ABSTRACT
In 1987, Innerspace, a popular sci-fi movie showed the journey of a submarine and its pilot whose dimensions had been shrunk to travel through the body of a rabbit. The top secret miniaturization experiment goes wrong and the microscopic submarine is accidentally injected into a human body “inner space.” This movie has popularized ongoing research efforts to miniaturize systems and robots to explore a world inaccessible to humans. Many years later, at the eve of the twenty-fi rst century, we are getting close to the Innerspace dream; sugar-cube autonomous robots have become a reality. Microrobots are now coming of age. Before immersing ourselves further into the fi eld of microrobotics, let us fi rst take a brief overview of the topic to better understand what it is about, its challenges, and the promises it holds for the future generation.
