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A Royal Institution Discourse by Wiliam Klemperer looks at the hordes of molecules in the interstellar medium, seen during radioastronomical observations of our galaxy. The mass of molecules rising between...
1 (15 min): Close-up photography of colour reactions and colour of metal ions in solution. Titanium dioxide, tetrachloride, and reduction of titanium IV to III. Manganese ions from II to VII, and oxidation...
It has been known since the early part of this century that substances like liquid helium, which can be cooled to very low temperatures (lower than 5 degrees Kelvin), exhibit bizarre behaviour. They appear...
A collection of experiments carried out on film, each experiment preceded by explanatory graphs and a sound commentary. Shows various superfluid properties: cooling through to lambda-transition to show...
Shows how the behaviour of liquid heium can be explained by the way atoms are counted in various energy levels available to them. Illustrates the way energy can be distributed among atoms by using snookers...
This revised version of SUPERFLUID HELIUM (1972) shows several of the dramatic phenomena of the superfluid - the lamda transition between normal and superfluid helium, the fountain, the superleak, and the...
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