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...family and employers, and on social media. Badges are a great motivator, helping you to reach the end of the course. Gaining a badge often boosts confidence in the skills and abilities that underpin successful study. So, completing this course should encourage you to think about taking other courses. ['Discovering chemistry' digital badge] Getting a badge is...

...history of astronomy was the discovery of quasars. When first recognised, in 1963, quasars appeared at radio and optical wavelengths as faint, point-like objects with unusual optical emission spectra. The name comes from their alternative designations of 'quasi-stellar radio source' (QSR) or 'quasi-stellar object' (QSO), meaning that they resemble stars in their...

...families and begin the rehabilitation process after their extraordinary journey. [MUSIC PLAYING] Video 1 The Soyuz spacecraft Activity 9 The Soyuz descent module parachute is activated at an altitude of around 10 km, when the capsule has a velocity of around 900 kph (250 m/s). Using Figure 2 (reproduced here for convenience): [Described image] Figure 2 (repeated)...

...is out of date as I write this in 2005 (ten years is a very long time in the recent history of IT). Taylor wrote an updating paper, Real News Meets IT. I shall be drawing on Real News Meets IT in later sections of this course. In this section, I have reproduced an extract from a book (Higgins, 2004) which introduces the principal elements used by a TV station to get a report for broadcast. Higgins says that his book was ......