Scale of the Universe (Flash)

..., Exometers, Petameters, Terameters, . . ., Meters, ...,  Picometers, Femtometers, Attometers, ...

"This is an interactive flash animation that lets you zoom in and out on objects in the universe to get a sense for their relative sizes.  Who knew that a giant earthworm could grow to be 7 meters long!"

How do I get into the 111 lab I want if it is full?

Image by wsh1266 via Flickr

If you are unable to enroll in the course or any lab because the course is full, your only option is to wait until someone drops the course.

Since some students are "shopping for courses" during week 1, you should see spots start to open up at the end of the first week.


If you are already enrolled in the course and a lab, but would like to switch to a different lab that is already full, here's what to do:

Go to the lab you want and ask the GTF if there's room for you. If your GTF says Yes, make sure that s/he has your name removed from your original lab and added to the new one. If the GTF says No, you will have to attend a different lab.

For labs that are full, two names may be added beyond the max on the condition that the added students bring a notebook computer or watch over someone's shoulder on days when the lab is full.

Students actually registered for the lab are guaranteed a workstation if they need one.

The K Computer: PetaScale Computing

The K Computer is the Top500's current (6/11) supercomputer, executing 8.25 quadrillion floating-point operations per second (8.25 PetaFLOPS).

"K" stands for "10-PetaFLOPS" and the machine is almost there.

While the K computer consumes 9.89 MW (think one lightning bolt, or the energy to power 10,000 suburban homes), the computer is relatively efficient and executes 825 MFlops/watt.

Annual power bill: 10 Mega$$.

IBM's BlueGene (eh, Watson?) tops the Green500 list at 1680 MFlops/watt.

The Tilde (~): Unix and URLs

Image via Wikipedia

UNIX

In a Unix pathname, the tilde (~) is an abbreviation for the "path to your home directory".

Example (not using ~): 

/home4/susanQ/public_html/110/ is the Unix path to Susan Queue's 110 folder on shell.uoregon.edu.

Example (using ~): 

~/public_html/110/ is the Unix path to Suzie's folder on shell.uoregon.edu

URLs

In a URL, the tilde (~) has a related but different meaning: it stands for the path to your public_html folder on the web server.

Example: 

http://ix.cs.uoregon.edu/~susanQ/ is the URL that corresponds to the Unix path /home4/susanQ/public_html/

Example: 

http://ix.cs.uoregon.edu/~susanQ/110/ is the URL that corresponds to the Unix path /home4/susanQ/public_html/110/

NYC Mayor Bloomberg Will Learn JavaScript In 2012

Code Year 

"250,108 people have decided to learn to code in 2012. Why not you?"

The mayors of NYC and London are among them:
Mayor Bloomberg Will Learn How To Write Code In 2012

Codeacademy website

Setting Up your Computer for CIS/CIT

• DIY: Set Up your Windows PC
  
  
• DIY: Set Up your Mac
  
  
• DIY: DuckWare CD. Many of the software applications we use in the lab (SSH, FireFox, CyberDuck, ...) are also available on the DuckWare CD (available from the Help Desk, 151 McKenzie), and can be installed on your home computer.