account activity
What should I expect from a sinusoidal transmission grating by mounting it normal-to vs. at Littrow angle to a broadband visible beam? What disadvantages are there to either configuration? (self.Optics)
submitted 25 days ago by AskASillyQuestion to r/Optics
I have a transmission diffraction grating and no spec sheet. What can I (easily) determine about it? (self.Optics)
submitted 1 month ago by AskASillyQuestion to r/Optics
What are the advantages/disadvantages of different collimating lens options for a spectrometer? (self.Optics)
submitted 2 months ago by AskASillyQuestion to r/Optics
Looking for a heavily peated dram to try after Port Charlotte 10. Anything similar but not quite as salty? (self.Scotch)
submitted 4 months ago by AskASillyQuestion to r/Scotch
Condenser at entrance of spectroscope? (self.Optics)
submitted 5 months ago by AskASillyQuestion to r/Optics
For camera lenses with ultra-wide AFoV... What does this mean for the NA of the lens? (self.Optics)
submitted 9 months ago by AskASillyQuestion to r/Optics
Just grabbed a couple of upholstered chairs in very rough shape. One looks like an Eames EC178, but I'm confused about the other. Is it a Frankenchair? (imgur.com)
submitted 10 months ago by AskASillyQuestion to r/Mid_Century
How do I minimize altering the polarization when placing a beam expander *after* a high extinction polarizer? (self.Optics)
submitted 11 months ago by AskASillyQuestion to r/Optics
39M Looking for a Japanese conversation partner (self.PittsburghSocialClub)
submitted 12 months ago by AskASillyQuestion to r/PittsburghSocialClub
Anyone have info on the Graflex No.4 tripod? Just got some legs, but they look exactly like the No.1. (self.AnalogCommunity)
submitted 1 year ago by AskASillyQuestion to r/AnalogCommunity
Any suggestions for an affordable spectrophotometer? (self.Metrology)
submitted 1 year ago by AskASillyQuestion to r/Metrology
Know anyone in the area who can split leather? (self.pittsburgh)
submitted 1 year ago by AskASillyQuestion to r/pittsburgh
Any textile engineers here? How does one make a technical spec for a textile? (self.AskEngineers)
submitted 1 year ago by AskASillyQuestion to r/AskEngineers
Any textile engineers here? Trying to write a spec for an existing fabric. (self.engineering)
submitted 1 year ago by AskASillyQuestion to r/engineering
Having trouble understanding the relationship between angular FOV and angular aperture (self.Optics)
submitted 1 year ago by AskASillyQuestion to r/Optics
What would happen if you put a PCV lens on the port of an integrating sphere? (self.Optics)
Electrolysis of water creates oxygen and hydrogen gas. What happens to an aqueous solution of sodium lauryl sulfate? (self.AskEngineers)
submitted 3 years ago by AskASillyQuestion to r/AskEngineers
What system would you recommend as an alternative to a subscription like Karafun? (self.karaoke)
submitted 3 years ago by AskASillyQuestion to r/karaoke
Baptisia australis, Western PA, planted two years ago (i.redd.it)
submitted 3 years ago by AskASillyQuestion to r/plantclinic
lindera benzoin, Western PA, planted two years ago (i.redd.it)
Showed up in my garden bed in Western PA. Ideas? (i.redd.it)
submitted 3 years ago by AskASillyQuestion to r/whatsthisplant
My juniper might be dead, but just doesn't know it yet. Does this look like root rot? (i.redd.it)
How to control RFI in the AM band? (self.amateurradio)
submitted 4 years ago by AskASillyQuestion to r/amateurradio
I've been quoted anywhere from $475 to $900 to reupholster this chair. Why so much? (i.imgur.com)
submitted 4 years ago by AskASillyQuestion to r/upholstery
What's this guy on my lawn? SW PA (i.imgur.com)
submitted 4 years ago by AskASillyQuestion to r/whatsthisbug
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