this post was submitted on 02 Aug 2026
830 points (97.3% liked)
Lemmy Shitpost
41169 readers
3522 users here now
Welcome to Lemmy Shitpost. Here you can shitpost to your hearts content.
Anything and everything goes. Memes, Jokes, Vents and Banter. Though we still have to comply with lemmy.world instance rules. So behave!
Rules:
1. Be Respectful
Refrain from using harmful language pertaining to a protected characteristic: e.g. race, gender, sexuality, disability or religion.
Refrain from being argumentative when responding or commenting to posts/replies. Personal attacks are not welcome here.
...
2. No Illegal Content
Content that violates the law. Any post/comment found to be in breach of common law will be removed and given to the authorities if required.
That means:
-No promoting violence/threats against any individuals
-No CSA content or Revenge Porn
-No sharing private/personal information (Doxxing)
...
3. No Spam
Posting the same post, no matter the intent is against the rules.
-If you have posted content, please refrain from re-posting said content within this community.
-Do not spam posts with intent to harass, annoy, bully, advertise, scam or harm this community.
-No posting Scams/Advertisements/Phishing Links/IP Grabbers
-No Bots, Bots will be banned from the community.
...
4. No Porn/Explicit
Content
-Do not post explicit content. Lemmy.World is not the instance for NSFW content.
-Do not post Gore or Shock Content.
...
5. No Enciting Harassment,
Brigading, Doxxing or Witch Hunts
-Do not Brigade other Communities
-No calls to action against other communities/users within Lemmy or outside of Lemmy.
-No Witch Hunts against users/communities.
-No content that harasses members within or outside of the community.
...
6. NSFW should be behind NSFW tags.
-Content that is NSFW should be behind NSFW tags.
-Content that might be distressing should be kept behind NSFW tags.
...
If you see content that is a breach of the rules, please flag and report the comment and a moderator will take action where they can.
Also check out:
Partnered Communities:
1.Memes
10.LinuxMemes (Linux themed memes)
Reach out to
All communities included on the sidebar are to be made in compliance with the instance rules. Striker
founded 3 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Pi can be seen in real life (obviously not with full precision, but close enough). Simply make a 1 cm rod on a lathe and measure its circumference, and you'll see it's ~3.141 cm
The same goes for root 2. Simply measure the diagonal of a 1 cm square
Not sure where you'd see e in real life, though (excluding as the base of an exponential, because any exponential can be trivially rewritten with any base)
@glibg10b @Rugnjr I ran this past my (engineer) SO and, after grumbling at being nerd-sniped, he came up with something you could measure to derive e.
He said a capacitor filled through a resistor for a time unit equal to "RC" gives you a simple formula that solves for e.
I think I may have got that right? Most of this is gibberish to me, but he gesticulated wildly and held up random electronic things at me so I think he had something.
I'm a computer engineering student and you remembered correctly, it reaches the final voltage times (1 - 1/e) at the time given by the time constant. Though technically e is the base of an exponential in this case
Mathematically, the thing about e that causes this is the fact that d/dx (e^x^) = e^x^. In simpler terms, if a car is driving in a straight line and its speed increases e (2.71) times per second, then its distance travelled always equals its speed (plus some amount that doesn't change) (ignoring units)
The other cool property about e that I know of relates to complex numbers, but I don't think I can explain that in a way that's easy to understand