samcheng

46 ms·

451.
by samcheng 9y ago
They're not turning those electrons into photons; they're using the electrons to transfer energy from the accelerator into gamma photons. The electrons aren't annihilated in the process.
452.
by samcheng 9y ago
Gee, have some compassion. After all, someone's got to be the janitor or the cashier, and it's tough to pay sky-high rent on that kind of pay. There's actually a substantial debate about car camping in Palo Alto. A parking&
453.
by samcheng 9y ago
Another interesting profile is that of the Google engineer living in the parking lot: http://www.businessinsider.com/google-employee-lives-in-truc...
454.
by samcheng 9y ago
Hello, we're actually open to satellite arrangements in our other cities, especially Chicago. Here in SF we work from home twice a week, so we already have a strong remote culture. Happy to chat about it if you're interested.
455.
by samcheng 9y ago
RINSE | San Francisco, CA, Culver City, CA, Washington, DC, Chicago, IL, Boston, MA | Full Time Rinse is a technology-enabled dry cleaning and laundry delivery service. We've grown at double-digit month-over-month rates for about four
456.
by samcheng 9y ago
It's not mentioned in the article, but I really think President Trump has been a savior for Twitter. Without those controversial tweets, Twitter would rarely be in much of the public's mind, and the company would have continued it
457.
by samcheng 9y ago
Be careful, Tesla drivers discovered that never using the brake, particularly in areas that use salt on the roads, results in expensive corrosion. Automotive brakes haven't been designed with one-pedal driving in mind... https:&#x2
458.
by samcheng 9y ago
The correct terms are "load shifting" or "peak shaving." But, in a way, they are storing energy (thermally) in a similar way to batteries. One could imagine freezing water or condensing ammonia over night using surplus
459.
by samcheng 9y ago
RINSE | San Francisco, CA, Culver City, CA, Washington, DC, Chicago, IL, Boston, MA | Full Time Rinse is a technology-enabled dry cleaning and laundry delivery service. We've grown at double-digit month-over-month rates for about four
460.
by samcheng 9y ago
Looking at the numbers, iOS is significantly better in reducing version fragmentation. Like you said, it's much easier to do this when you don't have dozens of OEMs in the way.
461.
by samcheng 9y ago
93% of iPhones are on the latest major OS version. Compare this with the mess that is Android versioning. There is a sizable cohort all the way back to 4.4, which significantly complicates app development and testing. https://fos
462.
by samcheng 9y ago
I'm surprised they didn't use one of the existing diesel-electric hybrid dump trucks as a base model. That seems like an easier conversion than converting a truck with a mechanical transmission. Here's an example diesel-elec
463.
by samcheng 9y ago
This is the company that pioneered the automotive gasoline engine. https://en.wikipedia.org/wiki/Gottlieb_Daimler It's pretty clear (once you drive an EV) that a sea change is coming - they have reached the point
464.
by samcheng 9y ago
Is there something cultural in Boston that encourages this kind of misbehavior? The Patriots are also notorious cheaters. https://en.wikipedia.org/wiki/2007_New_England_Patriots_vide... https://en.wikipedia.
465.
by samcheng 9y ago
Offshore wind is considerably more expensive to build, maintain, and interconnect. This article suggests that offshore wind is 3X as expensive as onshore wind: http://www.windpowermonthly.com/article/1380738/global
466.
by samcheng 9y ago
Once you factor in the costs to decommission a nuclear facility, nuclear becomes one of the most expensive options.
467.
by samcheng 9y ago
It's cheap in the places that are windy. One big challenge (mentioned tangentially in the article) is in moving this cheap energy from the windy center of the continent to the populated coasts. The coolest project to tackle this probl
468.
by samcheng 9y ago
RINSE | San Francisco, CA, Culver City, CA, Washington, DC, Chicago, IL, Boston, MA | Full Time Rinse is a technology-enabled dry cleaning and laundry delivery service. We've grown at double-digit month-over-month rates for about four
469.
by samcheng 9y ago
This is a 115-year-old company, with one of the most valuable brands in the world, a long history of technological innovation, and legendary German engineering, chasing a 15-year-old upstart with less than a tenth of the sales volume. Even
470.
by samcheng 9y ago
As a casual user on a Mac, I've long since abandoned GIMP for Pixelmator + Imagemagick. Has GIMP improved in usability in the past few years?
471.
by samcheng 9y ago
As one of those under-deluge hiring managers, I've found that candidates have already begun hiding their bootcamp / academy education during the application process. It is still pretty obvious, though: the resumes are all the sa
472.
by samcheng 9y ago
You're right; the shift away from old-growth timber logging, along with fisheries decline/regulation, all had significant impact as well. We were talking about major employers causing city-wide economic trouble, though. Not sure
473.
by samcheng 9y ago
It happened in Seattle already with Boeing's decline in the 70s and 80s. That malaise is what spawned the 'grunge' music scene in the early 90s.
474.
by samcheng 9y ago
Desk lamps are an interesting sidestep of the issue!
475.
Ask HN: Optimum office lighting for developers?
1 points by samcheng 9y ago|2 comments
476.
by samcheng 9y ago
How can the article mention the 'third revolution' without describing the first two? What are they, gunpowder and nuclear weapons? Airpower? Bronze armor? The professional army? IEDs?
477.
by samcheng 9y ago
RINSE | San Francisco, CA, Culver City, CA, Washington, DC, Chicago, IL, Boston, MA | Full Time Rinse is a technology-enabled dry cleaning and laundry delivery service. We've grown at double-digit month-over-month rates for about four
478.
by samcheng 9y ago
The article mentions that the energy input from combustion is significantly higher than that from insolation in Manhattan in January, but also that the primary driver of the heat island effect is from building materials. Obviously asphalt r
479.
by samcheng 9y ago
Does anyone know how much the automobile directly and indirectly contributes to the heat island effect? Not only do you have thousands of vehicles burning thousands of gallons of petroleum, you also have low-albedo asphalt parking lots ever
480.
by samcheng 9y ago
You are correct, the article has a typo and should state 'decompresses' instead of 'compresses.'

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