Pixel-Based Non-Linearity Correction for the WFC3 IR Detector. Sachindev S. Shenoy et. al. https://arxiv.org/abs/2512.01951
December 2, 2025 at 6:19 AM
Pixel-Based Non-Linearity Correction for the WFC3 IR Detector. Sachindev S. Shenoy et. al. https://arxiv.org/abs/2512.01951
Working on the railroad. Can you say “Zmall”? I’m just dabbling in the small scale. I think it’s cool but is IS pricey.
A set is $350+ most everything is ala carte & it’s expensive.
Wasn’t difficult to paint the loco or caboose. Decals not hard either. #modeltrains #sooline #Zscale
A set is $350+ most everything is ala carte & it’s expensive.
Wasn’t difficult to paint the loco or caboose. Decals not hard either. #modeltrains #sooline #Zscale
November 17, 2025 at 9:52 PM
Working on the railroad. Can you say “Zmall”? I’m just dabbling in the small scale. I think it’s cool but is IS pricey.
A set is $350+ most everything is ala carte & it’s expensive.
Wasn’t difficult to paint the loco or caboose. Decals not hard either. #modeltrains #sooline #Zscale
A set is $350+ most everything is ala carte & it’s expensive.
Wasn’t difficult to paint the loco or caboose. Decals not hard either. #modeltrains #sooline #Zscale
Only takes a few lines of code to make a beautiful 3D plot in R!
----
library(rayshader)
montereybay |>
sphere_shade() |>
plot_3d(heightmap=montereybay,zscale=50, water=TRUE)
render_highquality()
(I'm cheating of course--the annoying part is loading the data into R!)
----
library(rayshader)
montereybay |>
sphere_shade() |>
plot_3d(heightmap=montereybay,zscale=50, water=TRUE)
render_highquality()
(I'm cheating of course--the annoying part is loading the data into R!)
November 8, 2025 at 1:58 AM
Only takes a few lines of code to make a beautiful 3D plot in R!
----
library(rayshader)
montereybay |>
sphere_shade() |>
plot_3d(heightmap=montereybay,zscale=50, water=TRUE)
render_highquality()
(I'm cheating of course--the annoying part is loading the data into R!)
----
library(rayshader)
montereybay |>
sphere_shade() |>
plot_3d(heightmap=montereybay,zscale=50, water=TRUE)
render_highquality()
(I'm cheating of course--the annoying part is loading the data into R!)
It's very difficult to build AI security as an add-on to an existing architecture that is not designed to detect shadow IT (AI chatbots etc.) workload. Good to see Zscaler recognizing strength in a start-up instead of building on their own. www.zscaler.com/press/zscale...
Zscaler Acquires Innovative AI Security Pioneer SPLX
Zscaler secures the enterprise AI lifecycle with acquisition of innovative AI security pioneer SPLX
www.zscaler.com
November 4, 2025 at 1:45 AM
It's very difficult to build AI security as an add-on to an existing architecture that is not designed to detect shadow IT (AI chatbots etc.) workload. Good to see Zscaler recognizing strength in a start-up instead of building on their own. www.zscaler.com/press/zscale...
My video for this week is a little unusual.
#modeltrain #modelrailroad #zscale
youtu.be/xga_KjX2w1s?si
#modeltrain #modelrailroad #zscale
youtu.be/xga_KjX2w1s?si
Switching video, 10-26-25
YouTube video by Robert Collins
youtu.be
October 26, 2025 at 6:00 PM
My video for this week is a little unusual.
#modeltrain #modelrailroad #zscale
youtu.be/xga_KjX2w1s?si
#modeltrain #modelrailroad #zscale
youtu.be/xga_KjX2w1s?si
Here is the link to my Thangs store. The designs are up, but I'm still working on getting more prints available for sale.
#modeltrain #modelrailroad #3Dprinting #zscale #nscale
thangs.com/designer/Rob...
#modeltrain #modelrailroad #3Dprinting #zscale #nscale
thangs.com/designer/Rob...
RobertCollins’s Portfolio of 3D Models
Hi! I'm an author, but I'm also into model railroading. I'm mainly into Z scale with some interest in N scale. Thangs community collaborator.
thangs.com
October 15, 2025 at 7:43 PM
Here is the link to my Thangs store. The designs are up, but I'm still working on getting more prints available for sale.
#modeltrain #modelrailroad #3Dprinting #zscale #nscale
thangs.com/designer/Rob...
