TY  - BOOK
AU  - Perelman,Y.
TI  - Physics for entertainment / 
U1  - 530 
PY  - 1975///-1980
CY  - Moscow
PB  - Mir, 
KW  - Physics
KW  - Gravimetry
KW  - Weight
KW  - Motion
KW  - Liquids
KW  - Gases
KW  - Rotation
ER  -