Field guide No. 992
Frozen wave of platform tiles
A platform rises and falls
A long yellow band of platform tiles buckles into waves through an underground station. The train is expected to surf through.
Field noteYellow platform tiles buckle into waves through a station. The train will have to surf.
Also possible, also breaking physics
Sparrows with drifting motion trailsMotion blur follows fast birds. These trails are longer than the flock deserves.
Inverted waterfall loopWater rises from one pit, arcs overhead and falls into another; a closed loop, a fine plumbing diagram.
Upside down starlings in a dry poolBirds can roll for a moment, but a whole flock flying inverted indoors needs a new idea of up.
Knotted tornado over the prairieAir can’t hold a knot. This funnel has tied an overhand in itself and kept spinning.