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75 videos for category Experimental procedure:


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Image Link to full record for video 1 video 1 : A thin section of barium titanate is viewed between crossed-polars, Initially, the sample is below the transition temperature, and since the domains of the anisotropic tetragonal phase exhibit birefringence, it is brightly coloured when viewed between crossed-polars. When the sample reaches the transition temperature, the isotropic cubic phase forms, which appears black. From TLP: Introduction to Anisotropy
Image Link to full record for video 2 video 2 : A section of quartz cut perpendicular to the c-axis being heated from a point at its centre. A circle shows the thermal conductivity is the same in all directions in this plane. From Introduction to Anisotropy
Image Link to full record for video 3 video 3 : A section of quartz cut parallel to the c-axis being heated from a point at its centre. An ellipse shows that the thermal conductivity in this plane is direction-dependent. From Introduction to Anisotropy
Image Link to full record for video 10 video 10 : Using a steel-aluminium bi-material strip, with the two constituent strips equally thick. The steel-aluminium strip is fixed securely in the tray, and liquid nitrogen carefully poured into the tray to estimate its boiling temperature. From TLP: Thermal expansion and the bi-material strip
Image Link to full record for video 11 video 11 : Measuring Young's modulus by the deflection of a cantilever, from TLP: Thermal expansion and the bi-material strip
Image Link to full record for video 14 video 14 : 3-point bending experiment for a brass beam. The dial measures the deflection as the load is increased.
Image Link to full record for video 15 video 15 : The inflation of a balloon on the manometer simulates formation of an aneurysm and gives a qualitative idea of how the pressure varies as the balloon is blown up. The pressure drop as the aneurysm forms and the constant pressure as the aneurysm lengthens are particularly obvious. The red lines in the video show the initial position of the menisci. From TLP: Elasticity in Biological Materials
Image Link to full record for video 16 video 16 : Close up of the inflation of a balloon on a manometer simulating formation of an aneurysm and gives a qualitative idea of how the pressure varies as the balloon is blown up. The pressure drop as the aneurysm forms and the constant pressure as the aneurysm lengthens are particularly obvious. The red lines in the video show the initial position of the menisci. From TLP: Elasticity in Biological Materials
Image Link to full record for video 23 video 23 : A notched-bar impact test of acrylic, carried out at room temperature
Image Link to full record for video 24 video 24 : A notched-bar impact test of aluminium, carried out at room temperature .

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