Parabolic Mirror Exhibit : 無料・フリー素材/写真
Parabolic Mirror Exhibit / ke4roh
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | This exhibit invites guests to slide marbles along a table where they are directed by a parabolic arc into the hole in the center. The hole should probably be a might bit bigger, but it works pretty well. |
| 撮影日 | 2011-04-16 11:39:00 |
| 撮影者 | ke4roh |
| タグ | |
| 撮影地 | Durham, North Carolina, United States 地図 |
| カメラ | Canon EOS REBEL T1i , Canon |
| 露出 | 0.04 sec (1/25) |
| 開放F値 | f/2.8 |
| 焦点距離 | 24 mm |