Breathing polluted air affects your lung health now and in the future. Smog hanging over cities is the most familiar and obvious form of air pollution. But there are different kinds of pollution. Some visible is visible to the eye, some invisible, but it all contributes to global warming. Generally, any substance that people introduce … Continue reading
This simple writing device has fired the imagination of many spy stories and movies. Authors such as Ian Fleming have had spy pens carry Class 4 explosive devices, containing poisonous darts, or simply use a pen camera for recording secret documents. They conjure images of 007, James Bond and Q Branch. Besides explosions, poison and … Continue reading
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