TY  - BOOK
AU  - Casanellas,Antonio
TI  - Great Discoveries & Inventions That Helped Explore Earth & Space
SN  - 0-8368-2584-5
PY  - 2000///
CY  - Milwaukee, WI
PB  - Gareth Stevens Publishing
KW  - Astronautics
KW  - Great Discoveries & Inventions
KW  - Science experiments
KW  - Outer space
KW  - Exploration
N2  - Explains how early inventions, including those of the sundial and  compass, as well as more recent discoveries, have helped           scientists explore outer space.  Includes science experiments
ER  -