laser emission line
31STED microscopy — Stimulated Emission Depletion microscopy, or STED microscopy, is a technique that uses the non linear de excitation of fluorescent dyes to overcome the resolution limit imposed by diffraction with standard confocal laser scanning microscopes and… …
32Interference (wave propagation) — Two point interference in a ripple tank. In physics, interference is the phenomenon in which two waves superpose each other to form a resultant wave of greater or lower amplitude. Interference usually refers to the interaction of waves that are… …
33Johan Sebastiaan Ploem — Infobox Scientist name = Johan Sebastiaan Ploem image width = 200px birth date = birth date and age|1927|08|25 birth place = Sumatra, Indonesia nationality = Dutch field = Advanced Microscopy; Molecular Diagnostics; Digital Painting work… …
34Liquid crystal — Schlieren texture of liquid crystal nematic phase Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal.[1] For instance, an LC may flow like a liquid, but its… …
35Mikoyan MiG-35 — For the aircraft previously incorrectly known as MiG 35, see Mikoyan Project 1.44. MiG 35 …
36Coherence (physics) — In physics, coherence is a property of waves that enables stationary (i.e. temporally and spatially constant) interference. More generally, coherence describes all properties of the correlation between physical quantities of a wave. When… …
37Fermi paradox — The Fermi paradox is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations and the lack of evidence for, or contact with, such civilizations.The extreme age of the universe and its …
38Search for Extraterrestrial Intelligence — SETI ist das Akronym für “Search for Extraterrestrial Intelligence” (deutsch: „Suche nach außerirdischer Intelligenz“). Damit bezeichnet man die Suche nach außerirdischen Zivilisationen. Seit 1960 werden verschiedene wissenschaftliche… …
39Coronium — A solar eclipse Coronium was the name of a suggested chemical element, hypothesised in the 19th century. It was named after the solar corona. During the total solar eclipse of 7 August 1869, a green emission line of wavelength 530.3 nm was… …
40Metrication controversy — The introduction of the metric system has faced some opposition in a number of countries over the past two centuries. Based on a previous U.S. Metric Association and recent CIA survey it is commonly cited that only the United States of America,… …
