The Boy's Book of Inventions

This is a depiction of nitrogen when it is pressurized, cooled, and condensed into a liquid. The book uses this illustration along with descriptions to convey this to the reader. The type of explosion and exothermic reaction is properly conveyed by…

Baker uses the concepts of kites to explain concepts of aerodynamics and fluid mechanics. The image helps convey the flow of air to a child who doesn't understand how a "tailless" kite works. Additionally, the cut in the middle was not conveyed with…

The phonograph is used to describe the concept of waves and sound travel. This example makes concepts clearer for kids. Depictions of how waves can travel through space and be utilized makes their properties more clear than words can describe.

R-ray photograph was a new concept and was used to explain the importance and applications of the waves of lights. The fact that the picture shows that X-rays can go through that layers of skin and muscle explains to kids how powerful these X-rays…

The title page includes various products and technologies that the reader will be learning about in the book. This summarizes the books overall message. The depictions of the concepts can give the reader a proper preview of what they are about to…

This depicts the application of fluid dynamics through the explanation of how a submarine works. The book addresses how a high-pressure air system keeps out water from getting in. A child who is trying to understand concepts of fluid dynamics will be…

This explains the formation of "liquid air" in a visual manner and labels the processes used to do this in order for the readers to understand. The setup allows the reader to understand how the experiment is conducted, something that words cannot do.