madvoid
Joined 15 years ago
Karma
146
Submissions
63
Member since
Sep 30
Contact me at [email protected]
View on Hacker NewsRecent submissions
Comment · 2 years ago
What's more alarming is this site is pretty high up on google when you search for "Staub cast iron".
Comment · 3 years ago
Imagine you're a 16th century Italian mathematician who is trying to solve cubic equations. You notice that when you try to solve some equations, you end up with a sqrt(-1) in your work. If you're Cardano, you call those terms "irreducible" and forget about them. If you're Bombelli, you realize that if you continue working at the equation while assuming sqrt(-1) is a distinct mathematical entity, you can find the real roots of cubic equations.
So I would say that it's less that "Complex numbers were invented so that we can take square roots of negative numbers", and more "Assuming that sqrt(-1) is a mathematical entity lets us solve certain cubic equations, and that's useful and interesting". Eventually, people just called sqrt(-1) "i", and then invented/discovered a lot of other math.
Source: http://fermatslasttheorem.blogspot.com/2006/12/bombelli-and-...
Comment · 3 years ago
For small scale circuits, I like Scherz's "Practical Electronics for Inventors". For a good high level overview of the grid, along with other civil engineering topics, Grady Hillhouse's "Engineering in Plain Sight" is good. Hillhouse's videos pop up on HN occasionally (e.g., https://news.ycombinator.com/item?id=34472122)
Comment · 4 years ago
I love that the whitepaper doesn't actually have any white pages...
Comment · 4 years ago
Everything he makes is great, I'd also highly recommend the GPS explanation.
Comment · 4 years ago
Amen. Due to reliability and lack of updates I don't use it anymore but Nintype was by far the best mobile typing experience I've had.
Comment · 4 years ago
Recently switched from a Kindle to a Kobo and here are my findings so far:
Kobo Pros:
* Natively handle .epub files
* Overdrive integration for library books
* Dropbox integration so it's quick to transfer files from my laptop
* Pocket integration. Being able to read long form web articles on an e-ink screen is a game changer for me.
* OS is generally better
* Minor, but I like seeing the book I'm reading on the sleep screen
Kobo cons:
* Buttons are slightly worse than the Kindle's
* For the Sage, the battery life is worse than the Kindle. I've heard the other models are better though.
Comment · 4 years ago
Burning man being NIMBY about geothermal energy (https://www.rgj.com/story/life/arts/burning-man/2022/01/10/b...) probably has more negative impacts towards the climate than their fires.
Comment · 4 years ago
I linked to the Reddit page because the creator of the site seems to be active there.
Comment · 4 years ago
Home automation or LEDs are always a good start in my opinion. Home automation because it's something that will affect your life and you'll notice, LEDs because they're pretty (e.g. https://news.ycombinator.com/item?id=29468919).
Comment · 5 years ago
Thank you for the link. My mayor is on here which I'm very unhappy about.
Comment · 5 years ago
I got a pair of AfterShokz (https://aftershokz.com/us/) for swimming and in some ways it’s more convenient than an iPod shuffle because the headphones are integrated. I really like the bone conduction tech too.
Comment · 5 years ago
I actually think what you eat is the dominating factor in food CO2 production: https://ourworldindata.org/uploads/2020/02/Environmental-imp... Transport and processing are fairly minor components overall for all foods. The claim about pesticides and fertilizers I know nothing about though.
