The science of symmetry - Colm Kelleher

[@raptecclawtooth9046]

The actors are like: "im not enought paid for this"

[@lovesick__791]

Lmao

[@biakchin6702]

LOL!!

[@mdesssi]

XD

[@jonathanmcfoot4563]

fax

[@tomer9952]

He mentioned the mechanical advantages of being symmetrical. But most importantly, if you have a front and back end(head, tail), it is easier for DNA to repeat instructions laterally on both sides of the bilateral line, because, during cell division, it will take much more energy and time to duplicate a longer DNA strand for a non symmetric organism without any errors. As long as DNA can label where the front and back are facing so that arms or legs are not placed backwards, cell growing patterns in embryology become more straightforward. For those reasons, it is an advantageous adaptation because energy conservation can be used towards other adaptations which means greater fitness. It is also important for the outer layer of an organism to be symmetrical along with teeth.

[@kevaran1422]

Having finished biology degree. Bilateral symmetry of mammals is generally external. Once you counted internal organs. The arrangement is not equal left and right.

[@sultanahb5730]

am i the only one who actually enjoyed the video? xD for someone studying for her bio exam for hours i thought this was somewhat enjoyable lol.

[@hellstone9186]

Yea your the only one

[@sultanahb5730]

Bloxy Bloxington i ... wow i don’t even remember this video or this comment. A lot can happen in 4 years. You probably don’t care but i granduated high school and now i’m a first year med student. But anyways, thanks stranger. Your reply made me reflect. :)

[@sultanahb5730]

@@prinishaa1073 Thank you :)

[@Hehe123wowwwww]

How u doing buddy

[@sultanahb5730]

@@Hehe123wowwwww im a senior now ;) thanks for asking!

[@kunairuto]

I think this is my favorite TED narrator.

[@white_shadow_123]

The title should be the biology of symmetry.

[@199NickYT]

Yeah, I was thinking they'd go into physics of rocket ships and such

[@grigorshah]

Nicholas Wright rocket ships are engineering and not physics. Though they use Physics in Engineering. Most importantly the shape is taken from biological objects like the rocket ship is taken from fish and birds etc.

[@Benimation]

there was a bit of mathematics in it.

[@brosplit]

Eh? Biology is science and fall into the sub-category Natural-Science.

[@Danilego]

Yeah I was thinking Noether's Theorem and maybe group theory, but it was mostly Biology

[@TheBenenene10]

Interesting talk, but STOP DANCING DAMNIT!

[@karalyncarlton6151]

I agree

[@jarman9031]

It’s so distracting

[@biakchin6702]

It's so true

[@aleks0_o879]

it looks more like stimming

[@oldcowbb]

expecting more math, turns out it's more like biology

[@doncorleone7580]

When I hear Symmetry I hear: Gurl u getting an A+ on this Test! 😂😂😂

[@ratlinggull2223]

Don Corleone wat

[@ThePhatWabbit]

i thought we were going to get into quantum mechanics

[@JimboJamble]

Foxes and butterflies ain't got nothing on Schrodinger's cat. It isn't just bilaterally symmetrical, it's SUPER symmetrical.

[@cubecraft2198]

Yeah

[@butterskywalker8785]

@@JimboJamble schrödnger's cat kill JFK and didn't at the same time,imprison them

[@anweshthakur2817]

@@butterskywalker8785 yes bro

[@Imi4000]

Those animations were great.

[@theepicsandwichgoc192]

4:40 the way u said "when reminds me of hot rod whiskey scene xD

[@silenteyesamr]

Sorry, i could only think of "Dumb Ways To Die" video.

[@Lucuskane]

Knowledge (singing note) , awesome, how a topic(excerpt) like this just hits you out of nowhere

[@darkrules1]

I remember the episode of cyber chase where they talk about symmetry. You forgot about slide symmetry which mainly implies to long things like fences and combs

[@michikomanalang6733]

“Some Carls don’t exhibit any symmetry at all” I love this accent DEEPLY

[@anweshthakur2817]

It is useful

[@AcidParadox]

That fox is so damn hilarious haha

[@omid4480]

Gotta love his accent

[@plethrons]

The animation of this video is so nice! way better than mine :)

[@kurrizzle]

Genetics are even more important than symmetry in figuring out the tree of life. Similar phenotypic characteristics can pop up in separate places totally on their own. Symmetries are important to understand in phylogeny if there is some sort of discrepancy in genetic lineage, but it is supplementary information, more than anything else, in determining the tree of life. The beginning of the video veered off course into biology rather than sticking to a discussion of symmetries in all subjects, and made conclusions that, although correct, are not thoroughly discussed in respect to all other subjects.

