jpm_sd

70 ms·

811.
by jpm_sd 9y ago
yes, they made all their patents public awhile back. also: https://www.google.com/search?q=tesla+battery+teardown&oq=te...
812.
by jpm_sd 9y ago
Cobalt cells always have an alarmingly non-zero chance of burning your house down, no matter how good your BMS is. Designing a BMS is a task for an experienced electrical & firmware engineer[ing team].
813.
by jpm_sd 9y ago
re: Tesla - and they have individual fuses on every cell. And they have liquid cooling for every cell. And they have a rugged enclosure that has been designed to fail in a somewhat safe way while (briefly) containing the fire.
814.
by jpm_sd 9y ago
"collecting 18650 cells from old laptop batteries" is literally "mixing and matching rando used batteries". well, cells anyway.
815.
by jpm_sd 9y ago
yep. incredibly dangerous. UL would not be impressed. [I have worked in lithium-ion battery design and testing for >10yr]
816.
by jpm_sd 9y ago
When will you introduce "slap drones"? [1] [1] https://en.wikipedia.org/wiki/The_Culture#Laws
817.
by jpm_sd 9y ago
"This is rather as if you imagine a puddle waking up one morning and thinking, 'This is an interesting world I find myself in — an interesting hole I find myself in — fits me rather neatly, doesn't it? In fact it fits me stag
818.
by jpm_sd 9y ago
This game blew. my. mind. when I was a kid. The first summer we had it, I played it eight hours a day on our IBM PS/2. When school was back in session, I wrote about it and drew maps for school projects. I dreamed about it.
819.
by jpm_sd 9y ago
The new animated show "Daniel Tiger's Neighborhood" is a rare example of a successor that is true to the spirit of the original. My kids love it. https://en.wikipedia.org/wiki/Daniel_Tiger%27s_Neighborhoo
820.
by jpm_sd 9y ago
Yes, among other things. http://saildrone.com/data-capabilities
821.
by jpm_sd 9y ago
Just on-site, sorry.
822.
by jpm_sd 9y ago
If you're interested in helping to solve these problems, we're hiring: http://saildrone.com/#Careers
823.
by jpm_sd 9y ago
In some cases, people do commit crimes to get free room and board, so it's not as far-fetched as you might think.
824.
Custom carpentry with help from robots(news.mit.edu)
1 points by jpm_sd 9y ago|0 comments
825.
by jpm_sd 9y ago
I thought "oughta be enough for anybody" was an obvious "640KB" joke, but maybe I'm just old. Anyway, it certainly is enough money to appropriately cushion an attempt at freelancing. And the best thing to do after l
826.
by jpm_sd 9y ago
Google Stock Unit, internal term for RSU
827.
by jpm_sd 9y ago
<holds envelope to forehead> Because you made enough money that it was an affordable risk? Yes, perf is garbage and management is chaos, but let's be honest with ourselves. Four years' worth of GSUs oughta be enough for anyb
828.
by jpm_sd 9y ago
They're cute, but they don't appear to actually do anything except buzz around...
829.
by jpm_sd 9y ago
The modern approach to robotics uses a high (-ish) speed serial bus - CAN 20 years ago, EtherCAT today - and a distributed network. Centralized chassis based systems are fragile and difficult to upgrade!
830.
by jpm_sd 9y ago
It uses CompactPCI internally? How delightfully antiquated.
831.
Skydio’s AI-powered autonomous R1 drone follows you around in 4K(theverge.com)
8 points by jpm_sd 9y ago|0 comments
832.
by jpm_sd 9y ago
I completely agree (father of 3, here). It's just not that important to record these things. Live in the moment!
833.
by jpm_sd 9y ago
I loved this book! I think any software engineer would enjoy it.
834.
by jpm_sd 9y ago
I'm nearly 40 and I really enjoy Tehanu and The Other Wind much more now than I did when they were first published. I find it much easier to identify with the aging characters. I think TOW is now my favorite of the series.
835.
by jpm_sd 9y ago
Space & automotive: one-offs that have not resulted in any production follow-ons https://ansari.xprize.org/ https://auto.xprize.org/ Ocean tech: incremental improvements to devices that were already in
836.
by jpm_sd 9y ago
The X Prizes have a fairly lousy track record so far. Disappointing, and rather damning for the "moonshot" approach to innovation (as opposed to good old fashioned incremental engineering)
837.
by jpm_sd 9y ago
If you're interested in old-fashioned cooking and/or nautical history, this is a fascinating read: https://www.amazon.com/Lobscouse-Spotted-Dog-Gastronomic-Com...
838.
by jpm_sd 9y ago
It seems like there's a market opportunity to create a property management company that operates on a Wal-Mart or McDonalds scale. Franchises all over the country, consistent architectural design for apartments, consistent management a
839.
by jpm_sd 9y ago
I think that's the Google X mission statement
840.
by jpm_sd 9y ago
My company offers this exact thing as a commercial service: (Solar-powered Sailing-aaS?) http://www.saildrone.com

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