Well, this is correct.
Christian
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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
12·8 months agoIn German a hairdryer is called “Fön”/“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?)
3·8 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.
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.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.