Context and question: Chapter X examines whether patterns in the fossil record are better explained by common descent and branching evolution through natural selection, than by the individual creation of fixed species. Darwin expected species to change slowly, but not at the same rate some organisms such as Lingula were unchanged since the earliest fossils. The pace of natural selection would depend on variability and change in the environment. This distanced his theory from Lamarckian laws of inevitable progress. It has been argued that this anticipated the punctuated equilibrium hypothesis, but other scholars have preferred to emphasise Darwin's commitment to gradualism. He cited Richard Owen's findings that the earliest members of a class were a few simple and generalised species with characteristics intermediate between modern forms, and were followed by increasingly diverse and specialised forms, matching the branching of common descent from an ancestor. Patterns of extinction matched his theory, with related groups of species having a continued existence until extinction, then not reappearing. Recently extinct species were more similar to living species than those from earlier eras, and as he had seen in South America, and William Clift had shown in Australia, fossils from recent geological periods resembled species still living in the same area.
How did Darwin expect species to change and evolve?
Answer: slowly, but not at the same rate
Context and question: In 1959, an international gathering of over 185 judges, lawyers, and law professors from 53 countries, meeting in New Delhi and speaking as the International Commission of Jurists, made a declaration as to the fundamental principle of the rule of law. This was the Declaration of Delhi. They declared that the rule of law implies certain rights and freedoms, that it implies an independent judiciary, and that it implies social, economic and cultural conditions conducive to human dignity. The Declaration of Delhi did not, however, suggest that the rule of law requires legislative power to be subject to judicial review.
How many judges participated in the Declaration of Delhi?
Answer: 185
Context and question: The assumption that black-body radiation is thermal leads to an accurate prediction: the total amount of emitted energy goes up with the temperature according to a definite rule, the StefanBoltzmann law (187984). But it was also known that the colour of the light given off by a hot object changes with the temperature, so that "white hot" is hotter than "red hot". Nevertheless, Wilhelm Wien discovered the mathematical relationship between the peaks of the curves at different temperatures, by using the principle of adiabatic invariance. At each different temperature, the curve is moved over by Wien's displacement law (1893). Wien also proposed an approximation for the spectrum of the object, which was correct at high frequencies (short wavelength) but not at low frequencies (long wavelength). It still was not clear why the spectrum of a hot object had the form that it has (see diagram).
What about a frozen object changes with the temperature?
Answer:
unanswerable