Animations (only parts in nuclei in the film) and images, many of them archival and foreign, illustrate that the notion of time is associated with movement and its measurement is performed by the rotation of the Earth around its axis and the Sun. The angle of inclination of the Earth in this last movement also marks the climatic seasons. From the need for greater accuracy in measuring time, gnomons and solar quadrants arose, for whose reading the duodecimal numbering is used. Based on this numbering, time zones and mechanical measuring devices were established, illustrated by the clock mechanism with a church bell. The evolution of astronomy determines the creation of more accurate electronic devices for the evaluation of time, such as the meridian telescope, the Markowitz chamber, the electronic oscillators and the telescope, with which astronomers work at the National Observatory.

Animations (only parts in nuclei in the film) and images, many of them archival and foreign, illustrate that the notion of time is associated with movement and its measurement is performed by the rotation of the Earth around its axis and the Sun. The angle of inclination of the Earth in this last movement also marks the climatic seasons. From the need for greater accuracy in measuring time, gnomons and solar quadrants arose, for whose reading the duodecimal numbering is used. Based on this numbering, time zones and mechanical measuring devices were established, illustrated by the clock mechanism with a church bell. The evolution of astronomy determines the creation of more accurate electronic devices for the evaluation of time, such as the meridian telescope, the Markowitz chamber, the electronic oscillators and the telescope, with which astronomers work at the National Observatory.

The first Brazilians who engaged in aviation, from Bartolomeu Lourenço de Gusmão with his hot air balloon to Alberto Santos Dumont, giving Brazil a prominent place in aviation. The creation of the Military Air Mail (CAM) and the Brazilian aviation industry. Commemoration of the centenary of the birth of Santos Dumont. The house where Santos Dumont was born; Bartolomeu Gusmão (Santos - SP); small hot air balloon Júlio César Ribeiro de Souza; 1881: his Victory balloon flies in Paris; Augusto Ribeiro; Santos Dumont: the balloon in the Torre Eifel, the 14 bis, the 'Demoiselle': real scenes of the time. Edu Chaves flies the Rio-Buenos Aires route in the 1920s. Current era: manufacture of the Bandeirante (assembly line). President Médici flies in the first Bandeirante; Xavante and Ipanema, Universal, rego elo and other models manufactured by Embraer in São José dos Campos.

The film documents the old Rio de Janeiro and its great focus of diseases. Stresses the decisive importance of Oswaldo Cruz who creates Experimental Medicine in Brazil, believing that without sanitation, no undertaking could succeed. Rodrigues Alves then started the urbanization of Rio, against great interests.

The film documents the old Rio de Janeiro and its great focus of diseases. Stresses the decisive importance of Oswaldo Cruz who creates Experimental Medicine in Brazil, believing that without sanitation, no undertaking could succeed. Rodrigues Alves then started the urbanization of Rio, against great interests.

Record of the life and work of Luiz Thomaz Reis, a cameraman who accompanied Rondon's expeditions through the interior of Brazil since 1915. He documented, in photographs, the revolutionary movements of the 1920s, especially that of Catanduva. In the montage, iconographic material, old films and filming made at the National Museum of Cinema were used, where some of his cameras are located.

The first Brazilians who engaged in aviation, from Bartolomeu Lourenço de Gusmão with his hot air balloon to Alberto Santos Dumont, giving Brazil a prominent place in aviation. The creation of the Military Air Mail (CAM) and the Brazilian aviation industry. Commemoration of the centenary of the birth of Santos Dumont. The house where Santos Dumont was born; Bartolomeu Gusmão (Santos - SP); small hot air balloon Júlio César Ribeiro de Souza; 1881: his Victory balloon flies in Paris; Augusto Ribeiro; Santos Dumont: the balloon in the Torre Eifel, the 14 bis, the 'Demoiselle': real scenes of the time. Edu Chaves flies the Rio-Buenos Aires route in the 1920s. Current era: manufacture of the Bandeirante (assembly line). President Médici flies in the first Bandeirante; Xavante and Ipanema, Universal, rego elo and other models manufactured by Embraer in São José dos Campos.

The first Brazilians who engaged in aviation, from Bartolomeu Lourenço de Gusmão with his hot air balloon to Alberto Santos Dumont, giving Brazil a prominent place in aviation. The creation of the Military Air Mail (CAM) and the Brazilian aviation industry. Commemoration of the centenary of the birth of Santos Dumont. The house where Santos Dumont was born; Bartolomeu Gusmão (Santos - SP); small hot air balloon Júlio César Ribeiro de Souza; 1881: his Victory balloon flies in Paris; Augusto Ribeiro; Santos Dumont: the balloon in the Torre Eifel, the 14 bis, the 'Demoiselle': real scenes of the time. Edu Chaves flies the Rio-Buenos Aires route in the 1920s. Current era: manufacture of the Bandeirante (assembly line). President Médici flies in the first Bandeirante; Xavante and Ipanema, Universal, rego elo and other models manufactured by Embraer in São José dos Campos.