[@aaronfawcett9911]

Awesome animation on this one.

[@talalzahid2241]

Symmetry is not only in biology but it is found in the whole universe. From an atom to the biggest galaxies, all have some kind of symmetry involved and if you are smart enough to visualize this then I am sure you will find symmetry everywhere. Physics is arguably all about symmetry!

[@ShriRameducation13]

Have not you seen the asymmetric creature in the video ? It means asymmetry also exist.

[@kamanashisroy]

I like the idea. But how does the definition of symmetry work with bilateral symmetry ? Is it transformation of reflection or something ? Anyway the definition is new to me and it is intriguing too.

[@jorgealexandre4616]

The transformation is reflection in that case

[@MentalVideographer]

My only issue here is that a lot of those rotationally symmetrical organisms that you said were less related, are also bilaterally symmetric.

[@st0rmbrkr]

My favorite one yet!

[@nasikh_aleilm]

Why Segmented Worms is not Radial symmetry???

[@maxflane1451]

Thank you for this helpful information

[@ThatShyGuyMatt]

Are you bilaterally symmetric if you missing an arm or for example have a deformed eye?

[@cadman2300]

Yes, because you still have the same ancestral genes and morphology that gave you your bilateral symmetry. And even if you were born with such deformities you're still the offspring of your respective group. That's taxonomy in a nutshell.

[@Tyler_Lalonde-]

yes and no. to the universe you would be but to someone you wouldn't be. since we prefer symmetrical faces and bodies.

[@TranscendentLion]

Remember that the bilateral symmetry is only approximate. Even if you have everything intact, you'll still have spots, scars or other features on one side of your body that aren't present on the other.

[@SKUMARIIII]

what is difference between radial and biradial symmetry ?

[@Limbomber]

Well isnt this explanation wrong according to set theory since only rotation by 360 or 0 degrees is considered an identity under the triangle symmetry group.

[@HienNguyenHMN]

I know some people HATE it when others say this about them, but: I love his accent. :)

[@ioannalygerou8207]

( What's with the dancing? xD ) Great video!

[@JWentu]

may I suggest to read some Richard Dawkins' book to understand why we are bilateral and no, say, 90° rotational symmetric...; basically it's a matter of economy. it's better , as a fish, to differentiate a head from a tail (like they said in the video), it's good also to differentiate an top part from a bottom part (this simmetry is broken by gravity that pulls in the vertical direction) but there would be no gain in differentiating left from right... therefore evolution lead to an economy by having left and right look the same.

[@SiddhaswarupanandaPal]

nice explanation

[@MegaMGstudios]

this should be a real stage play

[@jordanweir7187]

besides,ofc, from the huge amount of symmetry in physics xD

[@AnantMall]

Am i the only one who was reminded of silence of the lambs by the thumbnail ?

[@jordanrhodes395]

Poor Triangle!

[@TheAncientColossus]

The title should be "Symmetry and Evolution of Humans."

[@sochivydy7479]

The animations are so cute!

[@musamahmut6040]

Thanks I understood well 👍🏻

[@profanelogistics]

Great video on symmetry

[@rihanbabu7710]

what are the function of biletral symmetry plzz answer me fast

[@xoran4863]

How did they get a tree in the schoolplay? Was it dropped through the roof?

[@MsSBVideos]

+Thomas stampe Brock It's probably a cardboard cutout or a wall mural with real branches sticking out of it that were glued there.

[@karalyncarlton6151]

the title should be dancing symmetry

[@arvindian]

very nice animation!!!

[@Yourhighnessnona]

This is so adorable

[@Zluka_iz_luka]

The animation of this motley crew looks funny.

[@SB-oh4dx]

*Eats my symmetry Me:I hate symmetry

[@TheMazungo]

Can I get this guy to narrate my biography?

[@lerizmor5858]

You need to have a really interesting biography dude...

[@TheMazungo]

One time I removed a "Do Not Remove" sticker from a mattress and was never caught.

[@lerizmor5858]

Colt Engineer You gotta make a movie about that.

Colt Engineer You haven't been caught yet.

