Available online
Description
This programme is about the invisible force field of magnetism which surrounds the Earth. Sensitive compasses have been used to map the intensity and direction of the magnetic field and recently sa...tellites have extended this data. The programme ends by considering two models for the origin of the Earth's magnetic field, a beautifully constructed Victorian globe (Wilde's magnetarium) and a modern self-excited dynamo model.
This programme is about the invisible force field of magnetism which surrounds the Earth. Sensitive compasses have been used to map the intensity and direction of the magnetic field and recently sa...tellites have extended this data. The programme ends by considering two models for the origin of the Earth's magnetic field, a beautifully constructed Victorian globe (Wilde's magnetarium) and a modern self-excited dynamo model.
| Module code and title: | S102, Science: a foundation course |
|---|---|
| Item code: | S102; 06 |
| Recording date: | 18-02-1987 |
| First transmission date: | 13-03-1988 |
| Published: | 1988 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:25:00 |
| + Show more... | |
| Producer: | Tony Jolly |
| Contributors: | Geoff Brown; Geoff Yarwood |
| Publisher: | BBC Open University |
| Keyword(s): | Aurora Boreal; Northern lights; Volcanic ridge |
| Subject terms: | Satellites; Geomagnetism |
| Master spool number: | HOU5670 |
| Production number: | FOUS470T |
| Videofinder number: | 1171 |
| Available to public: | no |
