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Shape-shifting metal
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Ever seen 'memory metal' in action? Watch this paperclip - made from an incredible shape-shifting metal called Nitinol - be bent completely out of shape and then restored instantly as it touches a simple bowl of warm water.
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5972 |
duddy |
9 years ago |
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NASA Rover finds conditions once suited for ancient life on Mars
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Scientists identified sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon -- some of the key chemical ingredients for life -- in the powder Curiosity drilled out of a sedimentary rock near an ancient stream bed in Gale Crater on the Red Planet last month.
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2016 |
duddy |
9 years ago |
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2820 |
duddy |
9 years ago |
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Drinking seawater to survive
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A seagull on a glass roof looking really cute. Seagulls are able to drink seawater to survive thanks to salt glands just above their eyes. These glands eliminate excess salt from the seawater and flush it out of the birds' nostrils in liquid form, an action that's often mistaken for a sneeze.
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1926 |
duddy |
9 years ago |
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Beer companies are trying to get scientists drunk
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| After winning the Nobel Prize in Physics in 1922, Carlsberg gave Niels Bohr a perpetual supply of beer. The brewing company had a pipeline running from the brewery to Bohr’s house, so that he could have fresh beer on tap all the time. |
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2243 |
duddy |
10 years ago |
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Beautiful Reed Flute Cave
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This is Reed Flute Cave, in the Guangxi region of China. This natural limestone formation is over 180 million years old and contains inscriptions written in ink, which have been dated to as far back as 792 AD in the Tang Dynasty. The cave was named after the type of reed growing outside, which can be made into musical flutes.
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1932 |
duddy |
10 years ago |
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2915 |
duddy |
10 years ago |
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3211 |
duddy |
10 years ago |
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8608 |
duddy |
10 years ago |
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The cotton castle
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Pamukkale, meaning "cotton castle" in Turkish, is a natural water terrace site located in the Denizli Province of southwestern Turkey. The site contains several hot springs contained by stark, white limestone deposits known as travertines, that are fed by the overflowing, mineral-rich spring waters. People have been bathing here for thousands of years. ...
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6169 |
duddy |
10 years ago |
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Proof that money does grow on trees
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Well, okay GOLD. Apparently, gold grows on eucalyptus trees. Researchers discovered that the trees are acting as a hydraulic pump, extracting gold from the soil and moving it to their leaves and branches. The ‘nuggets’ are about one-fifth the diameter of human hair, but the leaves may be used in combination with other tools to develop better exploration techniques.
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7619 |
duddy |
10 years ago |
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2615 |
duddy |
10 years ago |
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So, chemistry is all theory, right?
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Using high-resolution atomic force microscopy, a hydrogen bond has been imaged for the first time. This technique is quite similar to the one used to photograph bonds breaking and reforming that was announced earlier this year.
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4724 |
savio |
10 years ago |
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Cool shiny metal
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This is bismuth, a brittle metal with a white or silver-pink hue and an iridescent oxide tarnish that produces a rainbow of colours from yellow to blue. It is the most naturally diamagnetic metal in the world, which means it can create a magnetic field in opposition to an externally applied magnetic field. ...
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3615 |
duddy |
10 years ago |
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3355 |
duddy |
10 years ago |
