Stefan de Lange
@langestefan.bsky.social
Heat pumps, solar energy and everything energy transition. I am particularly interested in mathematical topics and modelling within the energy transition.
deserved!
Jean-Baptiste Kempf receives the European SFS Award 2025 at #sfscon for his outstanding and lasting contributions to the Free Software movement and his long-term dedication to the VLC project.🏆
https://fsfe.org/news/2025/news-20251107-01.en.html
#softwarefreedom #freesoftware
https://fsfe.org/news/2025/news-20251107-01.en.html
#softwarefreedom #freesoftware
Jean-Baptiste Kempf receives the European SFS Award 2025 at SFSCON - FSFE
The FSFE and LUGBZ have recognized VLC president and core developer with this European award for his long-term dedication to the project. What began as a s...
fsfe.org
November 9, 2025 at 11:42 AM
deserved!
Reposted by Stefan de Lange
Would you or your colleague like to improve the performance of your data analysis? Then please join us at our @julialang.org workshop at the 247th @aas.org meeting on Jan 3, 2026 in Phoenix, AZ. The regular registration deadline is Nov 7.
aas.org/meetings/aas...
#aas247 #JuliaLang #astrocode
aas.org/meetings/aas...
#aas247 #JuliaLang #astrocode
AAS 247: Registration | American Astronomical Society
aas.org
October 29, 2025 at 3:55 PM
Would you or your colleague like to improve the performance of your data analysis? Then please join us at our @julialang.org workshop at the 247th @aas.org meeting on Jan 3, 2026 in Phoenix, AZ. The regular registration deadline is Nov 7.
aas.org/meetings/aas...
#aas247 #JuliaLang #astrocode
aas.org/meetings/aas...
#aas247 #JuliaLang #astrocode
Go sponsor Simon! github.com/sponsors/Sim...
Sponsor @SimonDanisch on GitHub Sponsors
I'm a Julia open source developer since ~2012 and have helped build substantial parts of the graphics, gpu and plotting infrastructure in Julia.
I'm currently freelancing and trying to make open s...
github.com
October 14, 2025 at 5:57 PM
Go sponsor Simon! github.com/sponsors/Sim...
Reposted by Stefan de Lange
Full schedule available for JuliaCon Local Paris 2025: pretalx.com/juliacon-loc...
#JuliaLang folks, which talks are you most excited about? Anyone from the #PyData community planning to swing by?
@juliacon.bsky.social @julialang.org @pydata.bsky.social
#JuliaLang folks, which talks are you most excited about? Anyone from the #PyData community planning to swing by?
@juliacon.bsky.social @julialang.org @pydata.bsky.social
https://pretalx.com/juliacon-local-paris-2025/schedule/
[1mJuliaCon Local Paris 2025[0m
Get different formats:
curl https://pretalx.com/juliacon-local-paris-2025/schedule/\?format=table (default)
curl https://pretalx.com/juliacon-local-paris-2025...
pretalx.com
August 26, 2025 at 4:17 PM
Full schedule available for JuliaCon Local Paris 2025: pretalx.com/juliacon-loc...
#JuliaLang folks, which talks are you most excited about? Anyone from the #PyData community planning to swing by?
@juliacon.bsky.social @julialang.org @pydata.bsky.social
#JuliaLang folks, which talks are you most excited about? Anyone from the #PyData community planning to swing by?
@juliacon.bsky.social @julialang.org @pydata.bsky.social
Reposted by Stefan de Lange
Want more open-source software and scientific computing in your life? Get your ticket for JuliaCon Local Paris 2025 before the end of the early bird pricing!
We have an impressive lineup of keynotes, starting with Professor Laura Grigori (EPFL) and not stopping there!
juliacon.org/local/paris2...
We have an impressive lineup of keynotes, starting with Professor Laura Grigori (EPFL) and not stopping there!
juliacon.org/local/paris2...
August 6, 2025 at 5:33 PM
Want more open-source software and scientific computing in your life? Get your ticket for JuliaCon Local Paris 2025 before the end of the early bird pricing!
We have an impressive lineup of keynotes, starting with Professor Laura Grigori (EPFL) and not stopping there!
juliacon.org/local/paris2...
