An alchemist with his assistants in his laboratory. Coloured engraving after D. Teniers the younger, 1640/1650. https://www.rawpixel.com/image/13966872/image-person-book-artFree Image from public domain licenseAn alchemist with his assistants in his laboratory. Coloured lithograph by J. Cullum, ca. 1840, after D. Teniers the… https://www.rawpixel.com/image/13953758/image-person-book-artFree Image from public domain licenseAn alchemist at his furnace, hunched over bellows. Colour etching by W. Baillie, 1792, after D. Teniers the younger. https://www.rawpixel.com/image/13957758/image-person-art-fireFree Image from public domain licenseAn alchemist at his furnace, hunched over bellows. Coloured mezzotint by H. Dawe after D. 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Free public domain CC0 image. https://www.rawpixel.com/image/7619531/vector-illustrations-public-domain-blueFree Vector from public domain licensePh.D. student researcher Junpyo (Patrick) Kwon demonstrates the technique in making a biodegradable printed circuit at… https://www.rawpixel.com/image/11072899/photo-image-hand-person-public-domainFree Image from public domain licenseChang Dou, Process Analytical Chemist, ABPDU, prepares colored liquid as part of a test on a prototype HP/HT Well Plate… https://www.rawpixel.com/image/11072890/photo-image-person-tape-public-domainFree Image from public domain licenseSamuel Romes (right), Senior Research Associate, ABPDU, Hemant Choudhary (center), Postdoctoral Researcher, Joint BioEnergy… https://www.rawpixel.com/image/11072889/photo-image-person-public-domain-technologyFree Image from public domain licenseComputer scientist Anh Luong works in a clean room at Sandia’s Center for Integrated Nanotechnologies to add patterns… https://www.rawpixel.com/image/11073091/photo-image-person-patterns-public-domainFree Image from public domain licenseU.S. Department of Agriculture, Agricultural Marketing Service, Science and Technology Program, Gastonia, North Carolina, on… https://www.rawpixel.com/image/11072783/photo-image-person-laptop-public-domainFree Image from public domain licenseU.S. Department of Agriculture, Agricultural Marketing Service, Science and Technology Program, Gastonia, North Carolina, on… https://www.rawpixel.com/image/10995834/photo-image-public-domain-technology-marketingFree Image from public domain licenseAnalytical Process Engineer, ABPDU, prepares a prototype HP/HT Well Plate Reactor during a development test by the… https://www.rawpixel.com/image/10993954/photo-image-person-woman-public-domainFree Image from public domain licenseThe STAR detector at the Relativistic Heavy Ion Collider shows endcap calorimeter electronics (blue with black cables) and… https://www.rawpixel.com/image/9648113/photo-image-planes-star-blueFree Image from public domain licenseThe original Scientific Data and Computing Center (SDCC), formerly known as the RHIC and ATLAS Computing Facility. https://www.rawpixel.com/image/9648108/photo-image-person-public-domain-computerFree Image from public domain licenseOne plane of three silicon tracker detector modules installed around the beampipe at one end of the STAR detector at the… https://www.rawpixel.com/image/9648136/photo-image-plane-star-public-domainFree Image from public domain licenseChristine Thatcher, left, and Peter McIlroy are members of the nanobody research team at Sandia National Laboratories.With a… https://www.rawpixel.com/image/9647807/photo-image-person-woman-public-domainFree Image from public domain licenseStudents at the Royalton-Hartland School District High School work on their cooking skills in the village of Middleport… https://www.rawpixel.com/image/9653212/image-hands-person-womanFree Image from public domain licenseDecember 2, 2014NASA's Journey to Marshttp://mars.jpl.nasa.gov/msl/multimedia/images/?ImageID=6829NASA is developing the… https://www.rawpixel.com/image/9975908/photo-image-astronaut-moon-spaceFree Image from public domain licenseFull Description: This illustration depicts the configuration of the Spacelab-2 in the cargo bay of the orbiter. 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