In a longitudinal wave, the vibration is parallel to the direction of energy transfer. In the diagram above, each individual coil of the slinky moves backwards and forwards either side of its rest ...

The Simplification of Calculating Wave LengthsThis article was originally published with the title “Diagram of Electric Wave—Lengths” in SA Supplements Vol. 66 No. 1720supp (December 1908 ...

Figure 2: Summary pressure–temperature phase diagram of TiSe2. a, Broad phase diagram showing charge density wave (CDW) ordered, normal state and superconducting phase boundaries.