Question
In a short 1968 paper, Neil Ashcroft argued that this substance exhibits high-temperature superconductivity. For 10 points each:
[10m] Name this substance that was purportedly synthesized by Ranga Dias and Isaac Silvera by applying nearly 500 gigapascals of pressure in diamond anvil cells. The dynamos of gas giants begin within this substance.
ANSWER: metallic hydrogen [prompt on hydrogen or H] (The scientific community seems to not believe Dias and Silvera’s results, but the paper has not been retracted.)
[10e] Metallic hydrogen surrounds the core of this largest planet in the Solar System.
ANSWER: Jupiter
[10h] Emission features of H3+ (“H-three-plus) were detected where this structure intersects Jupiter’s ionosphere. “S-bursts” in decametric radio emissions are linked to this structure that consists of the Jovian magnetic field lines that intersect the equatorial plane at the point where the Solar System’s most geologically active object orbits.
ANSWER: Io flux tubes [prompt on flux tubes by asking “what moon forms the flux tube with Jupiter?”; reject “tube(s)”]
<Other Science>
Summary
| 2023 ACF Nationals | 04/22/2023 | Y | 1 | 10.00 | 100% | 0% | 0% |
Data
| Chicago A | Georgia Tech A | 0 | 10 | 0 | 10 |