Thursday, July 17, 2008

How Computers boot up

This extensive 3-part post focuses on the linux booting process, from motherboard & chipset to the bootloader & kernel booting process.
clipped from duartes.org

Motherboard Chipsets and the Memory Map

To start off let’s take a look at how an Intel computer is wired up nowadays. The diagram below shows the main components in a motherboard and dubious color taste:

Diagram for modern motherboard
clipped from duartes.org

How Computers Boot Up

Boot Sequence Outline
Master Boot Record
clipped from duartes.org

The Kernel Boot Process

RAM contents after boot loader runs
Architecture-specific Linux Kernel Initialization
Architecture-independent Linux Kernel Initialization
Windows Kernel Initialization
 blog it

Sunday, July 13, 2008

Top 100 Liberal Arts Professors' Blogs

Academics are flocking to the Internet like never before, particularly to start a blog. Faculty members in colleges across the world are connecting with people on a whole new level. Let's face it – academia can actually be very lonely at times. Not only can a blog be cathartic for professors, it can allow for valuable feedback from students and/or colleagues.


Liberal arts subjects are wildly varied. From art to science, the major disciplines have long been considered part of the liberal arts. Below are 100 of the most interesting and popular blogs written by liberal arts professors.

Art
Economics
Education
English
History
Math
Media / Technology
Music
Philosophy
Psycholog
Political science
Science
Sociology
Theology
 blog it

Quick, free, online photo re-sizer

Quickly changes photo dimensions or file size to optimize photos in seconds for your blog or application. Because it's so simple, I use this sooner or later every week. No registration, no software download.
clipped from www.webresizer.com
Web Resizer - Make photos faster. Digital camera and a picture of girl with photo cropping tool shown.

This free online image
Web Resizer
helps you optimize photos for web or email.
Easy to use. Amazing results!

Before


Before picture

size: 35.73KB

After


After picture

size: 13.48KB (62% smaller)

Plus the image is sharper




  • reduce image size

  • crop photos

  • sharpen

  • resize - change width and height

  • rotate

  • adjust contrast, brightness, saturation

  • convert photo to black and white

  • add a border

  • no registration required

  • free!



Resize photos now
 blog it

Friday, July 11, 2008

The Future of Energy: Solar Power

New solar arrays from SolFocus generate more power than conventional solar panels but use just one-thousandth as much expensive semiconductor material.
The arrays' curved mirrors focus sunlight onto one-square-centimeter solar cells, concentrating the light 500 times and improving the cells' efficiency.
SolFocus's first power-producing installation will be generating 500 kilowatts of electricity by the end of the summer.
The company expects that by 2010, electricity from its arrays will be about as cheap as electricity from conventional sources.
 blog it

Duckweed - Very Promising

Its greatest potential, however, could lie in becoming a source of biomass for alternative fuel production. Because individual organisms generate new biomass at a rate faster than any other known flowering plant, duckweed could also do in a pinch as a ready source of high-protein feed for farm animals.
clipped from www.treehugger.com
common duckweed

Though it may be a bit premature to heap too much praise upon duckweed (Spirodela polyrhiza) -- after all, relatively little is still known about its properties -- the early signs, at least according to a team of Rutgers scientists, seem very promising. A team of plant biologists from Rutgers' Waksman Institute of Microbiology have convinced the DOE to focus resources on the genomic sequencing of the diminutive aquatic plant, claiming it holds immeasurable potential for feeding the planet and fighting both pollution and climate change.

Duckweed: a pollution fighting source of food and biofuel
So what potential benefits could a better understanding of duckweed's genome yield? Scientists already know that duckweed can extract excess nitrates and phosphates from agricultural and municipal runoff, slow algal growth (thus putting a damper on eutrophication) and degrade toxic chemicals -- among other pollution-fighting functions.

 blog it

Thursday, July 10, 2008

Boston Legal's Depiction of the Supreme Court...

Was right on target. When I first saw this clip, I couldn't believe how wonderful it would be if this was not fiction. Well, it seems the Supreme Court may not be as politically polarized as I thought but just one more Republican justice and it will be. When that happens a case like this will only be a fairytale. I can't embed it any longer but you can view it here: http://www.youtube.com/watch?v=PqlGoxfAkuU

See John Stewart's hilarious view of Scalia and the Supreme Court. Click Here: http://www.crooksandliars.com/2008/04/30/daily-show%20-the-loveable-and-charming-antonin-scalia/
clipped from www.youtube.com
Supreme Court Fictionalized Dramatization
UPDATE: SUPREME COURT REJECTS THE IDEA OF DEATH FOR RAPE OF A
CHILD:
WASHINGTON - Proponents and opponents of imposing the death penalty
for rape of a child underwent intense questioning Wednesday from a seemingly
divided Supreme Court.

The hour-long argument came in the case of inmate
Patrick Kennedy, sentenced to death for raping his 8-year-old stepdaughter.


Kennedy's lawyer, Jeffrey L. Fisher, told the court the death penalty
for child rape under Louisiana law violates the Eighth Amendment protection
against cruel and unusual punishment.
More here:
msnbc.msn.com/id/24155465/

This is a short video clip that shows how the
Supreme Court has become partisan during the long reign of the Republican Party.
If only this depiction could be reality,
But alas, it can never be, as long as we have the Limbaughs, the Coulters and
the radical, religious wing of the Republican Party. Too bad, too sad!
 blog it

Wednesday, July 9, 2008

A War on Science (BBC 2006)

clipped from video.google.com
 blog it

The Illusion of Reality

Science from the BBC.
Last episode in the ATOM series 2007
clipped from video.google.com
 blog it

23 Go To Resources for Finding Great Code

These 23 websites are for those times. All are excellent resources and all are about sharing tips and tricks and making code freely available in a variety of different programming languages.
 blog it