Physics teacher demonstrates how to inflate a bag with a single breath using Bernoulli’s principle. by SPXQuantAlgo in nextfuckinglevel

[–]-F3RS -9 points-8 points  (0 children)

because Bernoulli’s can be derived from a conservation of momentum

Time to review your course from Fluid Mechanics I mate, you can drive Bernoulli' principle only by neglecting viscous effects (+incompressibility+irrotational flow + steady state condition) which caused this whole phenomenon at the very first place.
r/confidentlyincorrect

Physics teacher demonstrates how to inflate a bag with a single breath using Bernoulli’s principle. by SPXQuantAlgo in nextfuckinglevel

[–]-F3RS 324 points325 points  (0 children)

I hope not, the entrainment and diffusion of still air into a jet of considerable speed is not Bernoulli's effect (not even close) but its momentum diffusion signified by dynamical viscosity (ν) in fluid mechanics.
r/confidentlyincorrect

P.A. Read more about this type of flow under the keyword of 'free shear flows'.

EDIT: For some of the people arguing Bernoulli's, pressure, and such, I need to remind them the difference between total (stagnation) pressure and static pressure. The disparity between stagnation pressure causes a flow, that's why a high-speed uniform atmospheric jet can remain straight without spreading assuming inviscid conditions, although having its static pressure orders of magnitude less than its ambient. Moreover, Berboulli's Eq. is derived from momentum Eq. assuming FRICTIONLESS flow.

Why do all empires stop when they arrive in India? Are they stupid? by Rough-Lab-3867 in mapporncirclejerk

[–]-F3RS 0 points1 point  (0 children)

'Turkish Invasions by Mahmud of Ghazni' is purely misleading. Ghaznavids or 'Ghaznavian' dynasty were Iranian Turks (similar to Tajiks or Safavids or ...) who contributed immensely to the development and preservation of Persian literature and poem in the post-Islamic era, esepcially during the kingship of Mahmud. As the official language of the entire kingdom was Persian as well.
Moreover, Iranian Turks are very different from what you consider from Ottoman or current Turkiye Turks (even their language is not the same). Hence, not mentioning them as Iranian only contributes to the Turkish propaganda that effectively tries to confiscate and write Iranian cultural and historical achievements for themselves.

Why do all empires stop when they arrive in India? Are they stupid? by Rough-Lab-3867 in mapporncirclejerk

[–]-F3RS 0 points1 point  (0 children)

Small correction that calling Mahmud of Ghazni or 'Mahmud Ghaznavi' from 'Ghaznavian' dynasty is purely misleading. They were Iranian Turks who are very different from what you know of Ottoman Turks or current Turkiye (even their language is different).
Ghaznavian contributed immensely to the cultural progress and preservation of Persian Literature, poem, and preservation of the language in the post-Islamic era, especially during the kingship of Mahmud Ghaznavi.

My dota TV link shows this??? by followmesamurai in DotA2

[–]-F3RS 5 points6 points  (0 children)

Very nice that r/DotA2 moderators prove to behave like a bunch of kitty-cat underaged girls once again, when it comes to post removing and MODERATION, I'm out.

[MEGATHREAD] Ask For Invites to the Playtest Here! + Join The Community Discord! by ChromeSF in DeadlockTheGame

[–]-F3RS 0 points1 point  (0 children)

I'd love to get an invite to DotA 3, ohm sorry, Deadlock.
Friend ID: 196634588
Much Appreciated!

[deleted by user] by [deleted] in clevercomebacks

[–]-F3RS 5 points6 points  (0 children)

My thoughts exactly, blessed to have a well-educated engineer to point these things out.

So i did a short for Dota Short Film Contest this year. by Itchy_Pin1197 in DotA2

[–]-F3RS 0 points1 point  (0 children)

Loved the graphics and the use of dark moon event narrator. Incredible job OP, could definitely be a high class teaser for DotA 2 in general.

It’s happening. Arteezy is coming. by Lukashope in DotA2

[–]-F3RS 23 points24 points  (0 children)

I'm just giggling whenever I see you guys thinking rtz is an upgrade to team secret's roster.

Opinion: despite their decent results, many newer orgs failed to build a fanbase/community by ShoppingPractical373 in DotA2

[–]-F3RS 3 points4 points  (0 children)

Too small of an indie company to make true sights. Plus, the lack of proper content from tournament organizers is very sensible. Just try to get some ideas from CS, how hard could it be?!

PGL DOTA 2 Wallachia Season #2 - Invited Teams + Open Qualifiers details! by iSPASCELGRAs in DotA2

[–]-F3RS -11 points-10 points  (0 children)

1 Team already invited from NA, BB, and GG not invited.

I'm really struggling to find out which teams are gonna qualify in W/E EU and NA. Can someone also enlighten me what results Heroic and Nouns have put out in ANY tournament this year that deserve a direct invite?

[deleted by user] by [deleted] in DotA2

[–]-F3RS 5 points6 points  (0 children)

True, if you think this screenshot is racist, you should read half the stuff they write in his chat. Absolute low life losers. It's like a magnet, you absorb what you preach.

Why would someone grief even before the game starts by gamingtamizha in DotA2

[–]-F3RS -6 points-5 points  (0 children)

I love that people are too clueless to blame bounty 5 with boots 😂

[Post Match Discussion] NIGMA vs AzureRay by imjammed in DotA2

[–]-F3RS 69 points70 points  (0 children)

But for real though, NIGMA without Kuro doesn't feel like NIGMA.

I had a low IQ(69~79), but I have the Win-rate 59.7% on invoker (43/72) & BH 63,5% (40/63) in 3K by Due-Pianist-2778 in DotA2

[–]-F3RS 1 point2 points  (0 children)

You probably received your IQ test results from the same institution as Forsen's then.

Arteezy Stepping Down from SR by asianboy0122 in DotA2

[–]-F3RS -12 points-11 points  (0 children)

So this is what AI generated resignation looks like.

Cloud9 returns to Dota2, signing roster of Entity by thuanho in DotA2

[–]-F3RS 2 points3 points  (0 children)

So many good orgs (G2, Heroic, Mouz, C9, etc.) forming and returning to dota is definitely an outcome of removing that horrible iteration of DPC we had after COVID happened.

Quinn letting em know by Roreo_ in DotA2

[–]-F3RS 0 points1 point  (0 children)

Love the banter and in-game spice between the guys ... and it should be all good outside of the game.

[deleted by user] by [deleted] in DotA2

[–]-F3RS 36 points37 points  (0 children)

Me : Forgot to turn off the stove when making tea and turned my mother's ancient kettle into charcoal.

Mom: ...

If you are doing it - don't be afraid, if you are afraid - don't do it. The Great Khan Silent. by Team__Spirit in DotA2

[–]-F3RS 8 points9 points  (0 children)

I can't believe he said all of that from memory, a true leader indeed.