The Hindu
A LED-based signal installed on Anna salai in Chennai... Photo: M. Moorthy
LEDs disrupt sleep
In the frenetic, coffee-fuelled lives of today, too many people are not getting enough sleep. Modern light-emitting diodes (LEDs) used in energy-efficient lighting as well as television and compute...
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Cockroaches evolving to avoid sugary baits
Cockroach loses its sweet tooth! A strain of cockroaches have outsmarted human efforts to kill them by evolving taste buds that make sweet insecticide baits taste bitter, scientists have found.»
‘Bilateral mastectomy is not a foolproof method’
The link between harbouring deleterious mutations in BRCA1 and BRCA2 genes and the risk to breast cancer and ovarian cancer, is not absolute. This means if 100 ladies have the same deleterious mut...
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Stephen Hawking now in comic books
People can now learn about the life and times of famed physicist Stephen Hawking in a comic book.
The British scientist is featuring as a comic book character for an illustrated series ab...
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Iceberg flotation
Why is a large part of an iceberg under water though ice is lighter than water?
V. RAJALAKSHMI
Chennai
Ice floats in water because it is lighter (less dense) than...
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