Ultrasound is perhaps best known as an imaging technique to monitor pregnancy or disease. When these sound waves are highly concentrated, however, they can be used to treat a host of diseases.
Super short X-ray pulses help scientists study materials at the atomic level. Researchers found that certain lasing effects can make these pulses even shorter.
Historian Julia Gaffield discusses her recent biography on Haiti’s first leader, whose life she argues was unfairly tarnished by biased verdicts of history.
ADHD symptoms occur on a continuum and can fluctuate dramatically based on life circumstances such as transitions to middle school, stress levels and even sleep.