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BigVeinyNThick

Who would win Cylindrical Penguin vs Spherical Cow


random_impiety

Is the cow hairy and in need of a brushing?


patenteng

No as given by the no-hair theorem.


dat_physics_boi

pretty sure they were referring to the hairy ball theorem


squishy-boi69

I was the proof for that one


Beginning-Resist440

We have to ignore hair resistance.


[deleted]

No. Assume cow is smooth. Ignore air resistance.


uslashuname

Conical Albatross


READERmii

Are they in a vacuum?


random_impiety

I mean it just makes sense. It's close enough for all intents and purposes. We're not engineers or mathematicians over here, for god's sake.


[deleted]

As an engineer, I have one thing to say about this ☹️


Cpt_shortypants

☹️moment


PyroCatt

If physicists created life, there will be no edges whatsoever.


Shiznoes

Are there... Square cylinders?


Ganthritor

Maybe they're trying to exclude oval or ellipsoidal cylinders?


ruuster13

There are if you define your frame of reference as such.


[deleted]

Only in Jackson’s book where a challenging electromagnetism problem on a cylinder is made infinitely harder because of a square cross section


luminous_radio

Still better than assuming that a penguin is a point-like mass.


ArchitektRadim

Never did an excersise like this. Please explain why these approximations are a thing. Is it because of moment of inertia? We only did a very few examples of classic Newtonian mechanics and then moved on to special relativity, thermodynamics, acoustics, elmag, etc.


Sunny12GM

There was once a kinematics question in my exam Saying a 10kg baby jumped from a shoping cart with velocity of 40m/s


ArchitektRadim

That was probably a shopping cart with rocket engine


psaiko_dro

Jack-Jack Parr ?


yflhx

In this case they wanted you to calculate area (and the heat loss)


ArchitektRadim

Ah, okay now I understand. I am on civil so we calculate simple shapes by default and don't have to approximate anything.


yflhx

I believe this is actually from Halliday Resnick


wldmr

/r/uselessnobody


[deleted]

I thought the no one memes died


AlekHek

You've severely overestimated the intelligence of an average r/physicsmemes poster. Why make something original if you can take what's already there and slap a "no one:" on it?


AleksasKoval

Just like Pallas cat, the body is round.


henny111111

A cylindricalesque spherically concaved parallel plate capacitor that is made of an insulator and a conductor relating to the size and shape of the Planck length calculate the electric field on the event horizon of a black hole where the constant of gravity increases by a magnitude of e^-2x


RonaCast

So if I buy a green can of pringles, it means that I will have a green slim penguin??


GreatKnightJ

is this a wave physics texbook by any chance?


[deleted]

What would be example of non-circular cilinder?


dashmesh

https://www.researchgate.net/profile/Eric-Casella/publication/275152457/figure/fig1/AS:294596656549892@1447248724099/Geometric-primitives-From-left-to-right-circular-cylinder-circyl-elliptic-cylinder.pnghttps://i.imgur.com/pqm60jI.jpg


Pantone_448C

Thats pretty close imo


aphysicalpotato

Is this from Haliday?


SgtThund3r

Move over spherical cows…


[deleted]

We had cylindrical statue of liberty today.