Ciro Santilli @cirosantilli  40

This is the first of many love declarations and mentions EMBII makes of his partner Chiharu! This came just one day afte the very first uploads of the system.

More EMBII social media:

bitfossil.org/root/78f0e6de0ce007f4dd4a09085e649d7e354f70bc7da06d697b167f353f115b8e/ in block 273536 (2013-12-07).

This is one of the earliest AtomSea & EMBII uploads.

Often just called collimated light due to the collimator being the main procedure to obtain it.

However, you move very far away from the source, e.g. the Sun, you also get essentially parallel light.

Bibliography:

Subsidiary of Carl Zeiss AG and also part owned by ASML, sole optics vendor of ASML as of 2020.

Exactly 1033 somatic cells on male, 959 on hermaphrodite, every time, counted as of 2020. A beauty.

Exactly 131 commit apoptosis in the hermaphrodite.

www.wormatlas.org/celllineages.html contains the full lineage as some huge and impossible to view images. This image was taken directly from The embryonic cell lineage of the nematode Caenorhabditis elegans where it is split across many pages, it is a thing of beauty on the PDF.

www.wormatlas.org/celllistsulston.htm contains a non-hierarchical table with the cells and their names.

Whole organism simulation of C. elegans.

High level simulation only, no way to get from DNA to worm! :-) Includes:

3D body viewer at: browser.openworm.org/ TODO can you click on a cell to get its name?

If you pass parallel light.

For a biconvex spherical lens, it is given by:where:

We will sometimes just write them without superscript, as it saves typing and is useless.

The principal quantum number thing fully determining energy is only true for the hydrogen emission spectrum for which we can solve the Schrödinger equation explicitly.

For other atoms with more than one electron, the orbital names are just a very good approximation/perturbation, as we don't have an explicit solution. And the internal electrons do change energy levels.

Note however that due to the more complex effect of the Lamb shift from QED, there is actually a very small 2p/2s shift even in hydrogen.

Looking at the energy level of the Schrödinger equation solution for the hydrogen atom, you would guess that for multi-electron atoms that only the principal quantum number would matter, azimuthal quantum number getting filled randomly.

However, orbitals energies for large atoms don't increase in energy like those of hydrogen due to electron-electron interactions.

In particular, the following would not be naively expected:

This rule is only an approximation, there exist exceptions to the Madelung energy ordering rule.

Bibliography: