ChemEd X Subscribers enjoy access to a large collection of videos and the associated still images.
The ChemEd X video collection includes modernized versions of the Chemistry Comes Alive! video collection. In addition to this award-winning collection, contributors continue to create some very interesting video.
Note: We are currently updating the ChemEd X video collection. While we do, playing ChemEd X video on Internet Explorer has issues. We recommend that you use Google Chrome or Firefox until these issues are resolved. We apologize for the inconvenience and thank you for your patience.
A pellet of 1-2-3 yttrium barium copper oxide (YBa2Cu3O7-x) is cooled with liquid nitrogen. A magnet placed above the pellet is levitated. At a higher temperature the magnet rests on the pellet, but cooling once again causes the magnet to rise. The levitated magnet is spun with plastic tweezers.
A pellet of 1-2-3 yttrium barium copper oxide (YBa2Cu3O7-x) is cooled with liquid nitrogen. A magnet placed above the pellet is levitated. At a higher temperature the magnet rests on the pellet, but cooling once again causes the magnet to rise. The levitated magnet is spun with plastic tweezers.
A pellet of 1-2-3 yttrium barium copper oxide (YBa2Cu3O7-x) is cooled with liquid nitrogen. A magnet placed above the pellet is levitated. At a higher temperature the magnet rests on the pellet, but cooling once again causes the magnet to rise. The levitated magnet is spun with plastic tweezers.
A novelty store "Drinking Bird" repeatedly dips is beak into a beaker of water and then bobs back to an upright position. Visible movement of a liquid in the bird's body accompanies the bobbing; the movement is caused by changing vapor pressure of the liquid due to different temperatures at the bird's head and the bird's body.
A novelty store "Drinking Bird" repeatedly dips is beak into a beaker of water and then bobs back to an upright position. Visible movement of a liquid in the bird's body accompanies the bobbing; the movement is caused by changing vapor pressure of the liquid due to different temperatures at the bird's head and the bird's body.
A novelty store "Drinking Bird" repeatedly dips is beak into a beaker of water and then bobs back to an upright position. Visible movement of a liquid in the bird's body accompanies the bobbing; the movement is caused by changing vapor pressure of the liquid due to different temperatures at the bird's head and the bird's body.
A small amount of water is placed in one of two Erlenmeyer flasks on a hot plate. After the water has boiled balloons are fitted to the tops of the flasks and the flasks are allowed to cool.
In this qualitative test for viscosity four pipets are filled with different liquids. When the liquids are released, they are observed to flow at different rates.