Bob Mahar - Curator, The Maharchives
@bobmahar.bsky.social
Father, husband, Dir. IT Infrastructure at Muhlenberg College, coder, micro & macro photo, old computers / books / science, making & fixing stuff, entropy remediator. Curator of The #Maharchives. More recently, amateur radiation metrologist. 🙄
From the #Maharchives: IDK, man, I just work here...
May 10, 2025 at 1:41 AM
From the #Maharchives: IDK, man, I just work here...
Bessel Functions Gonna Function, Yo! That's the way we roll at the subterranean dungeon that is my basement #Maharchives.
May 4, 2025 at 5:09 PM
Bessel Functions Gonna Function, Yo! That's the way we roll at the subterranean dungeon that is my basement #Maharchives.
It's going to be a ripple tank, God willing.
May 4, 2025 at 3:29 PM
It's going to be a ripple tank, God willing.
From the #Maharchives Enlightened Self Promotion Department: "Finally!" You can own a thoriated lens for just $25 that has the same activity as much more expensive / rare classic camera lenses. www.ebay.com/itm/29725364...
April 27, 2025 at 2:31 AM
From the #Maharchives Enlightened Self Promotion Department: "Finally!" You can own a thoriated lens for just $25 that has the same activity as much more expensive / rare classic camera lenses. www.ebay.com/itm/29725364...
From the #Maharchives: This small microfiche lens has a thoriated front element making it a bit radioactive. I used it for closeup photography for years, it's actually quite well corrected. Cost? $0 Saved from the dumpster.
April 1, 2025 at 12:27 AM
From the #Maharchives: This small microfiche lens has a thoriated front element making it a bit radioactive. I used it for closeup photography for years, it's actually quite well corrected. Cost? $0 Saved from the dumpster.
From the #Maharchives: One of my favorite #PENTAX lenses is the S-M-C Takumar 85/1.8. It's just a magical portrait lense. It's also has a thoriated front element, made with radioactive thorium to improve its optical properties. From the mount end, there is little activity.
April 1, 2025 at 12:11 AM
From the #Maharchives: One of my favorite #PENTAX lenses is the S-M-C Takumar 85/1.8. It's just a magical portrait lense. It's also has a thoriated front element, made with radioactive thorium to improve its optical properties. From the mount end, there is little activity.
From the #Maharchives: Yes, static discharge can make a geiger counter go nuts. And don't judge the way I make my coffee.
March 25, 2025 at 8:48 PM
From the #Maharchives: Yes, static discharge can make a geiger counter go nuts. And don't judge the way I make my coffee.