We have an impressive lineup of keynotes, starting with Professor Laura Grigori (EPFL) and not stopping there!
juliacon.org/local/paris2...
Reposted by Stefan de Lange
New Home Assistant Podcast!
🔐 I sat down with Jürgen Pansy, co-founder of Nuki, to explore their smart lock tech and how they’re integrating with @home-assistant.io via the Works with HA program. Great insights!
Catch the episode: https://youtu.be/nPZoSeY3H40
🔐 I sat down with Jürgen Pansy, co-founder of Nuki, to explore their smart lock tech and how they’re integrating with @home-assistant.io via the Works with HA program. Great insights!
Catch the episode: https://youtu.be/nPZoSeY3H40
July 22, 2025 at 3:00 PM
New Home Assistant Podcast!
🔐 I sat down with Jürgen Pansy, co-founder of Nuki, to explore their smart lock tech and how they’re integrating with @home-assistant.io via the Works with HA program. Great insights!
Catch the episode: https://youtu.be/nPZoSeY3H40
🔐 I sat down with Jürgen Pansy, co-founder of Nuki, to explore their smart lock tech and how they’re integrating with @home-assistant.io via the Works with HA program. Great insights!
Catch the episode: https://youtu.be/nPZoSeY3H40
Reposted by Stefan de Lange
How successful has the SciML Small Grants program been at getting newcomers to contribute to open source software #oss for #sciml #julialang and #ai4science? Very!
* 13 total projects initiated
* ~90% success rate
See the blog post summary of the first year!
sciml.ai/news/2025/07...
* 13 total projects initiated
* ~90% success rate
See the blog post summary of the first year!
sciml.ai/news/2025/07...
SciML: Open Source Software for Scientific Machine Learning
Open Source Software for Scientific Machine Learning
sciml.ai
July 20, 2025 at 9:32 PM
How successful has the SciML Small Grants program been at getting newcomers to contribute to open source software #oss for #sciml #julialang and #ai4science? Very!
* 13 total projects initiated
* ~90% success rate
See the blog post summary of the first year!
sciml.ai/news/2025/07...
* 13 total projects initiated
* ~90% success rate
See the blog post summary of the first year!
sciml.ai/news/2025/07...
Reposted by Stefan de Lange
Want mass heat pump adoption? Fix the running costs.
The electricity-to-gas price ratio is key. When policy makes electricity artificially expensive, the cleaner choice isn't the cheaper one. It's time to rebalance energy taxes, as this @thecccuk.bsky.social chart highlights.
The electricity-to-gas price ratio is key. When policy makes electricity artificially expensive, the cleaner choice isn't the cheaper one. It's time to rebalance energy taxes, as this @thecccuk.bsky.social chart highlights.
July 18, 2025 at 11:09 AM
Want mass heat pump adoption? Fix the running costs.
The electricity-to-gas price ratio is key. When policy makes electricity artificially expensive, the cleaner choice isn't the cheaper one. It's time to rebalance energy taxes, as this @thecccuk.bsky.social chart highlights.
The electricity-to-gas price ratio is key. When policy makes electricity artificially expensive, the cleaner choice isn't the cheaper one. It's time to rebalance energy taxes, as this @thecccuk.bsky.social chart highlights.
Reposted by Stefan de Lange
Sometimes I do science for the prestige.
Sometimes I do science for the money.
And sometimes I do science for the pretty pictures.
Preprint at arxiv.org/abs/2505.07308
Explanations in thread ⬇️
Sometimes I do science for the money.
And sometimes I do science for the pretty pictures.
Preprint at arxiv.org/abs/2505.07308
Explanations in thread ⬇️
May 15, 2025 at 4:13 PM
Sometimes I do science for the prestige.
Sometimes I do science for the money.
And sometimes I do science for the pretty pictures.
Preprint at arxiv.org/abs/2505.07308
Explanations in thread ⬇️
Sometimes I do science for the money.
And sometimes I do science for the pretty pictures.
