QUES: Infrared vibrational spectroscopy (see also near-infrared spectroscopy) is a technique that can be used to identify molecules by analysis of their constituent bonds. Each chemical bond in a molecule vibrates at a frequency characteristic of that bond. A group of atoms in a molecule (e.g., CH2) may have multiple modes of oscillation caused by the stretching and bending motions of the group as a whole. If an oscillation leads to a change in dipole in the molecule then it will absorb a photon that has the same frequency. The vibrational frequencies of most molecules correspond to the frequencies of infrared light. Typically, the technique is used to study organic compounds using light radiation from 4000400 cm1, the mid-infrared. A spectrum of all the frequencies of absorption in a sample is recorded. This can be used to gain information about the sample composition in terms of chemical groups present and also its purity (for example, a wet sample will show a broad O-H absorption around 3200 cm1).
What do most vibrations correspond to the frequencies of?

ANS: unanswerable

QUES: Following the French capture of Algeria (1833), that region saw several waves of Catalan-speaking settlers. People from the Spanish Alacant province settled around Oran, whereas Algiers received immigration from Northern Catalonia and Minorca. Their speech was known as patuet. By 1911, the number of Catalan speakers was around 100,000. After the declaration of independence of Algeria in 1962, almost all the Catalan speakers fled to Northern Catalonia (as Pieds-Noirs) or Alacant.
Where did the Algiers immigrants come from?

ANS: Northern Catalonia and Minorca

QUES: On 2 March 1882, Roderick Maclean, a disgruntled poet apparently offended by Victoria's refusal to accept one of his poems, shot at the Queen as her carriage left Windsor railway station. Two schoolboys from Eton College struck him with their umbrellas, until he was hustled away by a policeman. Victoria was outraged when he was found not guilty by reason of insanity, but was so pleased by the many expressions of loyalty after the attack that she said it was "worth being shot atto see how much one is loved".
When was the shooting?

ANS: 2 March 1882

QUES: Corporations and legislatures take different types of preventative measures to deter copyright infringement, with much of the focus since the early 1990s being on preventing or reducing digital methods of infringement. Strategies include education, civil & criminal legislation, and international agreements, as well as publicizing anti-piracy litigation successes and imposing forms of digital media copy protection, such as controversial DRM technology and anti-circumvention laws, which limit the amount of control consumers have over the use of products and content they have purchased.
What doesn't DRM and anti-circumvention laws do?

ANS:
unanswerable