Tim Peake and ISS experiment. British astronaut Tim Peake (born 1972) working on the Advanced Colloids Experiment Heated-2 (ACE H2) on the International Space Station (ISS). Peake,an astronaut for the European Space Agency (ESA),sent this image to his followers on the social media site Twitter,saying he was stirring samples using a bar magnet to turn a tiny metal rod. In this experiment,researchers are studying a type of colloid that has different sizes of particles suspended within a fluid medium (small charged nanoparticles and large non-charged particles). This led to the discovery of a colloidal stabilization process called nanoparticle haloing (NPH),with applications for advanced biomedical materials. Photographed on 4 January 2016 | |
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Credit: | Science Photo Library / NASA |
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