Here goes… I am not a college educated man, I am however a plant nerd to the 10th power.
I see the flower of life in this image and mentally think of cosmology in terms of a three dimensional flower of life construct. I'm curious as to why images of big bang are shown expanding as a bottle, and not as a spherical expansion ? I'd appreciate any of your thoughts on this, I also don't want to take up your time .
Hello, thanks for reading my newsletter. As a newcomer to Substack, I’m deeply honored. About your question: the expansion of the Universe was most certanly spherical, that’s why we can say the Universe is both homogeneous (i.e. its average density is the same everywhere), and isotropic (i.e. it looks the same in all directions). The reason why the Big Bang is often depicted as a ‘bottle’ is that’s a timeline of the expansion; in other words the so-called bottle represents the evolution of the Universe from a singularity (that is a point-like object of almost infinite mass), to its present enormous size (more than 14 billion years later.) Alessandra
Okay…..
This is interesting.
Here goes… I am not a college educated man, I am however a plant nerd to the 10th power.
I see the flower of life in this image and mentally think of cosmology in terms of a three dimensional flower of life construct. I'm curious as to why images of big bang are shown expanding as a bottle, and not as a spherical expansion ? I'd appreciate any of your thoughts on this, I also don't want to take up your time .
Thanks, j.
Hello, thanks for reading my newsletter. As a newcomer to Substack, I’m deeply honored. About your question: the expansion of the Universe was most certanly spherical, that’s why we can say the Universe is both homogeneous (i.e. its average density is the same everywhere), and isotropic (i.e. it looks the same in all directions). The reason why the Big Bang is often depicted as a ‘bottle’ is that’s a timeline of the expansion; in other words the so-called bottle represents the evolution of the Universe from a singularity (that is a point-like object of almost infinite mass), to its present enormous size (more than 14 billion years later.) Alessandra
Thank you.