大象传媒

Science in Action Light, Sound and Measurement Clips

1. Calculating the speed of light

   Duration: 04:05

2. How long does it take light from the stars to reach Earth?

   Duration: 03:14

3. Pepper's Ghost

   Duration: 03:27

4. How insulation reduces reverberation

   Duration: 01:09

5. Light source and reflection

   Duration: 00:24

6. Reverberation of sound

   Duration: 01:55

7. Lateral inversion

   Duration: 01:02

8. The rate of vibration or frequency

   Duration: 00:53

9. How does sound travel through solids?

   Duration: 02:20

10. Reflective materials in road safety

    Duration: 02:32

11. How does sound travel through liquid?

    Duration: 01:20

12. Reflectors and light sources

    Duration: 00:46

13. Developments in reflective safety clothing

    Duration: 00:35

14. Vibrations and sound waves

    Duration: 00:42

15. The relationship between amplitude and loudness

    Duration: 01:37

16. The relationship between vibrations and sound

    Duration: 01:38

17. How light can be reflected and distorted

    Duration: 01:55

18. How does sound travel through air?

    Duration: 01:19

19. Mirrors and angles

    Duration: 02:03

20. Can the right frequency and amplitude break glass?

    Duration: 01:00

21. Echo or sound reflection and its uses

    Duration: 01:10

22. Using a mirror to light a room

    Duration: 02:39

23. Lighting a room

    Duration: 00:36

24. How light travels

    Duration: 01:21