Available online
Description
The programme is concerned with photons which are quanta of sound rather than light. The first part deals with a background. The second part deals with an experiment at Exeter university which purp...orts to have demonstrated the existence of photons in liquid helium using a secondary effect: the acoustic analogue of the photo-electric effect.
The programme is concerned with photons which are quanta of sound rather than light. The first part deals with a background. The second part deals with an experiment at Exeter university which purp...orts to have demonstrated the existence of photons in liquid helium using a secondary effect: the acoustic analogue of the photo-electric effect.
| Module code and title: | S272, The physics of matter |
|---|---|
| Item code: | S272; 08 |
| First transmission date: | 13-07-1986 |
| Published: | 1986 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:25:00 |
| + Show more... | |
| Producer: | Ted Smith |
| Contributors: | Graham Farmelo; Stuart Freake |
| Publisher: | BBC Open University |
| Keyword(s): | Acoustic analogue; Discrete energies; Helium liquid; Max Plank; Oscillators; Photo-electric effect; Quantum mechanics |
| Subject terms: | Einstein, Albert,; Phonons; Quantum theory |
| Master spool number: | HOU5091 |
| Production number: | FOUS377B |
| Videofinder number: | 1803 |
| Available to public: | no |
