Baseball players will tell you that a fastball can rise - and elementary physics says it can also, the same way an airplane rises because the teardrop shape of a wing causes air to go over the top faster than below the flatter bottom, 'sucking' it into the air. Sure, if the baseball is going 200 MPH it can happen. But they don't.
A new study suggests watermelon can be an effective natural weapon against prehypertension, a precursor to cardiovascular disease. It still won't hurt to exercise, of course.
Estimates are that up to 60 percent of U.S. adults are prehypertensive or hypertensive. Prehypertension is characterized by systolic blood pressure readings of 120-139 millimeters of mercury (mm Hg) over diastolic pressure of 80-89 mm Hg. "Systolic" refers to the blood pressure when the heart is contracting. "Diastolic" reflects the blood pressure when the heart is in a period of relaxation and expansion.
What's 7 billion light years away, equivalent in weight to 800,000,000,000,000 of our Suns and holds hundreds of galaxies? It's the most galaxy cluster ever discovered, that's what.
Astronomers using the South Pole Telescope discovered the behemoth and designated it the rather unspectacular SPT-CL J0546-5345.
Redshift measures how light from a distant object has been stretched by the universe's expansion. Located in the southern constellation Pictor (the Painter), the cluster has a redshift of z=1.07. This puts it at a distance of about 7 billion light-years, meaning we see it as it appeared 7 billion years ago, when the universe was half as old as now and our solar system didn't exist yet.
Mental health clinicians need a new way classify personality disorders. A more scientific and practical method of categorizing disorders could improve treatment, says a new analysis.
The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) scheduled to come out in 2013, could be a complete train wreck due to inclusion of virtually every personality type as some spectrum of disorder. What is needed is some sanity because the DSM is considered "The Bible" of the U.S. mental health industry and is used by insurance companies as the basis for treatment approval and payment.
In the wake of blackouts across Italy in 2003 and that same year in the US northeast, two recent studies caused
a Congress that has usually been preoccupied with important things like a law that will limit TV commercial volume to berate the energy industry because a military analyst worried that an attack on a small, unimportant part of the U.S. power grid might, like dominoes, bring the whole grid down.
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