Discoveries and Inventions of the Twentieth Century
Routledge Revivals Series

The book is written for those, young and old, who wish to have a non-technical account of the great scientific and material triumphs which man has achieved and is achieving in their own day; and it seemed desirable to give first place to those theories, facts, and accomplishments which are now exercising the greatest influence upon human life. For science exists not so much to tickle the intelligences of the few as to brighten the lot of the many.

1.The revival of water power 2.Coal, gas and petroleum 3. Steam power 4.Gas, petrol, and oil engines 5. Generation and transmission of electricity 6. Electric lighting and heating 7.Speed and economy in factor and workshop 8. Foundry and forge 9.The electric furnace and its applications 10.The artificial production of cold and its applications 11.Soil and crops 12.Railways 13.Electric traction 14.Motor cars 15.Modern ships 16.The conquest of the air 17.Wireless telegraphy 18.Ships of war and their weapons 19.Some applications of photography 20.Radium, electricity, and matter Index