Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
drran
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
87 ms
·
901.
▲
by
drran
6y ago
> Some situations appear and develop in less than 3 seconds (think small child jumping in front of your car from between parked cars). You might only have 1s to react and if you are not "plugged in" and fully attentive at that
902.
▲
by
drran
6y ago
Yep, but hydro dams are used to control floods too, so they save people from floods as part of their operation. An improperly maintained dam can increase risk of flood, of course. See also: https://energypedia.info/wiki/
903.
▲
by
drran
6y ago
I have no idea where you got these numbers, but nuclear energy is good for base load, while batteries are good for handling load peaks. These two types of load are very different. With big batteries, nuclear energy can be accumulated at nig
904.
▲
by
drran
6y ago
BTW, nuclear energy will be cheaper with massive power storage, because nuclear power can be accumulated at night then.
905.
▲
by
drran
6y ago
What you propose to use instead of dams in place of flood protection?
906.
▲
by
drran
6y ago
Massive energy storage can^W will be built in fraction of time needed to build and then demolish a nuclear power plant.
907.
▲
by
drran
6y ago
Looks too good to be true: https://en.wikipedia.org/wiki/Rapid_single_flux_quantum
908.
▲
by
drran
6y ago
Wuhan lab is not unique. Virus can be leaked from any other lab. For example, Vector lab in Novosibirsk had a major breach just before the epidemic: equipment was stolen from the lab by first responders after a blast and fire. https:/
909.
▲
by
drran
6y ago
I developed this style at Bazarvoice about 15 years ago. :-)
910.
▲
by
drran
6y ago
Multi OS/arch executables exists for decades. They were called fat-binaries[0]. Old trick is new again. [0]: https://en.wikipedia.org/wiki/Fat_binary https://en.wikipedia.org/wiki/Universal_bi
911.
▲
by
drran
6y ago
Maybe we should use phase instead of voltage level. For terahertz computations we will need completely different physics anyway. For example, p-p-p can encode 0, p--p-p — +1, p-p--p — -1, where p is pulse.
912.
▲
by
drran
6y ago
Did you validate capacity? $90/kWh looks great.
913.
▲
by
drran
6y ago
I use Marker markdown editor + MathJax + embedded JavaScript to achieve similar results.
914.
▲
by
drran
6y ago
1) If we put a very small box around the heat pump, then we will see that temperature in the box increases at constant rate, because of energy loses at the pump. I.e., it will work as a resistive heater, by converting 100% of input electric
915.
▲
by
drran
6y ago
You can create your own repository, where you will be maintainer of your packages. You can use it locally, as directory on disk, or you can put it on a server and share with others, or you can compile it using openSUSE Build Service, which
916.
▲
by
drran
6y ago
English is not my native language. Did I use the word "ambient" properly?
917.
▲
by
drran
6y ago
Ambient heat is not a "heat taken in", because you don't need to supply it. Usually, heat is taken out from the system and dissipate as ambient heat, so a heat pump can use the same heat again and again, without exhausting of
918.
▲
by
drran
6y ago
Are you trying to liquify vacuum? It's challenging. Try to use a heat pump based on the Casemir effect, fluctuating virtual particles violate the energy conservation of the system for short periods.
919.
▲
by
drran
6y ago
Definition of efficiency (from Google): the ratio of the useful work performed by a machine or in a process to the total energy expended or heat taken in. Heat pumps are >100% efficient. Usually, we cannot convert all input energy into u
920.
▲
by
drran
6y ago
$45/hour can be $0 per year on SO. Adjust your expectations.
921.
▲
by
drran
6y ago
Basically, you want to put two versions of the same file(s) into one file. If you need two versions of almost same set of files, then chose different name for the package, e.g. package-2, chose different base directory for package files, e
922.
▲
by
drran
6y ago
Isn't Future lifetime must be tied to I/O operation, so Future will not outlive I/O operation? Can you post an example, please?
923.
▲
by
drran
6y ago
If you want for your software to work everywhere, but you want to avoid compilation step, then use Perl/Python/PHP with bindings to QT/GTK. Linux has perfect backward compatibility, I still able to compile and run 70 years ol
924.
▲
by
drran
6y ago
My distro works just fine, when an X11 app crashes due to a bug in the Nvidia driver, but I cannot.
925.
▲
by
drran
6y ago
I see no problem to bump versions of a few packages, rebuild them, and install them via system package manager. Are you developer or user? Of course, some software may not work after that, but package manager newer stays in your way, unless
926.
▲
by
drran
6y ago
CPAN exists since 1993, online since 1995. CPAN has the package manager, which is able to install perl software with their dependencies. It's not a new, unknown technology. If you are sure that you can create functional, stable, bug fr
927.
▲
by
drran
6y ago
It's why we like to use LGPL for libraries: if you ship statically linked software, ship your source too, so we will be able to patch and recompile.
928.
▲
by
drran
6y ago
Rust in Fedora is compiled with system LLVM (libLLVM-11.so). Enjoy.
929.
▲
by
drran
6y ago
> will get their patches as soon as upstream fixes them i.e. never. Lot of upstreams are abandoned with tons of PR's waiting years for somebody to merge in.
930.
▲
by
drran
6y ago
It's temporary, I'm sure. When broken software or a weaponized patch will slip through weak fence of maintainers and then break critical infrastructure, Congress will vote for something to stop that.
More ›