The present book relates the history of views, the development of ideas, often ones that are still in the making.What does emptiness consist of? On the face of it, this question seems senseless. Emptiness is called emptiness precisely because it consists of noting. But this is not exactly so. Absolute emptiness "exists" only theoretically. Real empty space, however, is not a simple void. It is a physical vacuum, a complex intermixture of spontaneously appearing and immediately vanishing fields. The deeper we penetrate into the region of ultrasmall scales, the more complex and rich properties of does this void - the vacuum - become.If we descend farther and farther down, distances represented by decimal with 32 zeroes following the decimal point (10^-33 cm, a quantity difficult even to conceive), we shall find something entirely fantastic. Space resembles a sponge or a foamlike structure. It is a vacuum foam, undulating, continuously changing its shape and consisting of self-closing spatial bubbles.All of this is vividly and fascinating dealt with in this book by Soviet science writer Roman Podolny. Historical events and analogies, "crazy" hypotheses and rigorous conclusions of theoreticians, interviews with well known physicists, all this you will find in Something Called NothingThe book was translated from the Russian by Nicholas Weinstein, and was first published by Mir Publishers in 1986.ContentsPreface 5To the Reader 9DOES THE VOID EXIST? 15THE FIFTH "ELEMENT" 27In Place of Emptiness 27The Genealogy of the Ether 28An Answer to All Problems 31Grandeur and Fall of the Ether 51NOTHING AND SOMETHING 66Above the Dirac Sea 66An Ocean Beyond the Ocean 72Simplicity of the Complex and the Complexity of the Simple 79All the Powers of the World 88Variable Vacuum 116Laws and Forbiddances 122Mathematics for Physics 127The Fruitbearing Void 136Beyond the Power of Even Vacuum 150Around and About the Neutrino 151A Physics Laboratory in the Ocean Depths 154Amazed by Our Own Achievements 161What Ether and Vacuum Have in Common and Differ in 169NOTHING AND EVERYTHING 172Beyond the Sea of Dirac or Everything is Nothing 174Canvas and Paints 184Is Everything Vacuum? 190Notes on the Margin of Our Picture of the World 198On the Brink of Remarkable Discoveries 206In Place of a Conclusion 212