Differences
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astro300_f14:day4 [2014/09/15 21:15] – a_lee | astro300_f14:day4 [2014/09/16 00:01] – a_lee | ||
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* Some of our favorite demos: | * Some of our favorite demos: | ||
* Remind everyone that most are written up in the EBRB and on the Resources handout (and wiki page) | * Remind everyone that most are written up in the EBRB and on the Resources handout (and wiki page) | ||
- | * Do **bolded** ones? | ||
- | * Keep going until a couple minutes before this chunk of class is supposed to be done | ||
- Arc lamps: Put high voltage through tubes of gas and look through diffraction gratings to see spectral lines. | - Arc lamps: Put high voltage through tubes of gas and look through diffraction gratings to see spectral lines. | ||
- | | + | * Head GSIs will train GSIs, Ask Ay375 instructors if you need help. |
- | | + | |
* Students like this one | * Students like this one | ||
* Make sure the stuff is there if your section is early in the day. | * Make sure the stuff is there if your section is early in the day. | ||
* Test it yourself and make sure you can see lines so you can help your students better. | * Test it yourself and make sure you can see lines so you can help your students better. | ||
- | - Warping of Spacetime: A 2D analogy using stretchy black fabric and balls/ | + | - Warping of Spacetime: A 2D analogy using stretchy black fabric and balls/ |
- Celestial sphere, phases of the moon, seasons, orbits: Styrofoam balls, a lamp or flashlight, people getting up and moving around. | - Celestial sphere, phases of the moon, seasons, orbits: Styrofoam balls, a lamp or flashlight, people getting up and moving around. | ||
- Retrograde motion //(Discuss pitfalls)// | - Retrograde motion //(Discuss pitfalls)// | ||
- Day & night on Earth (circle up around a lamp and groups of 3) | - Day & night on Earth (circle up around a lamp and groups of 3) | ||
- Lunar phases (balls on a sticks around a lamp and groups of 3) | - Lunar phases (balls on a sticks around a lamp and groups of 3) | ||
- | | + | - Seasons (circle up around a lamp) |
- | | + | - Lunar rotation and orbit (//i.e.// tidal locking) (one person orbits another with the Moon's arms outstretched) |
- | - **Parallax with your finger (very simple, “close one eye then the other” kind of thing)** | + | - Parallax with your finger (very simple, “close one eye then the other” kind of thing) |
- Doppler shift of sound (whirling a buzzer on a string) | - Doppler shift of sound (whirling a buzzer on a string) | ||
- | - Class H-R diagram | + | - Class H-R diagram |
- | - Stating in words, stating in math, drawing, and acting out Kepler' | + | - Stating in words, stating in math, drawing, and acting out Kepler' |
- Donut/bagel on a string (though I'm sure profs will do it in class) | - Donut/bagel on a string (though I'm sure profs will do it in class) | ||
- Jumping on a chair with balls being thrown (though I'm sure profs will do it in class) | - Jumping on a chair with balls being thrown (though I'm sure profs will do it in class) |