IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This hourglass is part of an ...
THE letter of Mr. Phillip in NATURE of April 9 led me to examine some tubes containing radium salt which have been in my possession for some years. Some had become very purple owing to the action of ...
ON many occasions attention has been directed to the coloration of glass and quartz by the rays from radium. The coloration of glass is generally connected with the presence of manganese or lead, and ...
Long before scientists split the atom, quacks and con artists were splitting the profits. Marie and Pierre Curie’s pioneering scientific work was 50 years old before America dropped the A-bomb. But ...
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