File:08. Магнусов ефект.ogv
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Македонски: Магнусов ефект. Додека цевката ротира, поради триењето, таа го зафаќа воздухот околу неа. Поради тоа, од едната страна на цевката воздухот се движи со релативно поголема брзина од оној кој е на другата страна од цевката. Оваа разлика во брзините предизвикува разлика и во динамичките притисоци од двете страни. Согласно Бернулиевата равенка, тоа резултира со различни статички притисоци од двете страни на цевката. Така од едната страна се појавува дополнителна сила која ја бутка цевката и таа оди по закривена патека. Изведено и објаснето од проф. Оливер Зајков. Институт за физика на Природно-математичкиот факултет во Скопје.
English: Magnus effect. While the pipe rotates, as a consequence of the friction, it pulls the air around. This makes the air flowing with higher speed on one side of the pipe than the speed on the other side of the pipe. This results with different dynamic pressures on two sides. According to the Bernoulli's principle, it causes different static pressures on the two sides of the pipes, creating additional force on one of the sides, which pushes the pipe and it follows a curved path. Performed and explained by Prof. Oliver Zajkov at the Physics Institute at the Ss. Cyril and Methodius University of Skopje, Macedonia.
Français : Démonstration de l'effet Magnus.
Alors que le rouleau de papier tourne, il entraîne l'air qui l'entoure par frottement. La rotation entraîne une différence de vitesse de l'air, celui-ci se déplaçant plus rapidement d'un côté que de l'autre. Cela entraîne une différence de pression (principe de Bernoulli) qui crée une force résultante entraînant la trajectoire courbée de la chute. Expérience réalisée et expliquée par le professeur Oliver Zajkov de l'Institut de physique de l'université Saints-Cyrille-et-Méthode de Skopje de Macédoine. Română: Efectul Magnus. Când cilindrul se rotește, ca urmare a frecării, el trage aerul din jur. Aceasta face ca aerul să curgă cu viteză mai mare de o parte a cilindrului decât de cealaltă. Rezultă presiuni dinamice diferite de cele două părți. Conform principiului lui Bernoulli, aceasta cauzează presiuni statice diferite de cele două porți, și deci o forță mai puternică pe una din părți, forță ce împinge cilindrul, a cărei traiectorie se curbează. Efectuat de Prof. Oliver Zajkov de la Institutul de Fizică al Universității Sfinții Chiril și Metodiu din Skopje, Macedonia. |
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| Source | Own work |
| Author | Andrejdam |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:15, 30 December 2015 | 30 s, 1,920 × 1,080 (19.17 MB) | Andrejdam | User created page with UploadWizard |
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