samcheng

38 ms·

391.
by samcheng 8y ago
5G seems like a pretty marginal improvement over LTE to me. The improved latency is nice, but I'm not sure it's worth the many billions of dollars in hardware alone. The high-frequency stuff would be useful in some situations, b
392.
by samcheng 8y ago
It's in the works: https://en.wikipedia.org/wiki/Automatic_train_operation I think unions will get in the way as much as they can, unfortunately. As an example, a 'fireman' rode along on diesel and oil
393.
by samcheng 8y ago
The proposed site is near stations for both Caltrain and BART. Those are significantly more effective transit systems than the VTA light rail (which I agree is terrible).
394.
by samcheng 8y ago
That's how the Tesla chargers work. It also looks like CHAdeMO has a 'Plug and Charge' protocol defined: https://www.chademo.com/chademo-releases-the-latest-version-... But that's pretty new, and not the
395.
by samcheng 8y ago
We made that exact transition, and the limitation you describe is real - you can’t get anything out of GA, particularly at the granularity you’ll have with an alternative. So it’s best to start early, because it’s a slow process. It’s even
396.
by samcheng 8y ago
RINSE | San Francisco, Los Angeles, Washington DC, Chicago, Boston | Full-Time, Onsite Lead/Senior/Principal Engineer - Software Engineer - Software Intern Rinse provides technology-enabled dry cleaning and laundry delivery servic
397.
by samcheng 8y ago
It seems like Netflix is thinking the same way. Their "Bandersnatch" Black Mirror special (released recently) has a choose-your-own adventure interactivity to it. I'd consider it a spiritual successor to the books. https:&
398.
by samcheng 8y ago
The modern version of this utilizes an array or grid of microphones with synchronized clocks, and is quite effective in locating gunfire. The most famous manufacturer is "ShotSpotter." https://en.wikipedia.org/wiki
399.
by samcheng 8y ago
Sounds like you should move to Mars! The Mars day is roughly 40 minutes longer than Earth's.
400.
by samcheng 8y ago
Bloom filters are an example of a hashing data structure that does not support delete. So yes, such a tradeoff can be made. Maybe some DHT implementations also make deletion hard? (In general, I'd much rather mark something as invali
401.
by samcheng 8y ago
RINSE | San Francisco, Los Angeles, Washington DC, Chicago, Boston | Full-Time, Onsite Lead/Senior Engineer - Software Engineer - Software Intern Rinse provides technology-enabled dry cleaning and laundry delivery services in five citi
402.
by samcheng 8y ago
They were there a couple of weeks ago, and should be there now (they winter in the eucalyptus grove). Thousands of them.
403.
by samcheng 8y ago
Solidworks is quite popular; it's not THAT hard to pick up, but make sure you have a real mouse as the middle button / scroll wheel are important. They have an educational version for $150. https://store.solidworks.com
404.
by samcheng 8y ago
This was clearly satire, but the idea is that only a certain subset of people are active enough to ride a bike. If e-scooters take off, that's a new/larger group of people traveling at 15mph. Infrastructure that was marginal for t
405.
by samcheng 8y ago
RINSE | San Francisco, Los Angeles, Washington DC, Chicago, Boston | Onsite Rinse provides technology-enabled dry cleaning and laundry delivery services in five cities now, and we're growing rapidly! We're hiring a Lead or Senior
406.
by samcheng 8y ago
Seems like a very similar access pattern to Map Reduce. It should be valuable for analytical workloads - do analytics databases like Amazon Redshift support this kind of thing already?
407.
by samcheng 8y ago
This is really impactful work. Data centers are 2% of US electricity consumption, and a 20% improvement in idle energy usage will cut that by a sizable fraction. (Even if virtualization is intended to reduce idle hardware capacity.)
408.
by samcheng 8y ago
The Model S was released in the summer of 2012; we don't know what the batteries will look like after 10 years yet. I agree that they will likely still be serviceable, though.
409.
by samcheng 8y ago
Hello, we have engineers working out of our other offices, too!
410.
by samcheng 8y ago
Look under the hood of a Tesla, and you'll understand why maintenance costs are lower. There is still a lot that can go wrong on the body, notably the infamous door handles, but the power train is just much, much simpler. Notably, no
411.
by samcheng 8y ago
RINSE | San Francisco, Los Angeles, Washington DC, Chicago, Boston | Onsite Rinse provides technology-enabled dry cleaning and laundry delivery services in five cities now, and we're growing rapidly! We're hiring a Lead or Senior
412.
by samcheng 8y ago
I used both of them, but migrated to Postgres permanently a decade ago. Early on in my career, the biggest selling point for Mysql was the excellent web admin tool "phpMyAdmin" - it really helped get applications off the ground, s
413.
by samcheng 8y ago
Maybe not that great for battery-type applications. After all, you still need to turn that hydrogen into useful work, and it's much harder to recharge than a battery.
414.
by samcheng 8y ago
What are you using for python? PostGIS? osgeo/gdal? Some of the other libraries like Shapely or pyshp?
415.
by samcheng 8y ago
Foxconn is a Taiwanese company. Even though many of their factories are in China, the company also has factories across the world, with headquarters located free from Chinese government control. It's also apparently the largest privat
416.
by samcheng 8y ago
If you don't know what accent (not really a "language") the Chicago Tribune is writing about, you can get a hint of it from this famous parody: https://www.youtube.com/watch?v=kBnnon_iZOM (This is Saturday Ni
417.
by samcheng 8y ago
Well, L.A. has its own difficulty, at a larger scale, with the tangle of freeways and ramps, special lanes, multiple names for freeways, etc. Surface streets do follow that nice, logical grid, though.
418.
by samcheng 8y ago
"Unless someone like you cares a whole awful lot, nothing's going to get better. It's not." - Dr. Seuss, The Lorax
419.
by samcheng 8y ago
What are the modern bathing luxuries that will 'trickle down' (so to speak) to the rest of us sooner or later? I know of: Steam showers Electrically-heated floors Rain showers (not new; mentioned in the article) Hot wate
420.
by samcheng 8y ago
Solar is quite location (and latitude) dependent. Duluth gets about half of the annual Global Horizontal Irradiance that Tuscon does, and that's before accounting for the fact that snow will sometimes cover the panels. In addition, Mi

More ›