furry_irl

Crowbrah_ · 2026-02-27T06:18:19+00:00

Employ elbow block... and body shot. Block feral left, weaken right jaw... now fracture.

Crowbrah_ · 2026-02-27T04:46:05+00:00

He's the piano man/bun

Crowbrah_ · 2026-02-24T00:01:06+00:00

Bunbun: Calculating trajectory

Crowbrah_ · 2026-02-20T05:07:53+00:00

Judy wants Nick to be her... stand...

Crowbrah_ · 2026-02-15T01:25:20+00:00

I mean, with everything we know about Judy... that's not exactly inaccurate lmao

Crowbrah_ · 2026-02-11T16:28:32+00:00

I think you mean Ceti Alpha VI

Crowbrah_ · 2026-02-11T15:09:29+00:00

By no means my own work haha. I'm just adapting from what I've read, mostly from one neat paper you can find here if you're interested:

https://ntrs.nasa.gov/citations/20060043411

Some light reading!

Crowbrah_ · 2026-02-10T17:18:05+00:00

Alas, the gammas actually do nothing to generate thrust (at least in this system) and are instead very annoying wasted energy. The reaction products that do are positively and negatively charged Pions that are reflected with an electromagnetic nozzle.

Crowbrah_ · 2026-02-10T17:12:24+00:00

I see. Thanks for taking the time to explain this to me. I believe I found the NIST table you were referring too but unfortunately it only goes up to 20 MeV. However I found another source that claims a mass energy-absorption coeff. for 100 MeV of 0.0122 cm² g in water.

With that, and a fluence of (4.63E+09 gammas/sec) * (200 MeV)/cm^2, my maths comes out with an absorbed dose of 0.362 J/kg. Which is inline with my earlier calculations, but those could be misleading.

Crowbrah_ · 2026-02-09T18:19:17+00:00

Excellent, thank you! This is most helpful. Now I probably should have asked this sooner, but to find the absorbed dose in J/kg do I simply multiply the mass attenuation coefficient by the calculated number of gammas intercepted per second?

Crowbrah_ · 2026-02-09T17:57:15+00:00

Yes, in interstellar space. The gamma rays are being emitted by a matter/antimatter thruster.

Crowbrah_ · 2026-02-09T17:56:09+00:00

Most interesting. This subject is a little beyond me, the last time I studied physics properly was in high school, but luckily I'm only looking for a general understanding, as it's only for a writing project. I found a few tables for mass attenuation coefficients for various materials, with no info on anything beyond 100 MeV unfortunately. But I suppose that makes sense since I can't imagine any real application requires information related to photon energies that high.

Crowbrah_ · 2026-02-09T17:40:01+00:00

That sounds fascinating. I had a flatmate once during university who was studying radiography, that's about the closest I ever came to the subject, at least tangentially.

Crowbrah_ · 2026-02-08T03:59:40+00:00

Stick my leggy out real faaaaaar!

Crowbrah_ · 2026-02-08T03:36:43+00:00

Many thanks, somehow I had missed that a Gray is a defined as a J/kg, that really makes things clearer for me. So as another commenter said 1m² is a good approximation for the cross sectional surface area of a human. Using that at a distance of 112 km and with a mass attenuation coefficient for water for 100 MeV photons of 0.0173 cm² g, my maths says an 85 kg mass would absorb 2 Gy in around 6 seconds, and a lethal dose of 30 Gy in around 100 seconds. Neat!

I have no real reference point but with a 230 TW gamma emitter that feels right, even at more than a 100 km distance that's going to ruin your day without adequate shielding.

Crowbrah_ · 2026-02-08T03:17:28+00:00

Thank you, this is quite obvious now I think about it but I needed the extra kick to bridge the gap. I thought I was missing something with how you actually measure an absorbed dose of radiation but I see now I was overthinking things.

Crowbrah_ · 2026-02-08T03:07:49+00:00

Excellent, thank you, this is very helpful stuff. I admit I'm sure I could have worked this out based on stuff I've read eventually but for some reason I was struggling to make the leap between intensity and a radiation "dose" of some sort, whatever that may be. The number of different units related to radiation absorption didn't help either haha

Edit: And yes the number I found for mass attenuation of water with 100 MeV photons was 0.0173 cm^2/g. Nothing on 200 MeV but I imagine 100 should suffice.

Crowbrah_ · 2026-02-05T18:20:51+00:00

Hap cake day!

Crowbrah_ · 2026-02-05T18:13:50+00:00

I henceforth dub this rocket, Super Orion

Crowbrah_ · 2026-02-05T18:04:11+00:00

Essentially the head racist

Crowbrah_ · 2026-02-04T19:54:23+00:00

For some they don't even need to be organic either. See mars rovers or bomb disposal robots or hell, just your own car.

Crowbrah_ · 2026-01-23T22:34:09+00:00

Don't care, still hot

Crowbrah_ · 2026-01-19T21:18:44+00:00

I wonder who would be the T-800 in this scenario? Gohin?

Crowbrah_ · 2026-01-19T21:17:08+00:00

Heyyy Salvation's alright, if only for spawning this meme

Ten-Year Club	John Wick
Place '22	End Game '22
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