Uncategorized
- Earth
Hued Afterglow: Fingerprinting diamonds via phosphorescence
The eerie phosphorescence displayed by a rare form of blue diamond can be used as an easy, cheap, and nondestructive way to identify individual gemstones and to distinguish natural blue diamonds from synthetic ones.
- Health & Medicine
Risky DNA: Autism studies yield fresh genetic leads
Two new studies point to the diverse genetic roots of autism and related developmental disorders, while other evidence questions the claim that mercury-based childhood vaccines have contributed to rising autism rates.
- Math
Small Infinity, Big Infinity
A mathematician develops a new proof showing that infinity comes in different sizes.
- Humans
Letters from the January 12, 2008, issue of Science News
Shades of meaning In “Going Coastal: Sea cave yields ancient signs of modern behavior” (SN: 10/20/07, p.
