Uncategorized
- Health & Medicine
Sauna use among dads linked to tumors in children
Men who expose themselves to excessive heat in the weeks before they conceive children may place their future offspring at unnecessary risk of brain cancer.
- Astronomy
Cosmic bigness
Astronomers have found the largest structures ever discovered in the universe.
- Paleontology
Bone Hunt
Science News reporter Sid Perkins recounts the trials and tribulations of digging for dinosaurs in central Montana.
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19722
There is a serious limitation to the “print clock” technique described in this article that can probably be addressed. The method proposed holds good only for works with small print runs (such as expensive maps), where the damage to the printing surface in successive printings is minor in comparison to deterioration over time.
