Sunday, December 7, 2008

Phase Change and Ultramarine

FOG NUMBERS
from Carl Sandburg's Honey and Salt
Birth is the starting point of passion.
Passion is the beginning of death.
How can you turn back from birth?
How can you say no to passion?
How can you bid death hold off?
And if thoughts come and hold you
And if dreams step in and shake your bones
What can you do but take them and make them
______more of your own?
______Of course, a nickel is a nickel,
______and a dime is a dime--sure--
______we learned that--
______why mention it now?
______of course, steel is steel;
______and a hammer is a hammer;
And a thought, a dream, is more than a name,
______a number, a fixed point.

Walk in a midnight fog now and say to it: Tell
______me your number and I'll tell mine.
Salute one morning sun falling on a river ribbon
______of mist and tell it: My number is such-and-
______such--what's yours?

Of what is fog the starting point?
Of what is the red sun the beginning?
Long ago--as now--little men and women knew in
______their bones the singing and the aching of
______these stumbling questions.

6 comments:

Σφιγξ said...

"Silver, gold and copper have similar electron configurations, but we perceive them as having quite distinct colors. Electrons absorb energy from incident light, and are excited from lower energy levels to higher, vacant energy levels. The excited electrons can then return to the lower energies and emit the difference of energy as a photon.

If an energy level (like the 3d band) holds many more electrons (than other energy levels) then the excitation of electrons from this highly occupied level to above the Fermi level will become quite important. Gold fulfills all the requirements for an intense absorption of light with energy of 2.3 eV (from the 3d band to above the Fermi level). The color we see is yellow, as the corresponding wavelengths are re-emitted. Copper has a strong absorption at a slightly lower energy, with orange being most strongly absorbed and re-emitted. In silver, the absorption peak lies in the ultraviolet region, at about 4 eV. As a result, silver maintains high reflectivity evenly across the visible spectrum, and we see it as a pure white. The lower energies (which in this case contain energies corresponding to the entire visible spectrum of color) are equally absorbed and re-emitted."

http://www.webexhibits.org/causesofcolor/9.html

https://blogs.unimelb.edu.au/sciencecommunication/2017/08/11/osmium-76os-a-noble-metal-in-character-but-with-beastly-properties-and-a-heart-of-gold/

Σφιγξ said...

https://www.masterorganicchemistry.com/2011/07/01/reagent-friday-oso4-osmium-tetroxide/

Σφιγξ said...

4d block transition metals deserve further investigation. Thank you, for reminding me of silver's place here, with equine bottom half and tennis player of 23 (2007). "Silently" remains a personal favorite.

https://www.api.simply.science/images/content/chemistry/metals_and_non_metals/transition_metals/conceptmap/4d_series.html

Exercise 89 will go here.

I don't know what to think of Kaku's independent effort of Adult Baby (2019).

https://www.youtube.com/watch?v=g03oGK3CnGc

Σφιγξ said...

https://books.google.com/books?id=quKbF6JjlYgC&lpg=PA158&dq=%C2%AB%20les%20sept%20arts%20endoctrin%C3%A9s%20%C2%BB&pg=PA159#v=onepage&q=%C2%AB%20les%20sept%20arts%20endoctrin%C3%A9s%20%C2%BB&f=false

https://m.youtube.com/watch?v=Vs_sURGuYys

https://drive.google.com/file/d/1kJ4W4ay2RS44De65G22ms3xLrY94WGlW/view?usp=drivesdk

Σφιγξ said...

https://www.theparisreview.org/blog/2015/06/08/true-blue/

Σφιγξ said...

Late entry. Exercise 89. Thank you, for reminding me.

https://1drv.ms/i/s!AsA4BY25Ql_1mXr1Fm17KsV3pCiR