Negative photophoresis of smoke particles observed under microgravity
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概要
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We observed the photophoresis of smoke particles in a small focal laser beam under micro-gravity, exerted in an airplane, to avoid air convectional flow due to buoyancy. We measured the motion of smoke particles and found that the particles exhibit negative photophoresis under the suppression of the convection. Based on the distribution of velocity of negative photophoresis, it is shown that the photophoretic velocity is proportional to the laser power applied for the particle. We discuss the mechanism in terms of the radiometric force.
論文 | ランダム
- オセアニアの言語と文化の総合的研究
- P.トラッドギル著(土田滋訳)「言語と社会」
- オセアニアの言語と文化の総合的研究
- フェ・アルダベ・ヤップ客員研究員
- 日本語の源流を探る--村山七郎・大林太良「日本語の起源」・村山七郎「日本語の語源」・村山七郎「日本語の研究方法」(思想と潮流)