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shapes in shapes in flux. might not be a content blog

[nictitropy]

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[averyterrible]

There should be a convenient formula that, given an unordered set of digits of finite length, you can bijectively map it to the integers. I can prove it pretty easily. Identifying a good one is tougher.

[averyterrible]

Given a number n, we can decompose it into digits n1, n2, etc. and perform an aggregation function on the resulting digits such that we get a unique integer value A for n, and any number m with f(m) = A must have the same set of digits as n, but it’s okay for it to have a different order.

So, if we assert f(29) = 8 then f(92) =8 but no other number x can have f(x) = 8.

I have the beginning of an answer based on counting up digit sets in the range 10^log(n) to 10^log(n+1), but it feels like I can do something easier than that too. Maybe I’d have to derive it out from the counting problem anyway.

[nictitropy]

sort and find lexical index? it's not arithmetic but it's programmable

[nictitropy]

An ant colony can thrive for decades, changing its behavior based on past events even as individual ants die off every year or so

important if true

[nictitropy]

After decades of rumors and searches, the existence of a two-foot-long amphibian called “the reticulated siren” has finally been confirmed.

large friend

[the-dragonlords-lair]

so, how long till this Tumblr bans us for being horny on main

[miedriwesley]

Well let’s see, we all use the internet let’s say 6 hours a day, times 4 years, minus we’re not bots…

Hmm…. 3 week, yes.

We all have 3 weeks to live.

[mnyehlike]

WOOOOO!

WOO-O!

Woo…

What?

[simonbitdiddle]

I HAVE POSTED NOTHING BUT PORN FOR THE PAST THREE DAYS!

[eesharp]

Prophetic

[nictitropy]

I spent 15 years sanding and grinding mussel shells to create my sculptures. I had no idea they were slowly killing me

[nictitropy]

It feeds its young a white, nutritious fluid secreted from its underside.

your completely unnecessary information for today is

[twocubes]

sacred geometry but it’s the opposite it’s unholy geometry and alsso it’s algebraic geometry

[alberto-balsalm]

wouldn’t the opposite be profane geometry? like, haha this plane curve looks like a butt

[twocubes]

like this?

edit: forgot sourcing: here

[nictitropy]

The massive plugs contain spikes and dips of stress hormones that perfectly match the history of modern whaling.

on things you didnt know can come out of animals and what they happen to be able to tell

[nictitropy]

Thanks to the compounds used to protect precious flowers, antifungal resistance is here—and it could be just as dangerous to humans as antibiotic resistance.

now plant farms can join the fun

[animatedscreenshots]

Riven

[flatluigi]

i still think this is cool as fuck and I want to see someone make a map projector like this for real one day

[nictitropy]

there’s a giant, slow, low-res one here and a small, fast, low-res one here

[nictitropy]

What appears to be a life-affirming triumph is really a cautionary tale about drones and wildlife.

don’t harass bears

[nictitropy]

i can’t figure out at what level that this is pulling my leg

[nictitropy]

A man spent millions on an enormous plot of land near Reno. Now he wants to build a community based on the blockchain technology introduced by Bitcoin.

i guess you can try

[nictitropy]

"Omniphobic" might sound like a way to describe someone who is afraid of everything, but it actually refers to a special type of surface that repels virtually any liquid. Such surfaces could potentially be used in everything from ship hulls that reduce drag and increase efficiency, to coverings that resist stains and protect against damaging chemicals. But the omniphobic surfaces developed so far suffer from a major problem: Condensation can quickly disable their liquid-shedding properties.

advances in liquid-repelling tech coincidentally looks pretty cool

[nictitropy]

for... if... you need it

[nictitropy]

Ain’t no mountain high enough to escape climate change.

hill-climbing optimization