Heating evenly... : 無料・フリー素材/写真
Heating evenly... / wbaiv
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | I'm tempted to guess that all the yellow is sodium traces excited to glow by the heat of the flame... But that needn't be true. It was in my 8th or 9th grade chemistry class that we did the wires and various salts and elements into a burner to see what colors we got. Strontium was the most beautiful red with a touch of purple. Sodium (aka table salt) was a rich yellow... because it was the same yellow as the line in a sodium vapor lamp. Not unlike the yellow here.103-0377_IMG |
| 撮影日 | 2004-06-06 12:28:35 |
| 撮影者 | wbaiv |
| タグ | |
| 撮影地 | Tacoma, Washington, United States 地図 |
| カメラ | Canon PowerShot A100 , Canon |
| 露出 | 0.077 sec (1/13) |
| 開放F値 | f/2.8 |
| 焦点距離 | 18618.18182 dpi |