tiny semiconductor particles

DAZZLING DOTS  Tiny semiconductor particles called quantum dots light up mouse intestines in this microscope image. Red and green represent proteins illuminated by fluorescing quantum dots. Cell nuclei are stained blue with a traditional dye not involving quantum dots.

young man vaping

DANGERS OF VAPING  E-cigarettes have surpassed cigarettes as the most commonly used tobacco product among teenagers. Medical researchers are sounding the alarm.

RADIO REFLECTIONS  To send messages via the moon, ham radio operators send radio waves some 384,000 kilometers to the Earth’s natural satellite. The waves bounce and hopefully are received by a ham radio user somewhere else.

LURE OF LEMURS  Alison Jolly began the first long-term field study of ring-tailed lemurs in 1962. She dedicated much of her later career to conservation efforts, as she details in Thank You, Madagascar.

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