#modeltrain #modelrailroad #3Dprinting #zscale #nscale
thangs.com/designer/Rob...
Zscaler Confirms Data Breach After Salesloft Drift Supply-Chain Compromise | LinkedIn www.linkedin.com/pulse/zscale...
Zscaler Confirms Data Breach After Salesloft Drift Supply-Chain Compromise
Cybersecurity firm Zscaler has disclosed a data breach after attackers accessed its Salesforce environment through compromised credentials from Salesloft Drift, an AI chat agent that integrates with S...
www.linkedin.com
September 2, 2025 at 3:28 PM
Zscaler Confirms Data Breach After Salesloft Drift Supply-Chain Compromise | LinkedIn www.linkedin.com/pulse/zscale...
Delivering & picking up Santa Fe freight cars in this short video.
#modeltrain #modelrailroad #zscale
youtu.be/FgLz_zk3pAA
#modeltrain #modelrailroad #zscale
youtu.be/FgLz_zk3pAA
Switching video, 8-31-25
YouTube video by Robert Collins
youtu.be
September 1, 2025 at 1:41 PM
Delivering & picking up Santa Fe freight cars in this short video.
#modeltrain #modelrailroad #zscale
youtu.be/FgLz_zk3pAA
#modeltrain #modelrailroad #zscale
youtu.be/FgLz_zk3pAA
August 28, 2025 at 11:40 AM
I posted another short switching video yesterday.
#modeltrain #modelrailroad #zscale
youtu.be/kBnAyfrlnuc
#modeltrain #modelrailroad #zscale
youtu.be/kBnAyfrlnuc
Switching video, 8-24-25
YouTube video by Robert Collins
youtu.be
August 25, 2025 at 6:38 PM
I posted another short switching video yesterday.
#modeltrain #modelrailroad #zscale
youtu.be/kBnAyfrlnuc
#modeltrain #modelrailroad #zscale
youtu.be/kBnAyfrlnuc
My #zscale #modelrailroad its getting its first piece of scenery.
August 25, 2025 at 7:32 AM
My #zscale #modelrailroad its getting its first piece of scenery.
Track has been glued down all the cables are set. Next step, backdrop and wireing. #modelrailroad #zscale #1zu220
August 22, 2025 at 2:33 PM
Track has been glued down all the cables are set. Next step, backdrop and wireing. #modelrailroad #zscale #1zu220
also finally figured out how to correctly tonemap PS5 footage with one command:
ffmpeg -i test.webm -vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p -c:v libx264 -crf 17 -preset slower test2.mkv
ffmpeg -i test.webm -vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p -c:v libx264 -crf 17 -preset slower test2.mkv
August 1, 2025 at 3:13 AM
also finally figured out how to correctly tonemap PS5 footage with one command:
ffmpeg -i test.webm -vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p -c:v libx264 -crf 17 -preset slower test2.mkv
ffmpeg -i test.webm -vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p -c:v libx264 -crf 17 -preset slower test2.mkv
Then there's this. I don't know. Not sure I'd spend that much even if I had it. #zscale #modelTrains
August 1, 2025 at 1:36 AM
Then there's this. I don't know. Not sure I'd spend that much even if I had it. #zscale #modelTrains
Good time to figure out what's left for the model train layout:
- finish reinforcing the frame (no more broken joins!)
- finish smoothing the mainline
- finish the south branch line
- finish the railyard north of the channel
- wire switches
- buildings
- foliage
- bridge
- signals
- lights...
- finish reinforcing the frame (no more broken joins!)
- finish smoothing the mainline
- finish the south branch line
- finish the railyard north of the channel
- wire switches
- buildings
- foliage
- bridge
- signals
- lights...
July 21, 2025 at 11:14 PM
Good time to figure out what's left for the model train layout:
- finish reinforcing the frame (no more broken joins!)
- finish smoothing the mainline
- finish the south branch line
- finish the railyard north of the channel
- wire switches
- buildings
- foliage
- bridge
- signals
- lights...
- finish reinforcing the frame (no more broken joins!)
- finish smoothing the mainline
- finish the south branch line
- finish the railyard north of the channel
- wire switches
- buildings
- foliage
- bridge
- signals
- lights...
Magnifying goggles and macro pics... and need a finer panel liner for this. #ZScale #ModelTrains
July 7, 2025 at 1:25 AM
Magnifying goggles and macro pics... and need a finer panel liner for this. #ZScale #ModelTrains