Notebook
-
From Science News Letter, August 30, 1958
NO “SAFE” RADIATION DOSE — There is no period of safety after exposure to harmful radiation, a geneticist reports. Radiation has been found to affect the primitive germ cell from which the sperm develops. Chromosome abnormalities may be transmitted to offspring in dangerous numbers for a long time after irradiation of the male. This also […]
-
From Science News Letter, August 16, 1958
From the "Notebook" page of the Aug. 30, 2008, Science News.
- Archaeology
From Science News Letter, August 2, 1958
PORCUPINES GNAWED ON STONE AGE MAN’S TOOLS — Razor sharp edges on some of the bone chisels of Middle Stone Age man in Africa were found to have been put there by the needle-sharp front teeth of porcupines, Dr.
