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outreach:tours
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outreach:tours [2017/11/17 00:04] (current) Jim Lovell |
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| ====== Tour Guide Cheat Sheet ====== | ====== Tour Guide Cheat Sheet ====== | ||
| - | ==== Solar System ==== | + | ===== Stuff Kids are Taught ===== |
| + | See the [[https://australiancurriculum.edu.au|Australian Curriculum]] pages for details | ||
| + | ==== Grade 3/4 (9 and 10 year-olds) ==== | ||
| + | * recognising the sun as a source of light | ||
| + | * constructing sundials and investigating how they work | ||
| + | * describing timescales for the rotation of the Earth | ||
| + | * modelling the relative sizes and movement of the sun, Earth and moon | ||
| + | ===== Solar System ===== | ||
| - | If the Sun (1.4 million km diameter) were shrunk to the diameter of the 26m dish, Earth would be the size of a basketball and the Moon about the size of a tennis ball. On this scale, Earth would be 2.6 km away (roughly Cambridge) and the Moon would be 6.5m from the Earth. You can fit all the planets into the space between the Earth and the Moon. | ||
| - | Jupiter is 11 times the diameter of the Earth so would be about 2.4m across on this scale. | ||
| + | If the Sun (1.4 million km diameter) were shrunk to the diameter of the 26m dish, (scaling is 53 million to 1) Earth would be the size of a basketball and the Moon about the size of a tennis ball. On this scale, Earth would be 2.6 km away (roughly Cambridge) and the Moon would be 6.5m from the Earth. You can fit all the planets into the space between the Earth and the Moon. | ||
| - | ==== Active Galactic Nuclei ==== | + | ^ Body ^ Diam (km) ^ Scaled Diam (cm) ^ The size of... ^ |
| + | | Sun | 1,392,000 | 2600 | 26m dish | | ||
| + | | Mercury | 4,879 | 9.2 | | | ||
| + | | Venus | 12,100 | 22.8 | Basketball | | ||
| + | | Earth | 12,740 | 24.0 | Basketball | | ||
| + | | Moon| 3,474 | 6.6 | Tennis or cricket ball | | ||
| + | | Mars | 6,779 | 12.8 | | | ||
| + | | Jupiter | 139,800 | 264 | | | ||
| + | | Saturn | 116,500 | 220 | | | ||
| + | | Uranus | 50,720 | 96 | | | ||
| + | | Neptune | 49,250 | 93 | | | ||
| + | | Pluto | 2,372 | 4.5 | Golf ball | | ||
| + | |||
| + | |||
| + | === Distances === | ||
| + | |||
| + | == Earth to Moon == | ||
| + | The Moon is 384,000 km from the Earth, which is 7.2m on this scale (about 5 grade 4 kids with their arms stretched out) | ||
| + | |||
| + | == From the Sun == | ||
| + | ^ Body ^ Dist from Sun (millions of km) ^ Scaled Distance (km) ^ From Mt Pleasant to... ^ | ||
| + | | Mercury | 58 | 1.1 | Frogmore Creek | | ||
| + | | Venus | 108 | 2.0 | Half way back to Cambridge on Richmond road | | ||
| + | | Earth | 150 | 2.8 | Mini-golf, Cambridge | | ||
| + | | Mars | 228 | 4.3 | Cambridge Park (Anaconda, Harvey Norman etc) | | ||
| + | | Asteroid belt | 950 | 7.8 | Richmond | | ||
| + | | Jupiter | 779 | 14.7 | Hobart CBD | | ||
| + | | Saturn | 1,433 | 27.0 | Bagdad | | ||
| + | | Uranus | 2,877 | 54 | Oatlands | | ||
| + | | Neptune | 4,503 | 85 | Ross | | ||
| + | | Pluto | 5,874 | 110 | Conara | | ||
| + | |||
| + | |||
| + | {{:outreach:solar_system_scale.xlsx|Here's a spreadsheet}} that calculates the above scales. | ||
| + | |||
| + | ====== Other topics ====== | ||
| + | |||
| + | |||
| + | ==== Active Galactic Nuclei (by Stas) ==== | ||
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| AGN eject jets of plasma (which consists of electrons moving at close to the speed of light, spiralling around magnetic field lines). These jets are the most powerful outbursts in the Universe, and we can see them with radio telescopes. Because they are so bright, we can observe AGN to huge cosmic distances and use them to study how the Universe has evolved. Because AGN are so extreme, they allow us to probe extreme physics - for example, whether the laws of physics as we know them still work in regions of really strong gravity or magnetic fields. Often this work is done using the technique of very long baseline interferometry, where signals from telescopes separated by thousands of kilometres are combined to create a much larger virtual telescope; this huge virtual telescope can then peer into the very inner regions of AGN, where the strongest gravity and magnetic fields are found. | AGN eject jets of plasma (which consists of electrons moving at close to the speed of light, spiralling around magnetic field lines). These jets are the most powerful outbursts in the Universe, and we can see them with radio telescopes. Because they are so bright, we can observe AGN to huge cosmic distances and use them to study how the Universe has evolved. Because AGN are so extreme, they allow us to probe extreme physics - for example, whether the laws of physics as we know them still work in regions of really strong gravity or magnetic fields. Often this work is done using the technique of very long baseline interferometry, where signals from telescopes separated by thousands of kilometres are combined to create a much larger virtual telescope; this huge virtual telescope can then peer into the very inner regions of AGN, where the strongest gravity and magnetic fields are found. | ||
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/home/www/auscope/opswiki/data/attic/outreach/tours.1510867967.txt.gz · Last modified: 2017/11/16 21:32 by Jim Lovell
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