080913-1050512 : 無料・フリー素材/写真
080913-1050512 / Waifer X
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Convection currents in a Lava Lamp(TM). The light bulb at the base heats up wax droplets, which expand in volume, thus decreasing their density, and allowing them to rise. After the droplets at the top of the lamp subsequently cool, their volume contracts, increasing their density, which causes them to sink. Video taken by Cuesta College Physical Sciences Division instructor Dr. Patrick M. Len. |
| 撮影日 | 2008-09-13 18:02:37 |
| 撮影者 | Waifer X |
| タグ | |
| 撮影地 | Paso Robles, California, United States 地図 |