https://www.inventionandtech.com/ en https://www.inventionandtech.com/content/mount-wilson-observatory-100-inch-hooker-telescope <span>Mount Wilson Observatory, 100-inch Hooker Telescope</span> <div class="field field--name-field-image-site-img field--type-image field--label-hidden field__item"> <img src="/sites/default/files/styles/landmark_node_/public/landmarks/images/100-inch_Hooker_Telescope.jpg?itok=XIC3fg6y" width="250" height="376" typeof="foaf:Image" /> </div> <span><span lang="" typeof="schema:Person" property="schema:name" datatype=""> (not verified)</span></span> <span>Wed, 07/25/2012 - 03:39</span> <div class="field field--name-field-society field--type-entity-reference field--label-inline"> <div class="field__label">Society</div> <div class="field__item"><a href="/category/society/asme" hreflang="en">ASME</a></div> </div> <div class="field field--name-field-main-category field--type-entity-reference field--label-inline"> <div class="field__label">Main Category</div> <div class="field__items"> <div class="field__item"><a href="/category/main-category/mechanical" hreflang="en">Mechanical</a></div> </div> </div> <div class="field field--name-field-sub-category field--type-entity-reference field--label-inline"> <div class="field__label">Sub Category</div> <div class="field__items"> <div class="field__item"><a href="/category/subcategory/research-and-development" hreflang="en">Research and Development</a></div> </div> </div> <div class="field field--name-field-era field--type-entity-reference field--label-inline"> <div class="field__label">Era</div> <div class="field__item"><a href="/category/period/1910-1919" hreflang="en">1910-1919</a></div> </div> <div class="field field--name-field-date-created field--type-entity-reference field--label-inline"> <div class="field__label">Date Created</div> <div class="field__item"><a href="/category/date-created/1918" hreflang="en">1918</a></div> </div> <div class="field field--name-field-location-country field--type-string field--label-inline"> <div class="field__label">Location Country</div> <div class="field__item">us</div> </div> <div class="field field--name-field-coordinates field--type-geolocation field--label-inline"> <div class="field__label">Coordinates</div> <div class="field__item"><span typeof="Place"> <span property="geo" typeof="GeoCoordinates"> <meta property="latitude" content="34.2249"> <meta property="longitude" content="-118.0566"> </span> <span class="geolocation-latlng">34.2249, -118.0566</span> </span> </div> </div> <div class="field field--name-field-city field--type-string field--label-inline"> <div class="field__label">City</div> <div class="field__item">Pasadena</div> </div> <div class="field field--name-field-state field--type-entity-reference field--label-inline"> <div class="field__label">State</div> <div class="field__item"><a href="/category/state/ca" hreflang="en">CA</a></div> </div> <div class="field field--name-field-country field--type-entity-reference field--label-inline"> <div class="field__label">Country</div> <div class="field__item"><a href="/category/country/usa" hreflang="en">USA</a></div> </div> <div class="field field--name-field-website field--type-link field--label-inline"> <div class="field__label">Website</div> <div class="field__items"> <div class="field__item"><a href="http://www.asme.org/about-asme/history/landmarks/topics-m-z/research-and-development/-66-mount-wilson-observatory,-100-inch-hooker-tele">http://www.asme.org/about-asme/history/landmarks/topics-m-z/research-and-develo…</a></div> </div> </div> <div class="field field--name-field-creator field--type-entity-reference field--label-inline"> <div class="field__label">Creator</div> <div class="field__items"> <div class="field__item"><a href="/category/inventor/pease-francis-g" hreflang="en">Pease, Francis G. </a></div> <div class="field__item"><a href="/category/inventor/hale-george-ellery" hreflang="en">Hale, George Ellery </a></div> </div> </div> <div class="field field--name-body field--type-text-with-summary field--label-hidden field__item">The increased light-grasp of this telescope made possible many notable advances in structural cosmology between 1924 and 1930, which have revised our ideas about the universe. One of these advances was that spiral nebulae are galactic units like our own; another was the idea of an expanding universe. George Ellery Hale began planning this project in 1906; Francis G. Pease was the chief designer and mechanical engineer. The telescope's mirror support and the use of mercury flotation to reduce the friction are among its outstanding mechanical engineering features.</div> <div class="field field--name-field-landmark-tags field--type-entity-reference field--label-inline"> <div class="field__label">Tags</div> <div class="field__items"> <div class="field__item"><a href="/category/keyword/mount" hreflang="en">Mount</a></div> <div class="field__item"><a href="/category/keyword/wilson" hreflang="en"> Wilson</a></div> <div class="field__item"><a href="/category/keyword/observatory" hreflang="en"> Observatory</a></div> <div class="field__item"><a href="/category/keyword/cosmology" hreflang="en"> Cosmology</a></div> <div class="field__item"><a href="/category/keyword/spiral-nebulae" hreflang="en"> Spiral Nebulae</a></div> <div class="field__item"><a href="/category/keyword/galactic" hreflang="en"> Galactic</a></div> <div class="field__item"><a href="/category/keyword/universe" hreflang="en"> Universe</a></div> <div class="field__item"><a href="/category/keyword/hale" hreflang="en"> Hale</a></div> <div class="field__item"><a href="/category/keyword/pease" hreflang="en"> Pease</a></div> <div class="field__item"><a href="/category/keyword/telescope" hreflang="en"> Telescope</a></div> <div class="field__item"><a href="/category/keyword/mercury-flotation" hreflang="en"> Mercury Flotation</a></div> <div class="field__item"><a href="/category/keyword/mercury-flotation" hreflang="en"> Mercury Flotation</a></div> </div> </div> <div class="field field--name-field-image-credit field--type-string-long field--label-inline"> <div class="field__label">Image Credit</div> <div class="field__item">Courtesy Flickr/Bruce Irving (CC BY 2.0)</div> </div> <div class="field field--name-field-image-caption field--type-string-long field--label-inline"> <div class="field__label">Image Caption</div> <div class="field__item">Mount Wilson Observatory, 100-inch Hooker Telescope</div> </div> Wed, 25 Jul 2012 07:39:46 +0000 Anonymous 80309 at https://www.inventionandtech.com