Preprint at arxiv.org/abs/2505.07308
Explanations in thread ⬇️
Reposted by Stefan de Lange
Momenteel spelen er verschillende thema’s in de tweede kamer die wij in Voetnoten (de podcast) afgelopen maanden hebben besproken. Alternatieven voor een nettarief, de hoogte van de energierekening en warmteontwikkelingen. open.spotify.com/show/0JdQsJy... (delen wordt gewaardeerd)
Voetnoten
Podcast · Energeia · Bijna wekelijks verschijnt er een nieuw rapport over de energietransitie. Verplichte kost voor wie de energietransitie wil begrijpen. Maar bijna niemand komt voorbij de management...
open.spotify.com
February 20, 2025 at 11:51 AM
Momenteel spelen er verschillende thema’s in de tweede kamer die wij in Voetnoten (de podcast) afgelopen maanden hebben besproken. Alternatieven voor een nettarief, de hoogte van de energierekening en warmteontwikkelingen. open.spotify.com/show/0JdQsJy... (delen wordt gewaardeerd)
Reposted by Stefan de Lange
I’m going to put my rich guy hat on and say I hope that Mexico and Canada issue equal, retaliatory tariffs and stick to them for an extended period.
I apologize to all the people it will cost money and the businesses it will hurt.
But it’s the only way for tariffs to be seen for what they are
I apologize to all the people it will cost money and the businesses it will hurt.
But it’s the only way for tariffs to be seen for what they are
February 2, 2025 at 12:02 AM
I’m going to put my rich guy hat on and say I hope that Mexico and Canada issue equal, retaliatory tariffs and stick to them for an extended period.
I apologize to all the people it will cost money and the businesses it will hurt.
But it’s the only way for tariffs to be seen for what they are
I apologize to all the people it will cost money and the businesses it will hurt.
But it’s the only way for tariffs to be seen for what they are
Reposted by Stefan de Lange
1/
Here is another true masterpiece produced by Cassini Imaging Team.
The spectacular view was acquired by Cassini on 30 January 2007, when the spacecraft was at roughly 1.1 million km from Saturn.
PIA08347➡️ photojournal.jpl.nasa.gov/catalog/PIA0...
🔭 🧪 #planetsci #histsci #Saturn #Cassini
Here is another true masterpiece produced by Cassini Imaging Team.
The spectacular view was acquired by Cassini on 30 January 2007, when the spacecraft was at roughly 1.1 million km from Saturn.
PIA08347➡️ photojournal.jpl.nasa.gov/catalog/PIA0...
🔭 🧪 #planetsci #histsci #Saturn #Cassini
January 22, 2025 at 8:27 AM
1/
Here is another true masterpiece produced by Cassini Imaging Team.
The spectacular view was acquired by Cassini on 30 January 2007, when the spacecraft was at roughly 1.1 million km from Saturn.
PIA08347➡️ photojournal.jpl.nasa.gov/catalog/PIA0...
🔭 🧪 #planetsci #histsci #Saturn #Cassini
Here is another true masterpiece produced by Cassini Imaging Team.
The spectacular view was acquired by Cassini on 30 January 2007, when the spacecraft was at roughly 1.1 million km from Saturn.
PIA08347➡️ photojournal.jpl.nasa.gov/catalog/PIA0...
🔭 🧪 #planetsci #histsci #Saturn #Cassini
Reposted by Stefan de Lange
There is and will be no Z2 Steam Deck. Guessing the slide was meant to say the series is meant for products like that, not announcing anything specific.
January 6, 2025 at 1:02 PM
There is and will be no Z2 Steam Deck. Guessing the slide was meant to say the series is meant for products like that, not announcing anything specific.
Reposted by Stefan de Lange
(sorry to bang on about heat pumps)
Just saw the below from a dutch forum "tweakers" someone made and did the airflow calcs for a beautiful raised bed to go over their heat pump, meanwhile @gjuk.bsky.social's company produces something that looks like a school bin.
Just saw the below from a dutch forum "tweakers" someone made and did the airflow calcs for a beautiful raised bed to go over their heat pump, meanwhile @gjuk.bsky.social's company produces something that looks like a school bin.
January 6, 2025 at 4:01 PM
(sorry to bang on about heat pumps)
Just saw the below from a dutch forum "tweakers" someone made and did the airflow calcs for a beautiful raised bed to go over their heat pump, meanwhile @gjuk.bsky.social's company produces something that looks like a school bin.
