Viewing profile — jbert
jbert
HN member- Joined
- Tue, Feb 20, 2007, 8:26 AM UTC
- HN karma
- 1,244
- Public activity
- 509 items
- HN profile
- View on Hacker News ↗
About jbert
And is hosted at the popular gmail domain used by COMpanies.
Recent public activity
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Comment #13016142
One difference is in "dead connection detection". How do you know that your AMQP connection is down? At some level you're polling, whether that be TCP keepalive, application keepal…
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Comment #11902267
The setup process for our Cocoon home security device ( https://cocoon.life ) uses an audio transfer from the phone to pass wifi details and a token to bootstrap setup and a trust …
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Comment #11057142
Isn't the calculation (assuming (for simplicity) one CPU, running at 100% only on application load) 60 requests/sec => each request takes 1/60s CPU-second == 16.6ms of CPU time to …
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Comment #10709401
I disagree. Names are comments. You don't want more mutable state across large scopes, but using intermediate names can help comprehension.
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Comment #10707119
> your business plan must make sense to the investors. Would locking in dividends in the business plan allow the investors to become "directly involved" and make investment in a "g…
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Comment #10676150
> And with language support I don't have to introduce new names for each occurrence; Having as a name is only useful I think if you don't want to give it another name? I was asking…
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Comment #10673041
Is there a significant benefit to this over using a new name for the result? y = (x + 1) / atan(x) - x; x = y; // If you're in a loop and updating some value If would hope/imagine …
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Comment #10214685
Is the "but at that kind of energy output we'll boil the planet" limiting case really a hard limit though? If we're at the stage of having super-dense energy sources and super-tech…
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Comment #9846782
In the pre-smtp days, email links were over UUCP, which was often relayed via dial up lines which connected intermittently, on a schedule (e.g. every hour). You also specified not …
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Comment #9831781
> The founders of the USA were not immigrants, they didn't immigrate to join Indian tribes, they were founders of a country. Sorry, I'm afraid I don't understand the distinction yo…
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Comment #9795438
Thanks - useful point. But, I think that's more of an oddity of nested, named subs than anything else. The usual anonymous subs close as you'd expect (as you say).
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Comment #9789622
I'm interested in the details of the variable scoping problems are. I'd have thought that perl's explicit declaration of lexicals with 'my' was better than "declare at first use" o…
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Comment #9776423
Does this places a reasonable selection pressure on the kinds of flying insects we can have? Big enough to shrug off a raindrop hit, or small enough to surf along the surface tensi…
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Comment #9692220
Does it have to be an open system? Can't the already-contaminated water be used for cooling in a mostly-closed system? And if the expansion due to rainwater is significant, perhaps…
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Comment #9686514
Someone did a nice calculator hack a little while back, based upon an old reddit comment of mine: http://tlrobinson.net/blog/2007/12/presenting-gccalc-a-horri... http://www.reddit.…
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Comment #9665547
A related one which I found is A + B - B != A In pretty much the same case, where A==some time and B == 1 month This came up in calculations for monthly subscriptions, trying to re…
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Comment #9595820
Not entirely unlike running a garbage collection cycle (or freeing a pool) after each HTTP request...
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Comment #9532144
Yes, but as long as the same method is used to generate the hash, the same browser could connect to multiple services and share the same content. In that sense there needn't be a s…
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Comment #9376993
Perhaps stretch out a flow battery with a pair of pipelines? http://en.wikipedia.org/wiki/Flow_battery We could repurpose those oil pipelines we no longer need. :-)
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Comment #9370708
Is there any way to use drag to decay the orbit? We don't have to reach the sun quickly . The solar wind is blowing past, is it possible to "sail" against that at an angle and - ov…
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Comment #9306657
Huh - the other domains in *.google are hitting a default page. Perhaps the most-robustly-hosted apache default page in the world? http://foo.google/ http://wewjfkenf.google/
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Comment #9185308
People want to try on several pairs of glasses and see which ones they look best in. So if you control the retail chain, you've got the monopoly. They said their competition was wa…
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Comment #8965167
Do you know if there is any bias to the orientation of the jets? e.g. in a spiral galaxy, do they tend to align with the axis of rotation and so do less damage locally (spray out "…
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Comment #8942674
You said: "In other words, it's just wouldn't be practically possible to create an application that uses standard memory allocation functions and reliably can free some memory back…
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Comment #8935376
> You're right, though; metadata on the allocations themselves marking them as release-on-memory-pressure would be much better. http://man7.org/linux/man-pages/man2/madvise.2.html …