Archives for posts with tag: water

A change in the gene for aquaporin 5 causes diffuse non-epidermolytic palmoplantar keratoderma, where the skin on some people’s hands go white and spongy after being exposed to water because it becomes more porous.  It’s similar to what happens when you stay in the bath much too long, but sets in a lot more quickly.

See The American Journal of Human Genetics for the original paper.

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Forget walking on water – pygmy mole crickets can jump off the surface of water using spring-loaded, oar-like paddles on their back legs.

All tap drips are the same shape… this has been known in theory since 1996, but researchers have finally been able to see it (and so can you, on this video).

Read the original paper in Physical Review E.

 

The Mars rover, Curiosity, has sent back images of rounded rocks and gravel that suggest they were shaped by flowing water, probably thousands to millions of years ago.

 

 

 

The London Olympic pool has been designed with science in mind – for example, the sides and ends have a special trough that dissipates waves, and the bottom of the pool is movable, again to reduce the impact of waves. The lane markers are also designed to cut turbulence. Pool water will be used to flush the venue’s toilets.

Olympic Games 27 July – 12 August

Want an excuse to avoid the washing up? There are very rare cases of aquagenic urticaria, a rash caused by contact with water, even the person’s own sweat.

See the paper in the Annals of Allergy, Asthma and Immunology. From Discover’s 20 Things You Didn’t Know About… Allergies

The Water Recovery System on the International Space Station turns around 93% of astronauts’ sweat and urine into drinking water.

From 20 Things You Didn’t Know About… Water from Discover Magazine

According to NASA, there may be water (in the form of ice) at Mercury’s poles. There are patches in craters that reflect radar, which suggests that they might be filled with ice.

…that they cross over more than one level of the atmosphere. High clouds mostly made of ice particles and low clouds are mostly drops of water. Try making a cloud.

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