THE classical conception of the mechanism of the propagation of sound in gases presents two alternative expressions for the velocity, according as one assume with Newton that the elastic processes are ...

Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London, Vol. 2 (1815 - 1830), pp. 332-333 (2 pages) ...

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The picosecond ultrasonics technique to probe atomic bonds and vdW forces in In 2 Se 3. In the experiment, blue-coloured pump laser pulses are shone on a flake of 2D material, and red-coloured probe ...