Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
m4rtink
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
29 ms
·
871.
▲
by
m4rtink
1y ago
Or even better - ride a continuous fission detonation powered by the worlds biggest super-soaker! :) https://en.wikipedia.org/wiki/Nuclear_salt-water_rocket
872.
▲
by
m4rtink
1y ago
I think this again shows an unhealthy fixation on planets. Sure, they are nice and big and if you are very lucky might be even habitable. But given that you already have a massive mobile self sufficient workstation in space it would IMHO
873.
▲
by
m4rtink
1y ago
So basically a beam rider, right ? https://www.orionsarm.com/eg-article/460c3685cd4c4
874.
▲
by
m4rtink
1y ago
Yeah, you can use 2 drones - first one removes the cover/doors, second one enters the previously enclosed area. Just make sure the second drone does not cut the fiber optics cable trailed by the first drone by accident.
875.
▲
by
m4rtink
1y ago
Arent those instant nowadays ? Also if there was a reason those take some time or are not as convenient as car payment so far (not sure there are any such reasons) you could just fill your Steam wallet and then pay for individual games from
876.
▲
by
m4rtink
1y ago
I would say the main element of their success is not really in any specific close kept secrets - its in actually committing to reusable rockets and keep working until they had a working system. While there are some really nice components an
877.
▲
by
m4rtink
1y ago
Interestingly enough, the same world ending technology can be used for interstellar travel & could have been used since the 1950s! https://en.m.wikipedia.org/wiki/Project_Orion_(nuclear_propu... https://
878.
▲
by
m4rtink
1y ago
That is easier said than done - modern reactors are in the 1000 MW+ electrical power range, which means about 3x as much heat needs to be generated to get this much electricity - say 3000 MW. Even when you correctly shut down the chain reac
879.
▲
by
m4rtink
1y ago
Fukushima was based on a Westinghouse BWR (Boiling Water Reactor) design, so pressurization was not that much of an issue - if enough of sufficiently cold water was provided, there would be no meltdown.
880.
▲
by
m4rtink
1y ago
IIRC the issue was the emergency diesel generators being flooded, preventing them from powering the emergency cooling pumps, resulting in the meltdowns from residual heat in the reactor cores and spent fuel pools. Various construction chang
881.
▲
by
m4rtink
1y ago
I am still skeptical it would work out for regular aircraft due to all the moving mechanical parts, not o mention battery charge cycles for night flying. But I could definitely see it working for autonomous underwater drones that glide in t
882.
▲
by
m4rtink
1y ago
IIRC O’Neill cylinders type 3 cylinders were supposed to be built in pairs - even the first picture on the Wikipeda article has them like that: https://en.wikipedia.org/wiki/O%27Neill_cylinder Wouldn't that cancel
883.
▲
by
m4rtink
1y ago
Slipper ships were actually one of the most high tech sailing ships of their day, the last generation basically before practical high sea steam ships took over. Was scurvy even an issue by that time ?
884.
▲
by
m4rtink
1y ago
Also one more note about shielding in general - at least in the Solar system, you need to work with two types of radiation regimes: 1) The roughly constant stream of radiation from the Sun & deep space. That drives your shielding baseli
885.
▲
by
m4rtink
1y ago
Just a note about shielding & alternative spin gravity concepts: If you just spin two masses connected by cables, the shielded area can possibly be much smaller, reducing shielding weight or enabling better shielding for the same mass.
886.
▲
by
m4rtink
1y ago
You can do very low cost rotating gravity if you don't mind some of the downsides. Eq. you can basically split your craft to 2 pieces of ~same weight, connect them with cables and have them rotate around the shared center of mass in th
887.
▲
by
m4rtink
1y ago
They benefit from user buying a new phone when they stop providing updates for it. If the bootloader can be unlocked, the community can take over support & the device will be used for longer. Kinda like a 10+ old laptop is perfectly fun
888.
▲
by
m4rtink
1y ago
Spin would be indeed the most problematic, but the Starlink satellites only have krypton hall thrusters. Very efficient but also very low thrust - you you could not actually significantly waste fuel this way even if you wanted to.
889.
▲
by
m4rtink
1y ago
And also to prevent European powers trying to kill each other for the third time in a century, setting the whole world on fire in the process - for the third time in a century. Arguably that worked. :-)
890.
▲
by
m4rtink
1y ago
The metric being more lines of code usually turnes out to not be a very good one. Can it also help you do the same with less lines of code & reduced complexity ?
891.
▲
by
m4rtink
1y ago
Didn't Sony gobble up a whole bunch of stuff from FReeBSD for the last few Playstation release without hardly contributing anything back at all ? IIRC the might have sent some patches to improve SMP or sponsored a conference. Same with
892.
▲
by
m4rtink
1y ago
I think it is only required on x86 EFI machines due to some old antitrust rulings. Provided the firmware vendor actually implements it right. On ARM for example the hardware, including some hardware shipping with ARM version of Windows, doe
893.
▲
by
m4rtink
1y ago
Mobile phones and a lot of embedded systems have minimal system firmware like this and it is a total disaster, basically forcing you to have per device special software releases with all the hardware specific things EFI would abstract for y
894.
▲
by
m4rtink
1y ago
That is a Debian/Ubuntu deb package quirk - RPM installation on Fedora/RHEL/OpenSUSE is fully non-interactive, as it should be. So not only are less technical users not confused, but you will never return only to see a system
895.
▲
by
m4rtink
1y ago
Who would have though including a hard depedency on third part service with unclear long term availability would be a problem! Paid compilers and remotely acessible mainframes all over again - people apparently never learn.
896.
▲
by
m4rtink
1y ago
Real world ICE barier! :D
897.
▲
by
m4rtink
1y ago
Would be quite different if they patched it and broke important extensions, possibly facing serieous outcry and bad publicity.
898.
▲
by
m4rtink
1y ago
Solar Oberth manuever FTW! :D The High Frontier board game from Phil Eklund even has it as a valid option on its orbital map of the Solar system. :)
899.
▲
by
m4rtink
1y ago
Most states have sizeable underground gas storages, often reusing old oil and gas fields. The capacity being from weeks to months of normal use, possibly much longer with some rationing. This mostly turned out to be sufficient to enable a q
900.
▲
by
m4rtink
1y ago
Anyone else thinks destroying books for any reason is wrong ? Or is it perhaps not an universal cultural/moral aspect ? I guess for example in Europe people could be more sensitive to it.
More ›