Janelle Shane
@janelleshane.com
I write about the strange side of AI at aiweirdness.com
Also a laser scientist.
She/her. Colorado, USA
Also a laser scientist.
She/her. Colorado, USA
The satin spar has this cool effect where it turns a laser pointer into concentric rings.
From this paper on ulexite (similar long parallel fiber structure) I learned it’s because the laser passes through lots of tiny birefringent and randomly oriented fibers.
www.tandfonline.com/doi/abs/10.5...
From this paper on ulexite (similar long parallel fiber structure) I learned it’s because the laser passes through lots of tiny birefringent and randomly oriented fibers.
www.tandfonline.com/doi/abs/10.5...
July 8, 2025 at 6:39 PM
The satin spar has this cool effect where it turns a laser pointer into concentric rings.
From this paper on ulexite (similar long parallel fiber structure) I learned it’s because the laser passes through lots of tiny birefringent and randomly oriented fibers.
www.tandfonline.com/doi/abs/10.5...
From this paper on ulexite (similar long parallel fiber structure) I learned it’s because the laser passes through lots of tiny birefringent and randomly oriented fibers.
www.tandfonline.com/doi/abs/10.5...
I obtained some ulexite, a mineral whose long thin fibers make natural optical fibers that transmit images from the back face to the front. Very cool - I’ve always wanted some!
July 8, 2025 at 1:05 AM
I obtained some ulexite, a mineral whose long thin fibers make natural optical fibers that transmit images from the back face to the front. Very cool - I’ve always wanted some!