| Index: > A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
|
|||||
Binnig graduated from Johann Wolfgang Goethe University in Frankfurt and received a doctorate from the University of Frankfurt in 1978. He then joined the IBM Research Laboratory in Zurich, where he and Rohrer designed and built the first scanning tunneling microscope. This instrument produces images of the surfaces of conducting or semiconducting materials in such fine detail that individual atoms can be clearly identified.
Quantum mechanical effects cause an electric current to pass between the extremely fine tip of the STM's tungstenThis article is about the chemical element. Tungsten may also refer to the Tungsten Handheld PDA. Tungsten (formerly Wolfram is a chemical element in the periodic table that has the symbol W ( L. Wolframium and atomic number 74. A very hard, heavy, steel- probe and the surface being studied, and the distance between the probe and the surface is kept constant by measuring the current produced and adjusting the probe's height accordingly. By recording the varying elevations of the probe, a topographical map of the surface is obtained on which the contour intervals are so small that individual atoms are clearly recognizable. The tip of the STM's probe is only about one angstromAn angstrom or ngstrom is a non- SI unit of length equal to 10−10 metres, 0. 1 nanometres or 100 picometres. The angstrom is named after the Swedish physicist Anders Jonas Angstrom, one of the founders of spectroscopy. It is often used for expressin wide (one ten-billionth of a metre, or about the width of an atom), and the distance between it and the surface being studied is only about 5 or 10 angstroms.In 1984 Binnig joined the IBM Physics Group in MunichMunich ( German: Munchen ) is the state capital of the German Bundesland of Bavaria. Behind Berlin and Hamburg, Munich is Germany's third largest city with a population of about 1. 261 million ( as of 2003). It is located on the river Isar. History The se. In 19891989 is a common year starting on Sunday (click on link for calendar). Events January January 7 Akihito becomes Emperor of Japan following the death of Hirohito. The Heisei period begins January 8 the Kegworth Air Disaster A British Midland Boeing 737 cra he published the book Aus dem Nichts (Out of Nothing), which posited that creativity grows from disorder.