Sticky: The Secret Science of Surfaces

Friction is a fundamental force that shapes the manufactured and natural worlds, and understanding it is essential for many applications. Laurie Winkless explores how friction shapes these worlds and describes how our understanding of surface science has given us an ability to manipulate stickiness. However, friction still has surprises up its sleeve, and we need to continue to explore its mysteries to fully understand it.

Format: Paperback / softback
Length: 336 pages
Publication date: 23 February 2023
Publisher: Bloomsbury Publishing PLC

Sticky: How Friction Shapes Our World is a captivating exploration of how friction shapes both the manufactured and natural worlds, written by Laurie Winkless. It delves into the fascinating world of surface science, revealing how our understanding of friction has given us the ability to manipulate stickiness at the atomic level. However, Winkless cautions that despite our apparent success, friction still holds some surprises. In this book, she seeks out the answers to these questions from experts scattered across the globe, uncovering a stack of scientific mysteries along the way.

Friction plays a crucial role in our daily lives, affecting everything from the air molecules that cling to us as we walk to the non-stick pan on our stove. It is responsible for the grip that keeps us safe when we hit the road, whether powered by pedal or engine. Winkless highlights the many ways in which friction shapes our world, from the Post-it note and glue in our desk drawer to the rumbling of the Earth deep beneath our feet.

One of the key insights in Sticky is the understanding that friction operates on and between surfaces. Winkless explains that friction is a force that arises when two surfaces come into contact and resist each other's motion. This resistance can be measured in terms of the force required to move one surface over the other, and it can vary depending on the properties of the surfaces involved.

One of the most fascinating aspects of friction is its ability to be manipulated. Scientists have developed a range of techniques to control friction, including lubrication, surface modification, and the use of nanotechnology. Lubrication involves adding a thin layer of oil or grease to the surfaces in contact, which reduces the friction between them. Surface modification involves changing the surface properties of the materials, such as their roughness or texture, to reduce friction. Nanotechnology involves the use of tiny particles to create a surface with a unique structure that reduces friction.

One of the most significant applications of friction control is in the field of transportation. Friction can cause wear and tear on vehicles, which can lead to increased fuel consumption and reduced performance. By reducing friction, scientists have been able to develop more efficient and environmentally friendly vehicles. For example, the use of aerodynamic designs has reduced the friction between the air and the vehicle, which has led to increased fuel efficiency.

Friction also plays a crucial role in the natural world. It is responsible for the formation of ice, which transforms waterways each winter. Ice is formed when water molecules come into contact with each other and form a solid structure. Friction can also cause the movement of rocks and soil, which can lead to the formation of mountains and valleys.

However, friction can also be a source of harm. For example, friction can cause injuries when people fall or slip. It can also cause damage to equipment and structures. To prevent these harms, scientists have developed a range of safety measures, including the use of safety equipment, the design of safe structures, and the training of workers.

In addition to its practical applications, friction has also been the subject of scientific research for many years. Scientists have studied the properties of friction, including its strength, duration, and direction. They have also developed models to predict the behavior of friction in different situations.

One of the most significant discoveries in friction research is the discovery of the triboelectric effect. The triboelectric effect occurs when two materials come into contact and exchange electrons. This exchange of electrons can create a charge on the surface of the materials, which can lead to the formation of static electricity. Static electricity can be dangerous, and it can cause fires and explosions.

Scientists have also developed a range of technologies to harness the triboelectric effect. For example, the use of triboelectric nanogenerators has been developed to convert mechanical energy into electrical energy. This technology has the potential to provide a clean and renewable source of energy for many applications.

However, friction also has some limitations. One of the most significant limitations is the fact that friction is a non-linear force. This means that the force required to move one surface over the other can vary depending on the speed and direction of the motion. This can make it difficult to control friction in certain situations.

To address this limitation, scientists have developed a range of techniques to control friction in non-linear situations. For example, the use of feedback control systems has been developed to control the motion of a vehicle. Feedback control systems use sensors to measure the speed and direction of the motion and then adjust the force applied to the wheels to maintain a constant speed.

In conclusion, Sticky: How Friction Shapes Our World is a captivating exploration of how friction shapes both the manufactured and natural worlds. It reveals how our understanding of friction has given us the ability to manipulate stickiness at the atomic level, but it also cautions that friction still holds some surprises. By exploring the many ways in which friction shapes our world, Winkless has provided a valuable resource for anyone interested in science and engineering.

Weight: 234g
Dimension: 128 x 197 x 36 (mm)
ISBN-13: 9781472950857