The Scale of Everything - The Big, the Small and the Planck
And something to think about in the passing of Dalenn/Mira.
Where are we in the Universe?
if i wanted to build a custom ortholinear keyboard…..where can I find cute keycaps for it
[ Frontière de Planck ]
Roman graphique “ Un château dans les nuages “
De leeftijd van het heelal is 13,77 miljard jaar
Temperatuursvariaties in de CMB. Dit stuk van de hemel is 25° groot (50 keer de diameter van de maan), in werkelijkheid een gebied van 20 miljard lichtjaar breed. Credit: ACT Collaboration
Een team van sterrenkundigen heeft gebruikmakend van de Atacama Cosmology Telescope (ACT) in de Atacama woestijn in Chili de leeftijd van het heelal vast kunnen stellen op 13,77 miljard jaar, met een…
“PLANCK” is a work in progress perfomance study about photons and the reason why we are able to see our bodies. A correlative existence.
Imma name my kids after satellites lmao￼
Math Youtubers are collaborating on shairing their “megafav numbers” (favorite number over 1 million), and I wanted to participate.
My megafav number is 4.65 x 10¹⁸⁵, which is the estimated Planck volume of the observable universe.
Please share with your mega fav number and why. Or better yet, if you make content on YouTube: make a video about it and drop the link for everyone else!
/*add stamp when I get home from work*/
BAAUER : PLANCK
Magnetic Streamlines of the Milky Way
Let’s have a look on some fundamental scales - it is fascinating how you can get to the borders of physical knowledge with some easy calculations!
Firstly we look at Heisenberg’s uncertainty relation. It tells us that you can not measure distance and impulse arbitrarily exact. Usually it is even taken for granted that there is no exact distance and impulse for a regarded particle. Now we have a look on the uncertainty in distance:
Another extreme that we can imagine is the highest velocity, the speed of light that gives us the maximal impulse possible for a mass m:
A further limit of empirical knowledge is the Schwarzschild radius (with G, the gravitational constant):
Putting both equations together - the Schwarzschild radius and the smallest distance finally gives us the Planck mass:
Using the value of the Planck mass und putting it in the equation for the Schwarzschild radius or the smallest distance gives us the anticipated Planck length which is the smallest length making any sense according to causal relations in the physical world:
And furthermore we get the smallest time interval possible in our universe:
Now you know how to derive some of the fundamental scales of our universe - there was no need to use any heavy math skills. Nice to see that fundamental observations sometimes follow from “easy” thoughts.