Andy Napper
@quantumdot2.bsky.social
Professor of Chemistry, Shawnee State University. Real Ale fan. Chemistry nerd. Power BI, SharePoint, and Power Platform geek.
We had an HP diode array spectrophotometer that was running on a Windows 3.11 for workgroups PC. Honestly it worked great!
We upgraded it bc our undergrads were confused about the OS. They'd never seen anything more ancient than Win 95 before (and that was 15 years ago)
We upgraded it bc our undergrads were confused about the OS. They'd never seen anything more ancient than Win 95 before (and that was 15 years ago)
August 16, 2025 at 2:14 PM
We had an HP diode array spectrophotometer that was running on a Windows 3.11 for workgroups PC. Honestly it worked great!
We upgraded it bc our undergrads were confused about the OS. They'd never seen anything more ancient than Win 95 before (and that was 15 years ago)
We upgraded it bc our undergrads were confused about the OS. They'd never seen anything more ancient than Win 95 before (and that was 15 years ago)
IDK why the last image was so pixelated, but here's a better view of it:
June 14, 2025 at 3:14 PM
IDK why the last image was so pixelated, but here's a better view of it:
Shopping for a reading lamp on Amazon. This one looks good… but what the heck does this description even mean? 🤯
June 13, 2025 at 7:41 PM
Shopping for a reading lamp on Amazon. This one looks good… but what the heck does this description even mean? 🤯
@deandad.bsky.social My RSS feed reader showed a bunch of your IHE articles as "updated". Are you coming back? 🤞
(Hope so—missed your distinctive voice!)
(Hope so—missed your distinctive voice!)
June 7, 2025 at 6:49 PM
@deandad.bsky.social My RSS feed reader showed a bunch of your IHE articles as "updated". Are you coming back? 🤞
(Hope so—missed your distinctive voice!)
(Hope so—missed your distinctive voice!)
By the second edition (1955) of Pauling's "College Chemistry" book, the spelling had changed to Le Chatelier:
May 15, 2025 at 6:30 PM
By the second edition (1955) of Pauling's "College Chemistry" book, the spelling had changed to Le Chatelier:
Screenshot of Chatelier misspelling - letter to Pauling:
May 15, 2025 at 4:00 PM
Screenshot of Chatelier misspelling - letter to Pauling:
Linus Pauling spelled the name as "Châtelier" in his famous General Chemistry textbook.
Oregon State's Pauling site mentions that he received a letter in 1950 about the mistake.
Perhaps this is where it originated?
scarc.library.oregonstate.edu/coll/pauling...
Oregon State's Pauling site mentions that he received a letter in 1950 about the mistake.
Perhaps this is where it originated?
scarc.library.oregonstate.edu/coll/pauling...
May 15, 2025 at 3:50 PM
Linus Pauling spelled the name as "Châtelier" in his famous General Chemistry textbook.
Oregon State's Pauling site mentions that he received a letter in 1950 about the mistake.
Perhaps this is where it originated?
scarc.library.oregonstate.edu/coll/pauling...
Oregon State's Pauling site mentions that he received a letter in 1950 about the mistake.
Perhaps this is where it originated?
scarc.library.oregonstate.edu/coll/pauling...
Looks great! Our cats love theirs, too. You're a good cat dad who definitely earned a couple of beers!! :)
April 14, 2025 at 12:14 PM
Looks great! Our cats love theirs, too. You're a good cat dad who definitely earned a couple of beers!! :)
OMG - such a perfect remake of the Powers of Ten video by CGP Grey. How did I miss this three years ago?!
“Metric Paper…” https://www.youtube.com/watch?v=pUF5esTscZI
“Metric Paper…” https://www.youtube.com/watch?v=pUF5esTscZI
March 6, 2025 at 12:46 AM
OMG - such a perfect remake of the Powers of Ten video by CGP Grey. How did I miss this three years ago?!
