Leer, hablar y escribir de manera efectiva en contextos académicos: consejos de Armadillo Lab opara las ciencias e ingeniería

Let’s compute how bright we expect the night sky to be in an infinite universe. Let n be the average number density of stars in the universe, and let L be the average stellar luminosity. (Text edited for length). QUICK TIP: You will probably remember the information better if you write notes in your own words on the side of the text rather than copying them from the textbook. Strategy Function Read through the page quickly for details: Important idea? Stop! − Find only key, relevant information (key words, phrases) that answers the main idea or a specific question posed by the text and/or − Find repeated concepts, as they give hints of important de- tails you need to consider Figure 2.2 : Scanning a text: read fast for specific information: How is the main idea developed or supported? EXERCISE 2.2 Keep applying strategies 1-3 in the rest of the text. By doing so, you will be able to get “the big picture” of how the text is constructed and also of what you should focus on to understand the text. Now that you have the big picture, let’s move on to locating the details through the next strategy: scanning. Main idea - Paradox: Night sky is dark Supporting details ◊ No paradox for Egyptians or Greeks. ◊ Paradox starts with cosmological model of Copernicus: distance larger than astronomical unit. ◊ Copernican system: stars vary distance from the Sun. ◊ Post- Copernican astronomers: stars are large glowing spheres through out space. 169 If you scan the second paragraph of the text above, you will see that the following concepts are repeated: “Model of Copernicus, Copernican system, Post-Copernican astronomers.” But does this answer the main idea or question of the text? Not really. In this case, you should continue onto the next step: reading closely to fully understand the text . This means you should read the sentences again and take short notes, as shown in the note- taking example below (about paragraph 2 above):