Tom Swift and His Polar-Ray Dynasphere (The New Tom Swift Jr. Adventures) by Edward (Illustrator) II; Moritz - First Edition First Printing - 1965 - from Gargoyle Books (SKU: 019819)
极光纪】8.7极光纪Polar Ray Live 现场录像-哔哩哔哩
Simulation of polar magnetic fields, supposedly traced by polar rays,... | Download Scientific Diagram
Polar-Ray.com LED Lighting
Polar ray-tracing example using four radial (r) and eight azimuthal (ϕ)... | Download Scientific Diagram