“Metric Paper…” https://www.youtube.com/watch?v=pUF5esTscZI
“Metric Paper…” https://www.youtube.com/watch?v=pUF5esTscZI
“The ethical case for resisting AI” https://chuckpearson.wordpress.com/2025/01/13/the-ethical-case-for-resisting-ai/
It’ll be interesting to see how ChatGPT and its ilk disrupts the world of (online) homework in chemistry and other STEM fields. Challenging days lie ahead
It’ll be interesting to see how ChatGPT and its ilk disrupts the world of (online) homework in chemistry and other STEM fields. Challenging days lie ahead
January 18, 2025 at 4:26 PM
“The ethical case for resisting AI” https://chuckpearson.wordpress.com/2025/01/13/the-ethical-case-for-resisting-ai/
It’ll be interesting to see how ChatGPT and its ilk disrupts the world of (online) homework in chemistry and other STEM fields. Challenging days lie ahead
It’ll be interesting to see how ChatGPT and its ilk disrupts the world of (online) homework in chemistry and other STEM fields. Challenging days lie ahead
“The Sinclair ZX81”
As someone who remembers the ZX81 fondly, and spent a lot of time typing in programs on a TI-99/4A - this comment about the Apple Pencil really hit home to me how far we’ve come.
https://www.metafilter.com/206917/The-Sinclair-ZX81
As someone who remembers the ZX81 fondly, and spent a lot of time typing in programs on a TI-99/4A - this comment about the Apple Pencil really hit home to me how far we’ve come.
https://www.metafilter.com/206917/The-Sinclair-ZX81
December 29, 2024 at 3:35 PM
“The Sinclair ZX81”
As someone who remembers the ZX81 fondly, and spent a lot of time typing in programs on a TI-99/4A - this comment about the Apple Pencil really hit home to me how far we’ve come.
https://www.metafilter.com/206917/The-Sinclair-ZX81
As someone who remembers the ZX81 fondly, and spent a lot of time typing in programs on a TI-99/4A - this comment about the Apple Pencil really hit home to me how far we’ve come.
https://www.metafilter.com/206917/The-Sinclair-ZX81
“Standards for Graphic Presentation”
Hard to believe these data-viz recommendations are >100 years old! 📊
https://infowetrust.com/project/1915-standards
Hard to believe these data-viz recommendations are >100 years old! 📊
https://infowetrust.com/project/1915-standards
December 29, 2024 at 12:08 AM
“Standards for Graphic Presentation”
Hard to believe these data-viz recommendations are >100 years old! 📊
https://infowetrust.com/project/1915-standards
Hard to believe these data-viz recommendations are >100 years old! 📊
https://infowetrust.com/project/1915-standards
“Interacting With History - Info We Trust”
Some gorgeous looking charts and history here! Who knew small multiples were this old? (1630)
https://infowetrust.com/project/history-essay
Some gorgeous looking charts and history here! Who knew small multiples were this old? (1630)
https://infowetrust.com/project/history-essay
December 27, 2024 at 4:42 PM
“Interacting With History - Info We Trust”
Some gorgeous looking charts and history here! Who knew small multiples were this old? (1630)
https://infowetrust.com/project/history-essay
Some gorgeous looking charts and history here! Who knew small multiples were this old? (1630)
https://infowetrust.com/project/history-essay
A lovely story (recently RT by @stephaniesb.bsky.social) which reminded me of a quote about brass from @dereklowe.bsky.social book, “The Chemistry Book: From Gunpowder to Graphene, 250 Milestones in the History of Chemistry”
#Chemsky
#Chemsky
December 26, 2024 at 11:03 PM
A lovely story (recently RT by @stephaniesb.bsky.social) which reminded me of a quote about brass from @dereklowe.bsky.social book, “The Chemistry Book: From Gunpowder to Graphene, 250 Milestones in the History of Chemistry”
#Chemsky
#Chemsky
“Alissa Eckert on designing the ‘spiky blob’ Covid-19 medical illustration”
I always wondered about the creation of *that* image. Fascinating back story!
