2DcAf

5 ms·

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Manufacturing and design aspects of BYD powertrain commented during disassembly [video](youtube.com)
1 points by 2DcAf 4mo ago|0 comments
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Appendix: Mental Health for the Engineering Student(ariadacapo.net)
3 points by 2DcAf 5mo ago|0 comments
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by 2DcAf 5mo ago
One week later, a follow-up. I went through the largest JPG files and was able to shave 7 MB off the final PDF file size, with no noticeable drop in quality, as far as I can tell: https://framagit.org/olivier/thermodyna
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by 2DcAf 5mo ago
Thank you for the compliment! I am touched by the generosity of the HN people today.
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by 2DcAf 5mo ago
It’s accessible with end-of-high school math: you need to be okay-ish with integration and derivation. Practicing engineers might find it a bit slow, but that’s for each to decide :-)
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by 2DcAf 5mo ago
Glad the book can help! Regarding image size, it’s on my todo list now (see thread further down the page). I am using Payhip for the transaction, and then Paypal. Fees end up averaging 0,5€. Calculating in terms of percentage is not really
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by 2DcAf 5mo ago
I used to think that way about the publishing industry too, but I now think that this description is not deserved. Just observing it from an operational perspective: a laptop to type, software to edit, book printers that will talk to you, p
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by 2DcAf 5mo ago
Thank you! ^^
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by 2DcAf 5mo ago
ha yes :-) Carnot died of cholera aged 36, and Rudolf Diesel committed suicide too. Maybe I should add an appendix about mental health at the end!
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by 2DcAf 5mo ago
The payment for the paid-for PDF is processed through Payhip. As far as I can test here in Germany no cell number is required. Maybe you trigger some extra verification that I don’t? As for the email, I require it so that I can subscribe al
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by 2DcAf 5mo ago
that’s a really good place to start, thank you!
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by 2DcAf 5mo ago
Thank you! To be honest I think there is not much there because when I started 17 years ago my technical skills were much shallower, plotting a diagram to visualize/compare two models would have been quite a lot of work. But if I can b
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by 2DcAf 5mo ago
Thanks for that. At first glance, it looks like that is a good place to be, regarding images. I will still investigate when I find time.
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by 2DcAf 5mo ago
I have not kept a very close look on what’s going on. I would say that three things have changed since: - tablets are everywhere in the classrooms now, so the number of places where a good PDF can do good is much bigger - there are better w
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by 2DcAf 5mo ago
Following up with actual numbers for the project, from Lulu, in Euros: List Price 43 Print cost 11 Distribution fees (read: Amazon, 50% of selling price): 21.5 Lulu share of profit : 2 Rest to author: 8,5 Because of the different prices on
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by 2DcAf 5mo ago
Indeed! Truth be told, I think the book really is missing a chapter on refrigeration systems. I had to call it done at some point for my own sanity. Maybe someone will jump in and add one someday!
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by 2DcAf 5mo ago
Thanks! I think most of the weight comes from the PNG diagrams, but I don’t actually know: I’ll put it on my to-do list to investigate, maybe there are some easy wins here.
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by 2DcAf 5mo ago
Amazon takes the lion’s share, and then the rest of the pie looks very different depending on which route you go. Big publishers print in batches and have very low print/distribution costs. I ended up on the other end of the spectrum,
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Show HN: Free textbook on engineering thermodynamics(thermodynamicsbook.com)
191 points by 2DcAf 5mo ago|48 comments
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by 2DcAf 9mo ago
https://ariadacapo.net/
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Things Teachers Can Learn from the Aviation Industry(ariadacapo.net)
1 points by 2DcAf 2y ago|0 comments