This story was updated on Oct. 15, 2019, to correct the statement that the hydrides overlap well with filled palladium d orbitals. The magnesium ligands are what interact with palladium's d orbitals.
In the iconic "Sound of Music" score, "My Favorite Things," a young Julie Andrews lists snowflakes as objects that bring her joy. While some people would rather avoid snowflakes and the slippery roads ...