, but this code // executes before the first paint, when

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is not yet present. The // classes are added to so styling immediately reflects the current // toolbar state. The classes are removed after the toolbar completes // initialization. const classesToAdd = ['toolbar-loading', 'toolbar-anti-flicker']; if (toolbarState) { const { orientation, hasActiveTab, isFixed, activeTray, activeTabId, isOriented, userButtonMinWidth } = toolbarState; classesToAdd.push( orientation ? `toolbar-` + orientation + `` : 'toolbar-horizontal', ); if (hasActiveTab !== false) { classesToAdd.push('toolbar-tray-open'); } if (isFixed) { classesToAdd.push('toolbar-fixed'); } if (isOriented) { classesToAdd.push('toolbar-oriented'); } if (activeTray) { // These styles are added so the active tab/tray styles are present // immediately instead of "flickering" on as the toolbar initializes. In // instances where a tray is lazy loaded, these styles facilitate the // lazy loaded tray appearing gracefully and without reflow. const styleContent = ` .toolbar-loading #` + activeTabId + ` { background-image: linear-gradient(rgba(255, 255, 255, 0.25) 20%, transparent 200%); } .toolbar-loading #` + activeTabId + `-tray { display: block; box-shadow: -1px 0 5px 2px rgb(0 0 0 / 33%); border-right: 1px solid #aaa; background-color: #f5f5f5; z-index: 0; } .toolbar-loading.toolbar-vertical.toolbar-tray-open #` + activeTabId + `-tray { width: 15rem; height: 100vh; } .toolbar-loading.toolbar-horizontal :not(#` + activeTray + `) > .toolbar-lining {opacity: 0}`; const style = document.createElement('style'); style.textContent = styleContent; style.setAttribute('data-toolbar-anti-flicker-loading', true); document.querySelector('head').appendChild(style); if (userButtonMinWidth) { const userButtonStyle = document.createElement('style'); userButtonStyle.textContent = `#toolbar-item-user {min-width: ` + userButtonMinWidth +`px;}` document.querySelector('head').appendChild(userButtonStyle); } } } document.querySelector('html').classList.add(...classesToAdd); })(); Davis Young | 黄大仙高手论坛

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Dr. Davis Young

Professor Emeritus

Biography

  • Hometown: Abington, Pennsylvania
  • Hobbies include birding (life list of 1000 species), and listening to music by Gustav Mahler and Anton Bruckner

Education

  • Received B.S.E. at Princeton University, 1962
  • Received M.S. at Pennsylvania State University, 1965
  • Acquired Ph.D. at Brown University, 1969

Professional Experience

  • Began teaching at New York University (1968-1973)
  • Switched to University of North Carolina at Wilmington (1973-1978)
  • Began teaching at Calvin in 1978
  • Retired in Tuscan, AZ, in 2004
  • Returned to Grand Rapids in 2014
  • Co-author of 10 books on the history of geology and the relationship between christian faith and geology
  • 2009 Mary C. Rabbit History of Geology Award Recipient

Academic Interests

  • Publication of For Me to Live Is Christ, a biography of my father, Old Testament scholar, Edward J. Young.
  • Editing of Recollections of a Petrologist, a 500+ page autobiographical memoir byJoseph Paxson Iddings, America鈥檚 premier igneous petrologist of the late nineteenth and early twentieth century.
  • Research on the doctrine of creation in regard to the scientific enterprise.
  • The history of igneous petrology
  • The integration of science and Christian faith