https://www.wallpaper.com/design/design-emergency-alissa-eckert-designs-covid-19-illustration
I always wondered about the creation of *that* image. Fascinating back story!
https://www.wallpaper.com/design/design-emergency-alissa-eckert-designs-covid-19-illustration
December 1, 2024 at 6:46 PM
“Alissa Eckert on designing the ‘spiky blob’ Covid-19 medical illustration”
I always wondered about the creation of *that* image. Fascinating back story!
https://www.wallpaper.com/design/design-emergency-alissa-eckert-designs-covid-19-illustration
I always wondered about the creation of *that* image. Fascinating back story!
https://www.wallpaper.com/design/design-emergency-alissa-eckert-designs-covid-19-illustration
My DAX is almost as rusty as my FORTRAN 66, but I can still write a line or two. 😀 Looking forward to some daily practice thanks to Ruth Pozuelo (Curbal)!
curbal.com/25-days-of-dax-frid…#25DaysOfDAXFridaysy#PowerBIBI
curbal.com/25-days-of-dax-frid…#25DaysOfDAXFridaysy#PowerBIBI
November 19, 2024 at 1:15 AM
My DAX is almost as rusty as my FORTRAN 66, but I can still write a line or two. 😀 Looking forward to some daily practice thanks to Ruth Pozuelo (Curbal)!
curbal.com/25-days-of-dax-frid…#25DaysOfDAXFridaysy#PowerBIBI
curbal.com/25-days-of-dax-frid…#25DaysOfDAXFridaysy#PowerBIBI
"gift open warning" ... whatever that means! :)
github.com/microsoft/fa...
github.com/microsoft/fa...
August 24, 2024 at 1:40 PM
"gift open warning" ... whatever that means! :)
github.com/microsoft/fa...
github.com/microsoft/fa...
I'm using the July 2024 version from the MS App store. Not sure what version @pbiqueryous.bsky.social is using though. Zooming in/out using CTRL + SHIFT + (PLUS / MINUS) affects everything in this window, not just the function definition text, for me.
August 10, 2024 at 11:27 PM
I'm using the July 2024 version from the MS App store. Not sure what version @pbiqueryous.bsky.social is using though. Zooming in/out using CTRL + SHIFT + (PLUS / MINUS) affects everything in this window, not just the function definition text, for me.
“The Excel superstars throw down in Vegas” https://www.theverge.com/c/24133822/microsoft-excel-spreadsheet-competition-chapmionship
June 13, 2024 at 2:07 PM
“The Excel superstars throw down in Vegas” https://www.theverge.com/c/24133822/microsoft-excel-spreadsheet-competition-chapmionship
I have to be honest - I rarely use what-if parameters!
April 24, 2024 at 11:40 PM
I have to be honest - I rarely use what-if parameters!
Sure, I've included the median (which I think should be the same as the 50th percentile, but the INC vs. EXC differences are not at my fingertips). It's a dotted dark grey line.
Sure looks like there's some skew here!
Sure looks like there's some skew here!
April 24, 2024 at 10:32 PM
Sure, I've included the median (which I think should be the same as the 50th percentile, but the INC vs. EXC differences are not at my fingertips). It's a dotted dark grey line.
Sure looks like there's some skew here!
Sure looks like there's some skew here!
I wrote a couple of measures using PERCENTILEX.INC to create the IQR, then carefully arranged them and set the shade area for the 3rd quartile to grey, and the 1st quartile to white. Bit hacky, but it does show the underlying distribution at least!
April 24, 2024 at 9:38 PM
I wrote a couple of measures using PERCENTILEX.INC to create the IQR, then carefully arranged them and set the shade area for the 3rd quartile to grey, and the 1st quartile to white. Bit hacky, but it does show the underlying distribution at least!