Filmmaking takes an unexpected historical role by recording activities along Market Street, in the year preceding the destruction from the San Francisco earthquake of 1906 (footage in the modern film Trip Down Market Street 1905/2005).
The film recounts the life and works of the 19th century British civil engineer and architect Isambard Kingdom Brunel in a way that is affectionate while often tongue-in-cheek. The narrator, voiced by Harry Fowler, explains the triumphs and setbacks of Brunel's career, comparing him to Archimedes, Isaac Newton and Albert Einstein. Richard Briers provides the voice of Brunel. There are numerous songs in the film, including "Get a big top hat if you want to get ahead". Great is primarily an animated film, although it is mixed media, combining some live action sequences with the animation.
Grandparents are the parents of a person's father or mother – paternal or maternal. Every sexually-reproducing creature who is not a genetic chimera has a maximum of four genetic grandparents, eight genetic great-grandparents, sixteen genetic great-great-grandparents, etc., although the numbers will be lower in cases of pedigree collapse. In the history of modern humanity, around 30,000 years ago, the number of modern humans who lived to be grandparents increased exponentially. It is not known for certain what spurred this increase in longevity, but it is generally believed that a key consequence of three generations being alive together was the preservation of information which could otherwise have been lost; an example of this important information might have been where to find water in times of drought.
In cases where parents are unwilling or unable to provide adequate care for their children (e.g., death of the parents), grandparents often take on the role of primary caregivers. Even when this is not the case, and particularly in traditional cultures, grandparents often have a direct and clear role in relation to the raising, care and nurture of children. Grandparents are second-degree relatives and share 25% genetic overlap.