The Large Hadron Collider collides protons. A good source of protons is Hydrogen, just strip the electrons off and away you go.
This little red bottle is their Hydrogen source. Not for a week or a year...that one bottle is enough for 200,000 years.

(Img: https://commons.wikimedia.org/wiki/User:Saintfevrier)

User:Saintfevrier - Wikimedia Commons

@_thegeoff

D'autant plus que la vanne est fermée : les 2 manomètres sont à 0 🤣

@Gergovie Just crack it open and shut, and you've got enough for a lifetime's work ;)
@_thegeoff I wonder if the leak rate is faster than the consumption rate.
@Dtl Ha! I'm guessing yes, by quite a lot!
@_thegeoff Love the fact that someone just handwrote « 100 kV » on the yellow sign, just in case somebody thought there was no serious danger
@simondenier It's all about current limitation at that level ;)
@simondenier @_thegeoff
An engineer or physicist - "what do you mean by 'high voltage?' 1kV 6kV? 100kV? 1MV?" It makes a difference"
@DavidPenington @simondenier I had this conversation with some of my 6th years this week. Our VdG generator is about 50kV. It stings, but is basically harmless. Our 5kV power supply is dodgier, it can keep supplying the "sting" at low current.
The REALLY dangerous thing though? The 400V supply that will happily supply amps, not milli or microamps. That last one needs the special cables.
@_thegeoff
I love that white label "a proton source". Feels like the kind of label I put when I label something just for the sake of doing so
@lonion Only a step away from using your labelmaker to print a label for your labelmaker reading "labelmaker" 🤣
@_thegeoff
well... I stumbled upon big and small labels at work so I made a big "mycomputer" label and a small "label of mycomputer" label that I stuck on the bigger label and I secretly hope I can find an even smaller label