ScottRohrbach

Digital readouts and a well thought out backlash avoidance method. (And a lot of time spent aligning the diamond blade to generate minimum kerf and wobble.)

I had a technically difficult but mindless job in the early 90’s. Slicing carbon fiber composites into fatigue test samples. Typically 1” wide with a tolerance of 5 mils (though I kept 2 mils about 95% of the time). Made thousands of those, but it gave me a LOT of time to think about other things.

Aww, that’s too bad. My workplace has armed guards who will scowl at you QUITE firmly if you try to get in.

I’m waiting to find out what happened when he tried.

NYT: “76 percent of Americans say Trump does not deserve the Nobel Peace Prize”

The scariest part being that 22% think he does. 🤦🏼‍♂️

Trump Administration Live Updates: President Says Broadcasters Should Lose Licenses for Criticizing Him

Another day, another blatantly impeachable move.

Trump Administration Live Updates: President Says Broadcasters Should Lose Licenses for Criticizing Him www.nytimes.com/live/2025/09...

I was actually looking for a Webb image that might have the Northern Light color scheme, but this was one of the first things I saw, so ran with it.

The range that this happens for is very narrow, so it can usually be avoided by not putting bright objects right in the ~3 arcsecond space at the edge. But a moon of Uranus is pretty big and telescopes tend to take many observations slightly shifted with respect to one another to build up an image.

It is something that is essentially inevitable. We need the shield to keep light from hitting the shiny wire bonds that connect the detector to the rest of the electronics. (Without the shield we would have worse problems.) 1/2

will strike the inside of a very shallow shield just over the detector. That light will scatter into the field with a plume that was termed “dragon’s breath”. The scattering also seems to enhance the diffraction spikes in directions perpendicular to the edge.

Here’s a cute anecdote: the funky shape and diffraction spikes around Miranda in this image is something I studied on and off for a year or so. Light from a bright object just outside of the field of view in NIRCam (1/2) stsci-opo.org/STScI-01K228...

will scatter off the light shield just over the detector and produce a so-called “dragon’s breath” pattern that has a plume of scattered light as well as enhancing the diffraction spikes in directions perpendicular to the edge of the field. (This can also be seen occasionally in Hubble images.) 2/2

My goal was that it will help me slow down and document my work more carefully, but that right there makes it worth the price. 💙

I had been holding out for another Chais Magic run, but this one is for work notes, so Northern Lights seemed more appropriate.

You make it sound like that’s a bad thing. 😉

(Of course, the first version of this post read “bed” thing… 🙄)

My new, one of a kind @abigailmarkov.com Bebe fountain pen in Northern Lights. “It shall be an heirloom of my Kingdom.”

They will love it.

Yoiks!!

The mating part still only has a single thread that is the same pitch as the triple threads? Otherwise you would have match the starting points of both sets of triple threads VERY precisely.

I am curious what the benefit of the triple thread vs single thread is? I get that whatever you are screwing together goes on faster and that it is easier to find a thread. Anything else?

That’s what I thought. Thanks!

And run the pitch 3x faster than for a single thread?

Oh, shit!

Proud that I understand… 2/3 of that.

I hoped you learned something useful in the process.

😢😢😢

If you’re trying to listen to the news, it’s not worth it. Stick one of those cherries in the good ear.

This is who runs this account.