Inautilo#Design #Techniques
Practical animation tips · Ways to make your animations feel more delightful https://ilo.im/167ai7
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#Animations #Durations #Easings #Scalings #ProductDesign #UiDesign #WebDesign #Development #WebDev #Frontend
Michele Beart
Morton Feldman - Durations 1-5
synlogicsubmitted "latlearn", my Golang latency instrumentation and reporting lib, to HN:
https://news.ycombinator.com/item?id=37549103
I expect it to BOMB like basically everything else I seem to do lately. I clearly have very different tastes and values than like 99.9999% of humanity online. lol
but I'm not bitter! no not all. heh
#golang
#programming
#HN
#HackerNews
#latency
#instrumentation
#API
#monitoring
#observability
#performance
#scalability
#scaling
#timespans
#durations
#metrics
#datadriven
#bottlenecks
Frank Wappler@RefurioAnachro
> <em> [...] acceleration doesn't even appear in the calculation [of arc length]. </em>
Looking at textbook exercises, perhaps.
But there's dependence cmp.
https://mathstodon.xyz/@MisterRelativity/109622725097842951
where Lorentzian distance
\[\ell[ \, p, q \, ] := \underset{(\gamma \in \Gamma_p^q)}{\text{Sup}}[ \, \{ \tau_{\gamma} \} \, ] \]
requires comparison of #durations \(\tau_{\gamma}\)
In #SR you'd need to know + fix who remains a member of an #InertialSystem ; but finding out is a hard problem in #GR
Frank Wappler (@[email protected])
Finally, a generalization of equality (5/7) by Lorentzian distance: \(\newcommand{\ef}{\varepsilon_{(A\, \Phi)}}\) \(\newcommand{\es}{\varepsilon_{(A\, \Psi)}}\) \(\newcommand{\ep}{\varepsilon_{(A\, P)}}\) \(a_A:=c\,\text{lim}\left[\sqrt{\frac{\begin{vmatrix}0&1&1&1\\1&0&\ell^2[\ef,\ep]&\ell^2[\ef,\es]\\1&\ell^2[\ef,\ep]&0&\ell^2[\ep,\es]\\1&\ell^2[\ef,\es]&\ell^2[\ep,\es]&0\end{vmatrix}}{\ell^2[\ef,\ep]\,\ell^2[\ef,\es]\,\ell^2[\ep,\es]}}\right]\) (7/7) #Relativity #TeachRelativity #SpaceTime
@RefurioAnachro
> <em> Does time dilation require #acceleration? [...] </em>
As semi-popular videos put it:
basically.
The (relevant) "twin paradox" comparison is between arc lenghts (#durations) of 2 distinct time-like #spacetime curves; with the same "initial" event, and with the same "final" event;
regardless of
- whether either curve consists only of events in which the same one particular participant took part throughout,
- or of consecutive pieces "traced" by distinct participants.