Tag Archives: Water

How the gut overrides the throat in telling the brain whether it's thirsty

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Researchers have found two pathways that tell the brain when the body has had enough water

Feeling thirsty is a natural bodily function to get you to drink some water – but why does the feeling go away so quickly after downing a glass? Shouldn’t it take a bit of time for the water to be absorbed? Strangely enough, the mechanisms behind thirst and satiation are somewhat of a mystery to science. So now researchers from Caltech have investigated and found two connections between body and brain that control the process.

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Category: Biology

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Antibiotics found in world's rivers at levels up to 300 times above safe levels

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A new study has found that in over 100 of 700 river samples taken, antibiotic concentrations ...

In a massive global study, led by researchers at the University of York, hundreds of rivers around the world have been tested for levels of common antibiotics. The study found 65 percent of all samples contained some concentration of antibiotics, with the worst cases showing levels more than 300 times higher than the generally accepted safe threshold.

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Category: Environment

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Earth-buzzing comet found carrying "ocean-like" water

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Earth is a famously wet planet, but where all that water came from in the first place remains a mystery. The most commonly-accepted theory is that comets and asteroids delivered it via impacts during the early days of Earth, and now a NASA st… Continue reading Earth-buzzing comet found carrying "ocean-like" water→

NASA Scientists Created a Super-Hot Exoplanet Atmosphere on Earth

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A team heated a cloud of gas up to 2,000°F and blasted it with radiation to see what happens on giant planets that orbit very close to their stars. Continue reading NASA Scientists Created a Super-Hot Exoplanet Atmosphere on Earth→

Graphene Desalinates Sea Water

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Even though the majority of the Earth is covered in water, a surprising number of people around the world don’t have easy access to clean drinking water. The oceans of course are full of salt, and it is difficult to filter that salt out. Researchers at the University of Manchester …read more

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NASA’s Mars Opportunity Rover Is Likely Dead

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Mission leads have not heard from Oppy since it was caught in a massive dust storm last June. On Wednesday, NASA will likely announce that it has died. Continue reading NASA’s Mars Opportunity Rover Is Likely Dead→

Create an Aurora Of Your Own

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Throughout our day-to-day experiences, we come across or make use of many scientific principles which we might not be aware of, even if we immediately recognize them when they’re described. One such curiosity is that of caustics, which refers not only to corrosive substances, but can also refer to a behavior of light that can be observed when it passes through transparent objects. Holding up a glass to a light source will produce the effect, for example, and while this is certainly interesting, there are also ways of manipulating these patterns using lasers, which makes an aurora-like effect.

The first …read more

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