Well, this is correct.
Christian
- 1 Post
- 17 Comments
Voltage is always a difference between two points. It is not absolute - it depends on where you measure from.
When we measure voltage, we always choose a reference point (often called ground or 0 V).
If a point has more electric potential than the reference → voltage is positive
If a point has less electric potential than the reference → voltage is negative
So, a voltage is “negative” only because of the chosen reference point.
Example
Imagine a battery:
- the positive terminal is higher potential
- the negative terminal is lower potential
If you measure like this:
- Red probe on +, black on − → +9 V
- Red probe on −, black on + → −9 V
Same battery, different reference → different sign!
- Voltage is always relative
- Negative voltage means: “This point is lower than the reference point”
- The same physical voltage can appear positive or negative, depending on how you measure it
I use Borg Backup to backup specific folders of my hard disk to my hetzner storage box.
The software is triggered by corn/systemd to start a backup.
Christian@feddit.orgto
Today I Learned@lemmy.world•TIL that "aspirin" was actually originally a trademarked brand name owned by Bayer.English
0·7 months agoIn German a hairdryer is call “Föhn”, which is an old brand name, too.
Christian@feddit.orgto
Ask Lemmy@lemmy.world•How old did you get your driver's license? Did you learn driving from a driving school or from parents? (or some friend or relative?)
3·7 months agoDriving school in Germany. You had to be at least 18 for a driving license. Paid around 1200 €, 24 years ago.
Side note: 24 days if you work 6 days a week, 20 days if you work 5 days a week.
But yes, commonly 30 days if you work 5 days a week.
Christian@feddit.orgto
Tech@programming.dev•Flights disrupted after Airbus discovers intense sun radiation could impact flight control data
7·9 months agoBasically I can confirm this.
Depending on the used hardware, the hard- and software is able to detect and correct these so called “softerrors” or bit flips in the volatile memory (RAM) of a computing system. In our products we have the exact same problem and it depends on the complexity (and at the end on the price $$$) how affected the product is by this physical effect.
https://en.wikipedia.org/wiki/Single-event_upset?wprov=sfti1
htop displays the cpu temperature, if you configure it to do so.
Christian@feddit.orgto
Selfhosted@lemmy.world•Nginx Proxy Manager 2.12.4 Released with Certbot EnhancementsEnglish
1·1 year agoQuestion: Can npm Import my existing configs, i have written by hand?
Christian@feddit.orgOPto
Arch Linux@lemmy.ml•External Display on HP USB-C Dock not working
0·2 years agonot forgetting
linux-headeranddkms;)Works directly after rebooting the Notebook.
Thanks!
Christian@feddit.orgOPto
Arch Linux@lemmy.ml•External Display on HP USB-C Dock not working
0·2 years agoWhat you describe here makes totally sense, since every time I plug a windows device to this docking station a pop up is telling me, that display link drivers are going to be installed…
Maybe I should dig into this display link topic.
Thanks!
Christian@feddit.orgto
Selfhosted@lemmy.world•What do you host for your finances and why!English
7·2 years agoIf you only have one Bank (Account) it is maybe fine.
But if you have multiple accounts (I have 4 Bank accounts for savings and another one for my shares), you would like to have one software/application to handle it. Like the one email client for your different email accounts.
Warum? War bei mir damals™ nicht so, eher im Gegenteil. Erstmal checken, ob auch ja kein Gang eingelegt ist.
Christian@feddit.orgto
Ask Lemmy@lemmy.world•without saying how old you are, how old are you?Deutsch
5·2 years agoMy first tv was black/white and had 8 dials to tune the 8 channels.




I have the same setup (running arch) without issues.