Info White Light Rainbow Holograms (Train and Desert) Type of activity: demo Activity code: L-009d Courses PHY201 Description: Use a clear light bulb with a single vertical filament (up to 60 W.) Train:1. Place on top of swivel base.2. Turn on the lamp.3. Rotate hologram and observe train coming out of the tunnel.Desert: (cactus hologram)1. Place black cloth on wire for backdrop.2. Turn on the lamp.3. Observe desert scene. Apparatus 180 Degree White Light Hologram (The Train) White Light Hologram (The Desert) Incandescent Lamp (Filament) Black Cloth