Monthly Archive: December 2019

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How does a fully charged mobile phone lose its charge when left unused? Curiosity corner

Q: How does a fully charged mobile phone lose its charge when left unused for several days together? Answered by Kingshuk Roy IISER, Pune Lithium-ion battery chemistries are associated with self-discharge phenomena. A passivation layer develops on the electrodes over time (on performing several charging-discharging cycles) which results...

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Testosterone: The Making of a Man-Quest special

Aggression, boldness, and brawn are all adjectives our society might apply when describing the testosterone-driven male. But the true effects of testosterone are much more subtle and varied than these descriptors would suggest. The DW Documentary series examines the truths behind the most important male hormone with the...