This is a brief history of the development of microscopy, from the use of beads and water droplets in ancient Greece, through the simple magnifying glass, to the modern compound microscope. The technology and optical theory are developed in a straightforward manner, and this leads to a description and explanation of the most modern technologies in electron microscopy, and scanning electron microscopy as well as the new scanning probe microscopies. A series of very interesting applications of the various microscopic techniques are described. The most recent pioneering techniques in near field and confocal optical microscope technologies are described and evaluated for their future importance.
Ponds and small lakes support an extremely rich biodiversity of fascinating organisms. Many people have tried pond-dipping and encountered a few unfamiliar creatures, such as dragonfly nymphs and caddisfly larvae. However, there is a far richer world of microscopic organisms, such as diatoms, desmids and rotifers, which is revealed in this book. Anyone with access to a microscope can open up this hidden dimension. Identification keys are provided so that readers can identify, explore and study this microscopic world. There are also many suggestions of ways in which readers can then make original contributions to our knowledge and understanding of pond ecology. The book not only explores the fascinating world of the creatures within ponds and their interactions, but also explains the many ways in which ponds are important in human affairs. Ponds are being lost around the world, but they are a key part of a system that maintains our climate. In the face of climate change, it has never been more important to understand the ecology of ponds. Includes keys to: A - Traditional key to kingdoms of organisms; B - Contemporary key to kingdoms of organisms; C - Pragmatic key to groups of microorganisms; D - Algae visible, at least en masse, to the naked eye; E - Periphyton, both attached to surfaces and free living; F - Protozoa; G- Freshwater invertebrates and; H - Common phytoplankton genera in ponds.
The videographer behind the Journey to the Microcosmos YouTube channel (386K subscribers) James Weiss presents a beginner's guide to the extremely small and utterly strange life that surrounds us. James Weiss was feeling lost in life when he first discovered his interest in the microscopic world. With his own microscope and a little homespun ingenuity, he began to capture thousands of hours of stunning footage of the creatures that he found around him: the local pond, at the beach, in a puddle. What he found astounded him, and it became his mission to reveal the beauty of the microcosmos to everyone. In his fun and accessible style, interspersed with otherworldly photographs, James presents this beginner's guide to the invisible life that surrounds us. From the most simple single-celled life, to complex micro-animals, James reveals the secrets of a world that we rarely consider. Navigating the births, feasts, tragedies, idiosyncracies and deaths of a cast of tiny characters, learn how these lifeforms work and what lessons they can teach us about our own existence. Mixing scientific detail with thoughtful musings that betray the fascination at the heart of his topic, James has created a way of looking at microorganisms in an empathetic and engaging style. You'll discover fascinating absurdities: that a cell can be both its own daughter and its own mother. That immortality really does exist, and it comes in the form of a teeny, tentacled medusa. And that seeing the wonder of nature from a new perspective can literally save your life.
In nontechnical language and with 199 photographs and drawings, the author clearly explains how a microscope works and what kind to use; preparation and examination of specimens, and much more.
Zu dem Thema gibt es viele Publikationen, die von Experten für Experten geschrieben wurden. Dieses Buch wendet sich insbesondere an Studenten höherer Semester und Forscher, denen das Hintergrundwissen der Physik fehlt, um neuartige Verfahren der Fluoreszenzmikroskopie zu verstehen. Die zweite Auflage wartet mit neuen Kapiteln und einer erweiterten Einführung auf. Der Schwerpunkt liegt auf der hochauflösenden und Einzelmolekül-Mikroskopie. Jedes Kapitel wurde von einem anerkannten Experten des Fachgebiets geschrieben und sorgfältig überarbeitet, um so die Entwicklungen der letzten Jahre wiederzugeben.
Popular interest in the observation and study of freshwater invertebrates is increasing. This book meets the needs of this growing audience of naturalists, environmentalists, anglers, teachers, students, and others by providing substantive information in easy-to-understand, non-technical language for many groups of invertebrates commonly found in the streams, lakes, ponds, and other freshwater environments of North America. Section One provides background information on the biology and ecology of freshwater organisms and environments and explains why and how invertebrates can be studied, simply and without complex equipment, in the field and the laboratory. Section Two describes nearly 100 of the most common groups of invertebrates, and for each group a whole-body colour illustration is provided along with brief text pointing out the most important features that identify members of the group. Section Three contains in-depth descriptions of the life history, behaviour, and ecology of the various invertebrate groups, and explains their important ecological contributions and relationships to humans. The Guide is broad in scope, geographically and taxonomically, and it is written at a substantive yet easily accessible level that will appeal to both novices and those with more advanced knowledge of the subject. It also contains more than 100 specially commissioned colour illustrations by the well-known scientific illustrator Amy Bartlett Wright that will greatly facilitate the easy and rapid identification of specimens.