News
- Physics
Why isn’t the sky violet, Daddy?
A new analysis of why the sky looks blue reveals that the reason may be the combined effects of the atmosphere and of our eyes' color-sensing apparatus.
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Bipolar kids harbor unique brain trait
Children and teenagers with bipolar disorder, a severe mental ailment that involves sharp mood swings, display unusually low tissue volume in a brain area involved in learning to regulate emotions.
- Physics
In search of the imperfect nanocrystal
Semiconductor nanocrystals can incorporate property-enhancing impurities into their growing structures as long as the crystals have facets onto which such atoms can strongly adhere.
- Earth
Weighty evidence on testicular cancer
New evidence supports a theory that men who were exposed to excess estrogenic hormones at an early stage of fetal development may face an elevated risk of testicular cancer.
