Classics of Literature
- Bartlesby The Scrivener
- Life on the MIssissippi – good depiction of life in the 19th century by Mark Twain – Samuel Clemens
Partition Software
How to resize Windows XP NTFS partition List of disk partitioning software KDE partition editor I ended up resizing the partition I wanted to expand by using KDE partition editor. The following sequence is a history of the effort tried to expand the partition to 250gb from 160gb. the Read more…
Interpretation of Matrix determinant as hyper volume
It is easy to see in the case of a brick that the volume = det(A) = 2 * 3 * 4 Assuming that the b vector is equal in the dimension and conveniently using the same values as the system matrix: Using the results of the Cramers Read more…
Coffee Candy
I do not recommend caffiene. It should be eliminated in any low inflammation diet for purposes of weight loss and to help reduce benign prostate enlargement. That being said this is a creation I have used to keep the headaches away when I am in caffeine withdrawal. coffee brewed and Read more…
Solution of similtaneous linear equations
Multiplying the first column by alters the determinant as follows: Now you can multiply the other columns and add to the first column to your hearts content as it does not alter the determinant due to linear dependency on the other rows. Multiply column 2 by and Read more…
Intuitive Matrix Inverse
Where superscript c denotes the cofactor of the matrix element and is the determinant of A If you evaluate the row=1 , column=1 product of the original matrix with its inverse you see row=1 X column=1 results in: ……( duh! what a setup. elements times cofactors sum to Read more…
Physics
Conversion of Optical Photons into Electrical Photons as might occur in a battery
See previous post on how a battery and electrical condustors work. In that post it describes a process in which a visible light photon is generated inside a battery by the 1.5 volt chemical reaction. I was curious when I wrote that how the optical photon could be converted to an electrical photon. The above diagram gives a possible explanation how that could occur. When you have an optical photon generated inside of an opaque material it can not propagate very far. It forms a region with increased photonic pressure. It is absorbed at some high level excited state of a charge carrier. It then can cascade downwards in the small steps of the conduction band. This allows the energy to propagate along the copper in the form of electrical current.
You can also imagine a solar cell acting in a similar fashion with the source of the optical photon being sunlight instead of chemical energy of the battery.