我把樓上的其中一片學生自製拋物面鏡刀口圖貼到Cloudynights上,獲得評價很高的。王國維說造學問的第三境界是 “衆裏尋他千百度,回頭蓦見,那人正在,燈火闌珊處。",對幾位磨鏡班學生,或許某天他們在西藏的星空下架起這台望遠鏡觀星,又或者進入大學後在相關學科深造,才有機會體會到這幾天工作的價值所在。
http://www.cloudynights.com/ubbthreads/ ... art/1/vc/1Quote :
- The figure is smooth, the edge is quite nice.
- This mirror shows none of the zoniness or rough surfaces... to me, it is an example of a hand-polished, as opposed to a machine-polished mirror.
- I just wanted to make sure that you saw my latest post concerning that 17 year old ATM's mirror. It really is quite good, and I want both you and him to know how good it is.
- There may be some minor defects without the zonal mask, but that mirror looks darned good to me. If it is an f/5 like yours, I'd say that mirror is sure good to go.
- You can tell that 17 year old ATM for me that he has done a very nice job and that he should get that mirror into a telescope and some starlight as soon as possible.