Uncategorized
- Health & Medicine
Gene may keep breast cancer at bay
Scientists have identified a gene that seems to protect against some common breast cancers.
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19156
This article asserts that the earliest photographic image was taken in 1826. In fact, the earliest photographic image may date to much earlier. Using silver nitrate on linen (1992) and later silver sulfate (1994), Nicholas P.L. Allen was able to reproduce, in large part, the unique visual and chemical properties of the Shroud of Turin. […]
- Chemistry
Photography at a Crossroads
Researchers are racing to understand the chemical processes used during the past 2 centuries to make photographs before digital-imaging techniques take over completely.
