Small Inventions That Made a Big Difference

Pockets, matches, spectacles, postage stamps.
Whether it''s the stitches that hold our clothes together or the syringes that deliver life-saving vaccines, small things really do make a big difference. Yet these modest but essential components of everyday life are often overlooked.
Science and comedy writer Helen Pilcher shares the unexpected stories of 50 humble innovations - from the accidental so...