[@santiago24601]

i'd totally watch that play

[@olive5671]

deja vu

[@jpbiswas3060]

This video doesn't mention biradial symmetry.

[@littledemonbunnies]

How dare you do that to that poor triangle

[@reckzybros3874]

Who else is watching this because of online school

[@terrirensch5135]

me

[@whatabouttheearth]

All life on earth started in the oceans with an offset in gravitational pull from Spring Tides (FULL/DARK MOON) to Neap Tide (QUARTER MOONS) so it would of began there. ALL life on earth is related and came from shared ancestory in the ocean.

[@Jacqueline0221]

This so reminded me of death the kid from soul eater

[@BaBooTubeVideos]

Poor Colm Kelleher. Everyone is hating on his TED talk.

[@TranscendentLion]

What's super-symmetry?

[@DarklightSpirit]

Google is your friend

[@alymeriz9562]

With this video I felt like a little girl at the school

[@samanthafurnish1809]

Kid loves this video!

[@kusumkumawat7168]

Group theory 💀

[@nazifaanjumaumee3371]

Am I the only one who expected biology more than geometry here?

[@TheRaysteve]

great video. learnt alot

[@officialbrownie7930]

everyone is dancing but there so bad XD

[@Mega2Sakaura]

I still don't get how symmetry is a product of evolution..?

[@Benimation]

It's quite easy to get actually. When there's already genes for one half, the other can easily be derived from it.

[@Benimation]

Raul Pinto symmetry arose before there were animals. It's perfectly normal for a species consisting of very few cells to do this. Once the genes were set up to be used multiple times, any change to it affected both sides. If it wasn't useful, it could disappear. If it was, it stayed. It's not ridiculous, you just don't seem to like it.

[@superpupy7]

It's safe too say Death The Kid would have a heart attack seeing that coral and not being able to fix it somehow.

[@mingaloo3]

so like how humans have two ears, two arms, two legs, two feet?

[@poiuytrew09876]

Their bodies are not really designed for something, you know (3'31)

[@benjujurojas8256]

What kind of music are those animals dancing? Lol

[@TobleroneChic]

IRISH ACCENTS

[@David_ne]

Peek into the crystal ball: Binance CEO’s exclusive interview about future developments

[@keerthi1346]

"It's called a head."

[@kerocr1nge_editx]

Who else is here for school? :P

[@yandere_chainsaw1060]

Death the kid needs to watch this video

[@MrAwsome1337]

Ahaha, those animations. Does anybody know why mathematicians have such a developed interests in symtrestrys? Especially in regards to really abstract things?

[@ericreymarin]

And to top things off....where's my car...

[@joseee4089]

Nice observation Sherlock...

[@winnerd6772]

Why everyone is dancing 😁

[@tvieno]

What in heck is that shark doing at 4:38?

[@DJcMugaba]

Am I the only one who noticed that it is left shark?

[@th3ist]

the logic of biologists attempting to apply symmetry to an evolutionary tree of life makes them sound crazier than conspiracy theorists. It's quite appropriate that this video explains its science on a stage in a theater. A place where all works of fiction can call home

[@chopsticks8204]

Thats an interesting accent!

[@ehatipo4598]

Thank you

[@namyaarora3515]

My teacher sent me this smh

[@TheChurchHistoryChannel]

Where did they dig this cultchie up from? Hahahahaha!

[@jessicasthul6774]

Was expecting some mathematics 🤔

[@donteventryto]

amazing!!

[@z-e-r-o-]

アニメが最高w The animation is awesome!

[@ferdyhoshigakitube]

am not sure about his accent. scotland? nah Indian?

[@cebuzubu2191]

im scard of the volcano

[@goddess356]

I still don't get why it's important ..

[@lou9571]

Why do i think the speaker is Irish ? Maybe it's the accent. Did anyone else feel that ?

[@timliu-fi4zf]

they should talk about physics instead, which is much more closely related to symmetry

[@SaiedAttala]

Stop dancing please :D

[@jalalsedra1157]

Cool video

[@anweshthakur2817]

Bhai mutna hai kya jo itna jaldi jaldi bakta chala jaa raha hai😶

[@enzoozne15]

illuminati confirmed

[@Laura-d4Laura___8y]

Refunding cash: steps and instructions

[@RawanLaz]

I didn't understand most of the video :(

[@aakanshabisht525]

Good sir