世界最大單口徑射電望遠鏡工程進展順利

[bingsze]

正啊！謝謝分享！



還有，大家知不知國家總是在建大的射電，其他的光學總不是這麼大呢？

Three reasons :-

1. lack the technology to grind, polish and figure 10m class mirror.

2. lack the suitable site to place 10 m class telescope. Even around the whole world such site is still rare.

3. break throughs in optical astronomy may comes not as fast as those from radio astronomy. Better c/p ratio in radio astronomy.

http://tiananmenstremendousachievements ... telescope/

military usage.

[Chanlunlun]

正啊！謝謝分享！



還有，大家知不知國家總是在建大的射電，其他的光學總不是這麼大呢？

Three reasons :-

1. lack the technology to grind, polish and figure 10m class mirror.

2. lack the suitable site to place 10 m class telescope. Even around the whole world such site is still rare.

3. break throughs in optical astronomy may comes not as fast as those from radio astronomy. Better c/p ratio in radio astronomy.

http://tiananmenstremendousachievements ... telescope/

military usage.

Not quite possible for such a giant dish. I belief that it is 99.9% for astronomical work.

[philip425]

比較一下全球的大光學望遠鏡, 中國所占的份量還真是微不足道. 而且唯一入圍的LAMOST, 還是俄羅斯JSC LZOS製造的. 這方面我們真的要落功夫追上去. 據知 TMT 的部份鏡片已在日本開工製造, 不知中國方面有沒有份額呢?

http://en.wikipedia.org/wiki/File:Compa ... irrors.svg