44 research outputs found
Absorption spectroscopy on the argon first excited state in an expanding thermal arc plasma
Why Shakespeare Was Not a Relativist and Why it Matters Now
The extremes of sectarian fanaticism and Machiavellian relativism were both prominent in Shakespeare's day. It was an era of religious strife, incipient nationalism, growing monarchical absolutism, and also of “liberated” Machiavellian cynicism and “will to power”—no “golden age” of moral certainty and equanimity. Somehow, the literary genius of Shakespeare not only avoided these extremes or heresies but implicitly or explicitly critiqued them all, providing a permanent legacy of vivid moral commentary, exhortation, and illustration. This legacy has had an incalculably great ethical influence on the thought, sensibility, and education of English-speaking peoples across four centuries and several continents. Particularly in its nondenominational critique of relativism, it is a precious educational resource that eloquently affirms the fundamental reality of ethics for the person who would be truly human. Ordered liberty is always imperilled by its counterfeit and competitor—licentious libertinism. Shakespeare loved the former and hated the latter, with enduring effect. </jats:p
Femtosekunden‐Dynamik in Metallen — das kurze Leben heißer Elektronen
Die Dynamik elektronischer Anregungen hat fundamentale Bedeutung für viele physikalische Eigenschaften von Festkörpern. In Metallen relaxieren angeregte Elektronen über schnelle Streuprozesse mit Elektronen und Phononen innerhalb von nur wenigen Femtosekunden. Erst die jüngsten Fortschritte in der Ultrakurzzeit‐Laserspektroskopie ermöglichen es, diese Prozesse zeitaufgelöst zu beobachten. Der folgende Beitrag soll eine kurze Einführung in die zeitaufgelöste Photoemission geben und, anhand ausgewählter Beispiele, die vielfältigen Möglichkeiten zeigen, die diese Methode für die Untersuchung der Elektronendynamik verschiedener Metalle im Femtosekunden‐Bereich eröffnet
