Clocks :
Zubrowski, Bernie.
Clocks : building and experimenting with model timepieces / by Bernie Zubrowski ; illustrated by Roy Doty. - New York, N.Y. : A Beech Tree Paperback Book, 1988. - 112 p. : ill ; 23 cm. - A Boston Children's Museum Activity Book. .
Summary : Instructions for using readily available materials to make working models of different kinds of clocks with suggested experiments to discover how they work.
The first clocks--Water clocks--Sandglasses--Mechanical clocks.
0688069258
Clocks and watches--History.
Clocks : building and experimenting with model timepieces / by Bernie Zubrowski ; illustrated by Roy Doty. - New York, N.Y. : A Beech Tree Paperback Book, 1988. - 112 p. : ill ; 23 cm. - A Boston Children's Museum Activity Book. .
Summary : Instructions for using readily available materials to make working models of different kinds of clocks with suggested experiments to discover how they work.
The first clocks--Water clocks--Sandglasses--Mechanical clocks.
0688069258
Clocks and watches--History.