Just saw the below from a dutch forum "tweakers" someone made and did the airflow calcs for a beautiful raised bed to go over their heat pump, meanwhile @gjuk.bsky.social's company produces something that looks like a school bin.
#solarenergy community, I am looking for resources on estimation of shading loss. Machine learning, physics based and hybrid methods are all welcome
December 25, 2024 at 3:39 PM
#solarenergy community, I am looking for resources on estimation of shading loss. Machine learning, physics based and hybrid methods are all welcome
Reposted by Stefan de Lange
NEW STARTER PACK! Who are the most creative, persuasive people and organizations that are truly CHANGING THE BROAD CONVERSATION ABOUT BETTER CITIES? The game-changers & mind-changers? This one I teamed up with superb marketer/brander @tomflood.bsky.social to curate. Please share! go.bsky.app/7iNmiCU
December 16, 2024 at 8:14 PM
NEW STARTER PACK! Who are the most creative, persuasive people and organizations that are truly CHANGING THE BROAD CONVERSATION ABOUT BETTER CITIES? The game-changers & mind-changers? This one I teamed up with superb marketer/brander @tomflood.bsky.social to curate. Please share! go.bsky.app/7iNmiCU
For your dose of Motivation by Guillaume listen to this great episode :)
Look mommy, I’m famous now! Exhibit A: I’m on a podcast 📻
If you’re eager to hear me ramble about open source software, autodiff, French pronunciation, and of course #JuliaLang, tune in below
open.spotify.com/episode/20ml...
If you’re eager to hear me ramble about open source software, autodiff, French pronunciation, and of course #JuliaLang, tune in below
open.spotify.com/episode/20ml...
Automatic differentiation with Guillaume Dalle
Julia Dispatch · Episode
open.spotify.com
December 19, 2024 at 12:44 PM
For your dose of Motivation by Guillaume listen to this great episode :)
Looks like from next year I will be working on the R&D of heat pumps 😄 yay!
December 19, 2024 at 12:00 AM
Looks like from next year I will be working on the R&D of heat pumps 😄 yay!
hi @maximerobeyns.bsky.social
Just wanted to let you know your article on VJPs and JVPs (maximerobeyns.com/of_vjps_and_...) is not properly rendering which makes it hard to read. It's a great resource so would be nice if that can be fixed
Just wanted to let you know your article on VJPs and JVPs (maximerobeyns.com/of_vjps_and_...) is not properly rendering which makes it hard to read. It's a great resource so would be nice if that can be fixed
Of VJPs and JVPs
Some intuitions and visualisations of vector-Jacobian products and Jacobian-vector products, to help you avoid confusing the two again.
maximerobeyns.com
December 15, 2024 at 3:57 PM
hi @maximerobeyns.bsky.social
Just wanted to let you know your article on VJPs and JVPs (maximerobeyns.com/of_vjps_and_...) is not properly rendering which makes it hard to read. It's a great resource so would be nice if that can be fixed
Just wanted to let you know your article on VJPs and JVPs (maximerobeyns.com/of_vjps_and_...) is not properly rendering which makes it hard to read. It's a great resource so would be nice if that can be fixed
This is a fantastic episode from BetaTalk on high performing heat pump systems and monitoring: betatalk.buzzsprout.com/509671/episo...
Now we need to get more Dutch systems on heatpumpmonitor.org !
Now we need to get more Dutch systems on heatpumpmonitor.org !
UK's Top Performing Heat Pump Systems on Heat Pump Monitor - BetaTalk - The Renewable Energy and Low Carbon Heating Podcast
Nathan welcomes back to the show Trystan and Glyn, the brilliant team behind heatpumpmonitor.orgBetaTalk would also like to mention the legendary John Cantor, one of the UK's first ever heat pump guru...
betatalk.buzzsprout.com
December 13, 2024 at 7:58 AM
This is a fantastic episode from BetaTalk on high performing heat pump systems and monitoring: betatalk.buzzsprout.com/509671/episo...
Now we need to get more Dutch systems on heatpumpmonitor.org !
Now we need to get more Dutch systems on heatpumpmonitor.org !
December 10, 2024 at 2:48 AM