Extended Data Figure 2: Large water droplets and their EELS.
a, Low-magnification TEM image of a reference sample in which water was trapped in large bubbles (diameter of ∼100 nm). b, Spectrum near the oxygen K-edge from the droplets shown in a. The four marked peaks at 532 eV, 537 eV, 545 eV and 550 eV are in agreement with the previously studied spectra for mixtures of water vapour and liquid water39,40.
