Researchers say they are working to build
进入查看：2022-2023英语周报高一外研版第8期答案汇总
以下内容仅作展示，图片上方文字进入查看。
Researchers say they are working to build the world’s first satellite made of wood. The goal is to help fight the problem of space junk. Space junk includes things like dead satellites, lost pieces of equipment and small pieces of paint. Such objects can be dangerous to spacecraft and satellites running in space.
The project is a joint effort including the company Sumitomo Forestry and Japan’s Kyoto University. The development team recently announced plans for the satellite in a news release. The researchers say the wooden satellite, which they call LignoSat, is one of several planned projects that seek to explore how wood might be used in space in the future.
The design of a wooden satellite model is being developed by researchers from Sumitomo Forestry company and Japan’s Kyoto University. The developers say wood offers several advantages over other materials commonly used to build satellites, such as aluminum(铝) and other metals. For example, the researchers say wood does not stop electromagnetic waves(电磁波). For this reason, wooden structures could be used to house antenna(天线) equipment and other controlling equipment, the team said in a statement. Wooden structures would also be simpler to design and weigh less than present satellite equipment, the researchers added. Such satellites would be better for the environment because they would burn up when returning Earth’s atmosphere. They would not release very small pieces of polluting things into the air and oceans.
