callcc
@callcc@lemmy.world
- Comment on What are some games with absolutely fantastic soundtracks? 3 weeks ago:
Unreal
- Comment on DIY experimental Redox Flow Battery kit 5 weeks ago:
I’m not the designer of this. I’ve also wondered. Maybe it’s just a practical choice to have something tough to attach your wires to.
- Comment on DIY experimental Redox Flow Battery kit 5 weeks ago:
Not sure what MH is but in bigger systems magnetically coupled centrifugal pumps are used afaik.
- Comment on DIY experimental Redox Flow Battery kit 5 weeks ago:
The roadmap defines 3 milestone batteries. The first is released, it’s a benchtop device that you can relatively easily build on your own. It has an electrode side of 2 x 2cm2. It does not store any significant amount of energy. The second one is being developed right now, it has a cell the size of a small 3d printer bed (20x20cm) and will also not store practical amounts of energy. It will hopefully prove though that they are on the right track and that they can scale it up. The third battery only will store significant amounts of energy but in only due end of the year (probably later).
Current Vanadium systems cost approx. 300-600$/kWh according to some random website I found. The goal of this project is to spread the knowledge about Redox Flow Batteries and in the medium term only make them commercially viable.
The aniolyth and catholyth are based on the Zink-Iodine system in an aqueous solution. There are a bunch of other systems though, each with their trade offs. The anode and cathode are both graphite felt in the case of the dev kit.
- Comment on DIY experimental Redox Flow Battery kit 5 weeks ago:
You need Polypropylen filament for printing, graphite felt as electrode, grafoil gasket material as bipolar plate, brass plate as current collector (cut by cnc), silicone gasket material and a measurment device like a potentiostat.
- Submitted 5 weeks ago to technology@lemmy.world | 2 comments
- Submitted 5 weeks ago to 3dprinting@lemmy.world | 11 comments
- Submitted 5 weeks ago to diy@slrpnk.net | 0 comments
- Comment on VERY simple web-based reliable file browser/hosting 1 month ago:
Don’t recommend using FTP. It’s a shitty old protocol that needs to die. Just use nginx or apache with directory listing enabled.
- Comment on YSK that apart from not having a car, the single greatest thing you can do for the climate is simply eating less red meat 1 month ago:
If you don’t consent to being born into this world right now, would that not mean that you should just kill yourself? I off course don’t mean to say that you should, but I’m curious why you have a drive to live, and thereby consuming precious resources that could benefit less defeatist people. Or would you have chosen differently if you had been asked when you were born.
I understand that we seem to be in a global situation where imminent doom is unavoidable but maybe you should ask older people or read up, because I think these things happen on a regular basis.
And no, I don’t want to downplay the consequences of the multiple clusterfuck of global catastrophes we’re heading into (since a long time). Maybe I’m just a hopeless optimist :).
- Comment on Friendly reminder that Tailscale is VC-funded and driving towards IPO 2 months ago:
Just came here to say that the guy looks like a creep!
- Comment on Self hosted Teams alternative? 2 months ago:
No, I rarely read the code of software I use, especially crypto code since thant’s not my thing. But good to know that you did. Thanks for your opinion.
- Comment on Self hosted Teams alternative? 3 months ago:
Please tell us more about the actual security problems!
- Comment on How to harden against SSH brute-forcing? 4 months ago:
Agreed!
- Comment on How to harden against SSH brute-forcing? 4 months ago:
Be sure to use a passphrase
- Comment on How to harden against SSH brute-forcing? 4 months ago:
Welcome to the internet! Your system will get probed. Make sure you run as little as possible services on open ports and only high quality ones such as OpenSSH. Don’t freak out because of your logs. You’re fine as long as your system is up to date and password login disabled! Don’t listen to the fail2ban or VPN crowd. Those are only snake oil.
A VPN is probably just as (in)secure as OpenSSH. There is no gain in complicating things. OpenSSH is probably one of the most well tested code for security around.
- Comment on Europe’s GDPR privacy law is headed for red tape bonfire within ‘weeks’ 4 months ago:
Cookie banners are not mandated by GDPR. It’s an unrelated piece of law.
- Comment on Low resource, Performant WAF 5 months ago:
Wafs don’t make you safer but create unnecessary attack surface. Just keep your machine and services up to date.
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
Argh, hate them!
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
I’m from Europe and headlights suck here too! It’s spectrum of LEDs and tall cars and probably bad regulations too.
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
My problem is that I drive a low car (Ford fiesta) and most other cars are taller, this makes them way more blinding.
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
What I currently do is to take out my own headlight from its holder and deliberately point into their eyes. At least the message should be clear.
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
Yeah, I guess that’s one part of the problem. It’s not like most people care that much. But if that’s the only replacement lights you can get… :/
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
Just flash twice!! lyricsintosong.ai/…/02a3d10d-b96b-42e4-b839-8d73a…
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
Totally, I’m commuting by bike almost every work day of the year and it’s infuriating how many cyclists have their headlights misaligned.
- Comment on FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lights 5 months ago:
Hah, nice. The more the merrier!
- FuckYourHeadlights - A community for people to organise and vent about ridiculously bright lightslemmy.world ↗Submitted 5 months ago to newcommunities@lemmy.world | 161 comments
- Comment on Alien planter head 5 months ago:
The fuzzy skin came out very nicely!
- Comment on Microsoft Office support in Windows 10 ends in October too - what that really means 5 months ago:
Came here to answer this :D surely didn’t read that article
- Comment on Email provider for home server alerts 5 months ago:
They rock.I’m sometimes afraid they will be bought or change terms.