String Theory By Brian greene in 3 Minutes

imagine I have a beautiful tree that's

filled with oranges and I asked myself

what is the orange made of how do I

answer that question well I want to look

deeply inside the orange so I magnify it

and I magnify it again and if I keep on

doing it

deep inside sooner or later I begin to

see molecules come into view

but molecules are not the end of the

story because the molecules I can

enlarge them and if I make them big

enough deep inside I begin to see atoms

atoms are not the end of the story too

because we have electrons zooming around

the nucleus deep inside mostly empty

space in the atom but deep inside we see

the nucleus so if I grab that and

magnify it I see that the nucleus is

itself made of particles neutrons and

protons and if I grab one of the

neutrons and magnify it

I find yet further particles little tiny

quarks inside now that is where the

conventional idea stopped strength

Theory comes along and suggests that

inside these particles there is

something else so if I take a little

quark and I magnify it conventional idea

says there's nothing inside but string

theory says I'll find a little tiny

filament a little filament of energy a

little string like filament and just

like the string on a violin I pluck it

and it vibrates creates a little musical

note that I can hear the little strings

in string theory when they vibrate they

don't produce musical notes they produce

the particles themselves

so what quark is nothing but a string

vibrating in one pattern an electron is

nothing but a string vibrating in a

different pattern a neutrino nothing but

a string vibrating and a different

pattern still so if I take all of this

back together

I have my ordinary orange and if these

ideas are right they are speculative but

if they are right deep inside the orange

or any other piece of matter there's

nothing but a dancing vibrating cosmic

symphony of strings that's the basic

idea of string theory

credits  World Science Festival YouTube Channel👇

https://youtu.be/TI6sY0kCPpk