
- This piece of art resembles one I saw in Chicago last week.
resemblance n.
if there is a resemblance between two people or things, they are similar, especially in the way they look [similarity]
- There's a striking resemblance between the two sisters.

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