The Einstein–de Haas effect, which links the spin of electrons to macroscopic rotation, has now been demonstrated in a quantum fluid by researchers at Science Tokyo. The team observed this effect in a Bose–Einstein condensate of europium atoms,

The most precise clocks ever built are now testing Einstein, hunting dark matter, and reshaping how we define time itself. In A Nutshell The world’s most precise clocks are changing how we understand time itself: Unprecedented precision: The best optical atomic clocks wouldn’t drift by more than a second over the entire 13.

The Einstein-de Haas effect has been observed in a quantum fluid, showing that changes in magnetization transfer angular momentum from atomic spins to collective motion.

It has been revealed that simply twisting and stacking two layers of oxide crystals can allow the atomic arrangement itself to control the behavior of electrons. Much like the new patterns that emerge when two meshes are overlapped and rotated,