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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: …

Thank you for the compliment! I am touched by the generosity of the HN people today.

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 …

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 avera…

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 ty…

Thank you! ^^

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!

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’…

that’s a really good place to start, thank you!

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 mod…

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.

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 wher…

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…

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 …

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.

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/distributi…

Author here. Feel free to send questions of any kind.

https://ariadacapo.net/