What are the world's biggest ships? What is a 'smart' bomb? You'll ifnd the answers to these and over 100 other intriguing questions inside this superbly illustrated book.
Find out more about the design and technology of some of the most widely used mechanisms, such as pulleys, gears and wedges. Detailed diagrams and simple experiments give you an in depth understanding of the basic principles behind each mechanism. Have fun using mechanisms to make four different machines for yourself, including a well, a spring balance and a toy van by followinig illustrated st…
Scissors are commonly found on school supplies lists, but most students don't recognize them for the simple machines they are. This exploration of school buildings and grounds encourages critical thinking to uncover the simple machines that are often taken for granted and teaches basic physical science concepts in a fun way.