Inventions & discoveries.

Inventions and discoveries

Just the facts.

Just the facts

Just the facts (School Specialty Publishing (Firm))

The 10 best safety inventions

Ten best safety inventions

10 Discovery Series.

Canadian inventions : fantastic feats & quirky contraptions

Great Canadian stories

Great Canadian stories.

Whose bright idea was it? : True stories of inventions

True Stories of Invention

Inventions from outer space : everyday uses for NASA technology

Scientific American.

Shooting hoops and skating loops : great inventions in sports

The Chinese thought of it : amazing inventions and innovations

We thought of it

We thought of it.

100 inventions that made history : brilliant breakthroughs that shaped our world

One hundred inventions that made history

Hundred inventions that made history

Girls think of everything : stories of ingenious inventions by women

Bleeps and blips to rocket ships : great inventions in communications

A Native American thought of it : Amazing inventions and innovations

We thought of it

We thought of it.

I wonder why zippers have teeth and other questions about inventions.

Zippers have teeth

I wonder why