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Publisher's Summary

In this issue:

"A Quantum Threat to Special Relativity": A quantum effect that has recently presented a serious problem to Einstein's special theory of relativity, thus shaking the foundations of physics.

"Saving New Brain Cells": New research that suggests the more fresh neurons are challenged - the more they flourish.

"New Tactics against Tuberculosis": What scientists are doing to combat one of the leading causes of death throughout the world.

"Monitoring for Nuclear Explosions": Why the detection of nuclear weapons testing has become so effective.

"The World's Smallest Radio": How a single carbon nanotube can function as a radio that detects and plays songs.

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