Tim Feinstein
@timnfeinstein.bsky.social
Ph.D. ex-academic, self-published author of “A Heuristic Guide To Quantitative Imaging”. Lead, operations and technical sales at Coastal Microscopes.
Our 12yo determined that her current favorite animal, the jerboa, go on our pumpkin this year. But talk about a cool Golgi pumpkin! Following convention, it looks like cis- is down.
November 8, 2025 at 9:27 PM
Our 12yo determined that her current favorite animal, the jerboa, go on our pumpkin this year. But talk about a cool Golgi pumpkin! Following convention, it looks like cis- is down.
I saw this weird atmospheric phenomenon in Pittsburgh the other day. Rainbows usually happen opposite the sun, making a ring about 40 degrees around where your shadow. But here the sun’s just out of frame to the left, and you see this persistent rainbow bit just next to it. Any ideas?
October 21, 2025 at 1:35 PM
I saw this weird atmospheric phenomenon in Pittsburgh the other day. Rainbows usually happen opposite the sun, making a ring about 40 degrees around where your shadow. But here the sun’s just out of frame to the left, and you see this persistent rainbow bit just next to it. Any ideas?
For how much birria stew my family has eaten in the last few days, I still have a shocking amount of birria stew.
12yo takes it in tacos. I try to argue that cuts down on the total birria she can remove in a sitting, but resistance is strong.
12yo takes it in tacos. I try to argue that cuts down on the total birria she can remove in a sitting, but resistance is strong.
October 7, 2025 at 5:02 PM
For how much birria stew my family has eaten in the last few days, I still have a shocking amount of birria stew.
12yo takes it in tacos. I try to argue that cuts down on the total birria she can remove in a sitting, but resistance is strong.
12yo takes it in tacos. I try to argue that cuts down on the total birria she can remove in a sitting, but resistance is strong.
For example, let’s say the door on a pass-through breaks. No prob, call up the DLAR office and coordinate with a facilities manager (you have one, right?) to replace it.
If you don’t have either of those, I suppose you could [spoiler], and then, for the love of christ, [spoiler].
If you don’t have either of those, I suppose you could [spoiler], and then, for the love of christ, [spoiler].
September 10, 2025 at 12:05 PM
For example, let’s say the door on a pass-through breaks. No prob, call up the DLAR office and coordinate with a facilities manager (you have one, right?) to replace it.
If you don’t have either of those, I suppose you could [spoiler], and then, for the love of christ, [spoiler].
If you don’t have either of those, I suppose you could [spoiler], and then, for the love of christ, [spoiler].
Post a PERFECT album from the 90s that isn't Nirvana or Pearl Jam.
September 6, 2025 at 1:56 AM
Post a PERFECT album from the 90s that isn't Nirvana or Pearl Jam.
My tween daughter’s review: good movie, everyone wants their own demon cat. The thing is ridiculously cute.
August 3, 2025 at 9:02 PM
My tween daughter’s review: good movie, everyone wants their own demon cat. The thing is ridiculously cute.
Herps! Can someone identify a friend I made near the top of mount Rhune in SW France? I’m leaning towards an asp (Vipera aspis) based on coloring (plus altitude) but it doesn’t feel right. Fortunately it was a cool day for mid-summer, so no one felt too frisky.
July 27, 2025 at 10:11 AM
Herps! Can someone identify a friend I made near the top of mount Rhune in SW France? I’m leaning towards an asp (Vipera aspis) based on coloring (plus altitude) but it doesn’t feel right. Fortunately it was a cool day for mid-summer, so no one felt too frisky.
No cheating, post your lock screen!
#ArbreMana
#ArbreMana
July 27, 2025 at 9:03 AM
No cheating, post your lock screen!
#ArbreMana
#ArbreMana
Translator app: the pictured dog is either reflecting on the unique uses of metaphor by Proust, or else begging you to fetch the toy out of the laundry bin so he can circle back when no one’s watching and drop it in again. If only they weren’t so inscrutable.
July 13, 2025 at 1:36 AM
Translator app: the pictured dog is either reflecting on the unique uses of metaphor by Proust, or else begging you to fetch the toy out of the laundry bin so he can circle back when no one’s watching and drop it in again. If only they weren’t so inscrutable.
Honestly, I’m pretty sure I can tell what he is trying to say most of the time.
July 12, 2025 at 6:03 PM
Honestly, I’m pretty sure I can tell what he is trying to say most of the time.
If you see this, quote post with. Robot that isn't from Star Wars, Star Trek, Dr Who or Transformers.
July 10, 2025 at 2:23 AM
If you see this, quote post with. Robot that isn't from Star Wars, Star Trek, Dr Who or Transformers.
Also Epicurus and Metrodorus, who started the atomist school of philosophy over dinner & drinks. No double meaning this time, I’m just a fan of their work.
May 30, 2025 at 2:17 PM
Also Epicurus and Metrodorus, who started the atomist school of philosophy over dinner & drinks. No double meaning this time, I’m just a fan of their work.
May 30, 2025 at 12:54 PM
A story told in two pictures.
January 8, 2025 at 3:02 PM
A story told in two pictures.
Since he can’t bury his bones in the house, Bowie finds the most inconvenient places to drop or stuff his favorite things: behind radiators, between couch cushions, under the bed.
They almost always end up somewhere he can’t get them back. That of course means loudly summoning his staff for help.
They almost always end up somewhere he can’t get them back. That of course means loudly summoning his staff for help.
January 8, 2025 at 2:58 PM
Since he can’t bury his bones in the house, Bowie finds the most inconvenient places to drop or stuff his favorite things: behind radiators, between couch cushions, under the bed.
They almost always end up somewhere he can’t get them back. That of course means loudly summoning his staff for help.
They almost always end up somewhere he can’t get them back. That of course means loudly summoning his staff for help.
Riley looks a lot like our Bowie! I love the ears. I know Dobermans can be a handful, here Bo took a shoe to force some play, as if he doesn’t get enough already!
January 7, 2025 at 2:43 PM
Riley looks a lot like our Bowie! I love the ears. I know Dobermans can be a handful, here Bo took a shoe to force some play, as if he doesn’t get enough already!
Today’s edition of DROP IT, BOWIE: again with the pants.
January 3, 2025 at 12:05 PM
Today’s edition of DROP IT, BOWIE: again with the pants.
Here is a terrible bird pic, but it’s an important one for me. I’ve been in Colombia for a week and dying to see Caracaras, which you don’t see in the northern US. On my last day in Cartagena, this yellow-headed Caracara followed us around town!
Such cool birds!
Such cool birds!
December 31, 2024 at 6:34 PM
Here is a terrible bird pic, but it’s an important one for me. I’ve been in Colombia for a week and dying to see Caracaras, which you don’t see in the northern US. On my last day in Cartagena, this yellow-headed Caracara followed us around town!
Such cool birds!
Such cool birds!
Poorly explain what you do for a job.
December 31, 2024 at 6:03 PM
Poorly explain what you do for a job.
