Modern researchers and scientists are actively pushing the boundaries of what’s possible, from theoretically validating time travel and harnessing electricity from human sweat to achieving the remarkable feat of transforming water into gold.
Historically, water and gold were understood as distinct states of matter with fundamentally different atomic structures—water having loosely packed atoms and gold tightly packed ones. The idea of one transforming into the other was considered impossible due to their inherent atomic contradictions.
Breakthrough: Water Transformed into a Gold-Like Metal
Scientists at the Czech Academy of Sciences in Prague have accomplished a feat reminiscent of ancient alchemy: they successfully converted a water droplet into a gleaming, golden metallic substance. This extraordinary transformation, though brief, marks a significant scientific advancement.
Although the metallic state of the water persisted for only a few seconds, this experiment is remarkable because it bypassed the extremely high pressures typically required to convert non-metallic substances into electrically conductive metals.
Pavel Jungwirth, a physical chemist and co-author from the Czech Academy of Sciences in Prague, described witnessing water acquire a golden luster as a career highlight. The team’s groundbreaking findings were officially published in the journal Nature on July 28.
Unveiling the Method: How Water Became Metallic
Theoretically, subjecting liquids to immense pressures can transform them into a metallic state. Under such conditions, atoms or molecules are compacted so tightly that their outer electrons begin to be shared, allowing the substance to conduct electricity much like copper or iron. Geophysicists postulate that the cores of giant planets like Neptune and Uranus contain water in this metallic form, and that high-pressure metallic hydrogen could even become a superconductor, exhibiting zero electrical resistance.
Jungwirth noted that converting water into a metal via conventional high-pressure methods would demand approximately 15 million atmospheres, a pressure currently unattainable with laboratory techniques. However, his innovative hypothesis—that water could become conductive by acquiring electrons from alkali metals—proved instrumental in achieving this breakthrough.
To achieve this, researchers filled a syringe with a room-temperature liquid mixture of sodium and potassium, then introduced it into a vacuum chamber. They formed droplets of this metal mixture and exposed them to minimal water vapor. The water condensed onto each droplet, creating a layer merely one-tenth of a micrometre thick. Crucially, electrons from the metal droplet, along with positive metallic ions, rapidly diffused into this water layer, causing it to turn golden within moments.
A Chemist’s Delight: The Joy of Unconventional Science
Pavel Jungwirth described the experiment as a refreshing diversion from his daily routine of conducting computer simulations in organic chemistry, serving as a powerful reminder that scientific exploration can indeed be enjoyable. He remarked, “It’s not something you can get grant money for, but something you can do on your weekends.”
That will hit hard positively, when you really want to work on your passion!
References:
https://www.nature.com/articles/d41586-021-02065-w
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