Available online
Description
This is the second programme about the satellite case study deals mainly with how Project SACI is to work from a system point of view. The use of a satellite and a large ground transmitting statio...n to transmit up to the satellite (uplink) and many thousands of individual ground receiving stations pointing up at the satellite (downlink) is discussed using studio models of Intelsat IV satellite and Goonhilly 2 ground station. The problem of producing the television programmes and ancillary teaching aids (software) is discussed with Dr Mendonca, Director of the Brazilian opace Agency. Finally a short excerpt-from a maths programme made for the pilot project leading up to project SACI shows mathematics set theory being used at a very simple level.
This is the second programme about the satellite case study deals mainly with how Project SACI is to work from a system point of view. The use of a satellite and a large ground transmitting statio...n to transmit up to the satellite (uplink) and many thousands of individual ground receiving stations pointing up at the satellite (downlink) is discussed using studio models of Intelsat IV satellite and Goonhilly 2 ground station. The problem of producing the television programmes and ancillary teaching aids (software) is discussed with Dr Mendonca, Director of the Brazilian opace Agency. Finally a short excerpt-from a maths programme made for the pilot project leading up to project SACI shows mathematics set theory being used at a very simple level.
| Module code and title: | T100, The man-made world: a foundation course |
|---|---|
| Item code: | T100; 12 |
| First transmission date: | 09-04-1972 |
| Published: | 1972 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:24:26 |
| + Show more... | |
| Producer: | Tony Jolly |
| Contributors: | F de Mendonca; John Sparkes |
| Publisher: | BBC Open University |
| Keyword(s): | Brazilian Space Agency; Goonhilly 2 ground station; Individual ground recieving stations; Intelsat IV satellite; Mathematics set theory; Satellite; Software; Studio models; System point of view; Transmitting station |
| Footage description: | J. Sparkes with map of Brazil. A model of a satellite is suspended above the map and a model of a ground transmitter is on the map. He explains how the system will operate. J. Sparkes with scale model of the Gounhillie Down Transmitter. He explains how a dish type antenna such as this receives the radio signals from space. J. Sparkes explains the superiority of the parabolic dish aerial over a circular dish. He uses cross sections of a circular and a parabolic mirror to show the focus of light beams relecting in each. The operation of the satellite is shown with a model of the Intel. Sat. 4 satellite. Shot of the Echo satellite. Sparkes explains the workings of the solar cells and the dish antennas on the Intel. Sat- 4. This satellite is similar to the one to be used for the SACI project. Computer animated diagram showing satellites in various orbits. The film then shows the orbit of a syncronous satellite being corrected. J. Sparkes with map of Brazil again, explains how the television programmes will be broadcast and received. Sparkes and F. de Mendonca discuss how SACI will affect the classroom. Sparkes takes up aerial design for the receivers in the schools. Several aerials are shown and discussed. Sparkes and Mendonca discuss technical problems that may arise in the project and how these will be dealt with. They discuss the ability of Brazilian industry to cope with the extra demand for television equipment. Sparkes and Mendonca discuss the problem of providing suitable educational materials to be broadcast to the schools. A sequence from one of the SACI mathematics lessons is shown |
| Master spool number: | 6LT/70483 |
| Production number: | 00521_2530 |
| Videofinder number: | 2157 |
| Available to public: | no |
