Laman yang mengandungi pautan ke "Fail:Fresnel lens, 5th order, used in Jones Point lighthouse, 1800s - The Lyceum - Alexandria, Virginia - DSC03500.JPG"
Laman-laman berikut mengandungi pautan ke Fail:Fresnel lens, 5th order, used in Jones Point lighthouse, 1800s - The Lyceum - Alexandria, Virginia - DSC03500.JPG:
Memaparkan 1 butir.
- Kanta Fresnel (pautan fail) (← pautan | sunting)