Buku SMP Athalia

Bell and The Science of The Telephone

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What he sciencets say :
1. You can make a simple telephone using youghurt and a piece of string.
2. Sound can be sent by light signals in fibre-optic cables.
3. The cone shape of megaphone stops sound waves spreading out too quickly and makes them travel futher.
4. Mobile phones transmit your calls by radio waves.

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Availability

Detail Information

Series Title

-

Call Number

925 Wil b

Publisher

- : Book House., 2004

Collation

24 cm : 32 hlm

Language

Inggris

ISBN/ISSN

1-904642-52-7

Classification

925

Content Type

-

Media Type

-

Carrier Type

-

Edition

-

Subject(s)

Biografi Ahli Sains

Specific Detail Info

-

Statement of Responsibility

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Other version/related

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