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Loreno Heer

@lorenoheer.bsky.social

Scientist: PhD in mathematics. Working in hyperbolic geometry, analysis in metric spaces and mathematical physics (gravitational waves and general relativity), broad range of other scientific interests. Here mostly to connect with researchers. he/him

3,301 Followers  |  8,441 Following  |  293 Posts  |  Joined: 26.07.2023  |  1.8382

Latest posts by lorenoheer.bsky.social on Bluesky

Among big birds I would rate: Emu > Shoebill > Emperor penguin > Cassowary > Big Bird > Ostrich

10.08.2025 14:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

#SocialistSunday #Solidarity! ✊ ✊ ✊

At a time when what's left of our 'democracy' is under real threat, we need to work together, organise and fight back!

#FreePalestine! πŸ‡΅πŸ‡Έ πŸ‡΅πŸ‡Έ πŸ‡΅πŸ‡Έ

10.08.2025 10:17 β€” πŸ‘ 53    πŸ” 25    πŸ’¬ 6    πŸ“Œ 1

Diddy Kong Racing

10.08.2025 09:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is wrong information: Switzerland did not yet (publicly) cancel the order, some politicians are urging for the order to be canceled though. Balthasar GlΓ€ttli is one member of 200 of the national council. There will most likely be a popular vote about cancelling the order.

10.08.2025 08:17 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
Close-up in front of a demolished apartment: shattered concrete, dangling wires, exposed steel. He looks hungry and worn outβ€”but still standing. Please help him survive.

Close-up in front of a demolished apartment: shattered concrete, dangling wires, exposed steel. He looks hungry and worn outβ€”but still standing. Please help him survive.

If you can read this, you can save me
I’m Sakher from Gaza. Tonight my family has no bread. Prices are impossible we skip meals, we faint, and we keep praying for a normal day. If you can, please help us eat and stay safe. Even $5–$10 today means bread, and a little hope for us

gofund.me/f116bf44

10.08.2025 05:36 β€” πŸ‘ 114    πŸ” 170    πŸ’¬ 9    πŸ“Œ 42
Post image 08.08.2025 06:00 β€” πŸ‘ 52    πŸ” 37    πŸ’¬ 0    πŸ“Œ 1

LOSING MY MIND, they KNEW the soil was so arsenic contaminated that originally rice COULDN'T GROW.

So they developed a strain of rice that could grow and it made them suck up even more poison from the soil
www.nature.com/news/2005/05...

07.08.2025 18:09 β€” πŸ‘ 123    πŸ” 30    πŸ’¬ 7    πŸ“Œ 1
Comic. A snake slithers around a hypercube. No two non-consecutive parts of its coils can be on adjacent corners. [Three small 4-dimensional hypercubes showing disallowed options with one large cube with snake wrapped around it. Dimensions = 4. Max Length - 7.] Snake(N) = Longest snake that can fit in an n-dimensional hypercube. Snake(N=1, 2, 3…8) = 1, 2, 4, 7, 13, 26, 50, 98. Snake(N>8) = UNSOLVED. [caption] It turns out every scientific field has a key thought experiment that involves putting a cute animal in a weird box for no reason. So far, quantum mechanics and graph theory have found theirs, but most other fields are still working on it.

Comic. A snake slithers around a hypercube. No two non-consecutive parts of its coils can be on adjacent corners. [Three small 4-dimensional hypercubes showing disallowed options with one large cube with snake wrapped around it. Dimensions = 4. Max Length - 7.] Snake(N) = Longest snake that can fit in an n-dimensional hypercube. Snake(N=1, 2, 3…8) = 1, 2, 4, 7, 13, 26, 50, 98. Snake(N>8) = UNSOLVED. [caption] It turns out every scientific field has a key thought experiment that involves putting a cute animal in a weird box for no reason. So far, quantum mechanics and graph theory have found theirs, but most other fields are still working on it.

Snake-in-the-Box Problem

xkcd.com/3125/

08.08.2025 04:22 β€” πŸ‘ 3843    πŸ” 537    πŸ’¬ 51    πŸ“Œ 27

Straight out of labubutt

07.08.2025 18:58 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Congratulations πŸ‘πŸŽ‰πŸ˜Š

07.08.2025 17:53 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

No pride in genocide.

07.08.2025 17:50 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Leucocoprinus birnbaumii. Just don't eat it, it is toxic.

07.08.2025 12:45 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Or a IBM 6580 Displaywriter System...

07.08.2025 08:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Happy birthday πŸ₯³πŸŽ‰

06.08.2025 17:13 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

At least for near IR regular lenses work just fine besides some focus shift. I have no idea about thermal though, afaik the spectrum is quite a bit further out. For UV you mostly need fluorite and/or quartz for good results but some regular lenses might just work too.

06.08.2025 17:07 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Too many billionaires, not enough Cape Buffalo bulls.

06.08.2025 13:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

That sounds like fun 😌

04.08.2025 10:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I had no idea about this. wow.

02.08.2025 19:00 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

The mathematics of starvation: Israel controls the flow of food into Gaza. Israel has calculated how many calories Palestinians need to stay alive…data compiled & published by Israel’s own government makes clear that it has been starving Gaza - not Hamas.

www.theguardian.com/world/2025/j...

01.08.2025 05:38 β€” πŸ‘ 4    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Ja zur EinschrΓ€nkung von Feuerwerk

www.feuerwerksinitiative.ch/de

Hoffe das BΓΆllern ist bald vorbei.

01.08.2025 08:25 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
The collective West decided to censor the entire internet instead of not doing genocide Since the Online Safety Act came into effect, we've seen an awful lot of political censorship and nothing in the way of saving children.

who voted for this?

www.councilestatemedia.uk/p/no-governm...

31.07.2025 09:34 β€” πŸ‘ 163    πŸ” 74    πŸ’¬ 14    πŸ“Œ 8

Dr. Jaz studying Uranus.

31.07.2025 11:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Nice to see some Plomari ouzo.

31.07.2025 09:37 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It only took a western newspaper almost 2 years of massacres by Israel, to publish the names of those killed. Any Palestinian name. Still no pictures, no story. Because they did not care earlier...

The first few thousand names on the list by the way are babies who did not even turn 1 year old...

30.07.2025 11:02 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Cute. Such nice photos.

30.07.2025 17:05 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I love those little guys

29.07.2025 21:49 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Israel’s aid concessions merely offer Gazans survival on a leash To deflect international outrage, Israel’s strategy is clear: maintain enough control to kill with impunity, and enough relief to look humane while doing it.

"To deflect international outrage, Israel’s strategy is clear: maintain enough control to kill with impunity, and enough relief to look humane while doing it."

www.972mag.com/gaza-humanit...

29.07.2025 19:29 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Post image

Horrifying.

29.07.2025 15:43 β€” πŸ‘ 40    πŸ” 29    πŸ’¬ 1    πŸ“Œ 1
Post image

BOOM! πŸ’₯

More than 300 Israeli Academics: "Stop The Genocide in Gaza"

29.07.2025 07:45 β€” πŸ‘ 55    πŸ” 30    πŸ’¬ 1    πŸ“Œ 2

This will revolutionize IPoAC.

29.07.2025 14:43 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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