Archive for March, 2010

Network with Hostnames easily on Ubuntu (from the forums)

Tuesday, March 30th, 2010
Let me start with a little background info. I manage a computer lab with 85 workstations. I ocassionally use either RDP or VNC to do some maintenance. I have no problem doing this from windows, but I wanted my lonely Ubuntu workstation to be able to do the same thing. After about a week of research I am finally able to ping my windows workstations via their Netbios names. Woohoo!!

All you have to do is:

edit /etc/nsswitch.conf

change the line that says

Quote:
hosts: files dns

to this:

Quote:
hosts: files wins dns

(order does matter)

finally, you need to install winbind

Code:
sudo apt-get install winbind

that’s all that it took for me.

now ping <hostname> works great. And I can finally use the built-in terminal server client with hostnames instead of IP addresses.

@javiwwweb, you are magical.

Posted via web from jerwilkins’s posterous

Solar-powered contact lenses for augmented reality?

Wednesday, March 24th, 2010
The technology would embed hundreds of semitransparent LEDs onto a thin lens, letting wearers experience augmented reality right through their eyes. And the applications – from health monitoring to just plain bionic sight – could be endless.

Diagram of solar powered contact lens

A bit on the vaporware side, but a cool concept :)

Posted via web from jerwilkins’s posterous

Quantum state induced in largest object to date (by factor of billions)

Wednesday, March 24th, 2010

“We know perfectly well that things are not in two places at the same time in our everyday experience, but this fundamental theory of physics says that they can be,” he told BBC News.

Now, Professor Cleland and his team have moved that dividing line, using an object just big enough to be seen with the naked eye.

Posted via web from jerwilkins’s posterous

Precursors of “Life-Enabling” molecules discovered in Orion Nebula

Wednesday, March 24th, 2010
A characteristic feature of the Orion spectrum is the spectral richness: among the molecules that can be identified in this spectrum are water, carbon monoxide, formaldehyde, methanol, dimethyl ether, hydrogen cyanide, sulfur oxide, sulfur dioxide and their isotope analogues. It is expected that new organic molecules will also be identified.

Neato results from the Herschel Space Observatory. See article for further details.

Posted via web from jerwilkins’s posterous

Mammalian regeneration demonstrated

Wednesday, March 17th, 2010
In a report published in the Proceedings of the National Academy of Sciences, researchers from The Wistar Institute demonstrate that mice that lack the p21 gene gain the ability to regenerate lost or damaged tissue.

The flip side is that the p21 gene–like the tonsils–gives rise to conscious experience. These mice may look happy, but they’re dead inside.

Posted via web from jerwilkins’s posterous

Keep system clock current in Ubuntu

Monday, March 15th, 2010
  • #1 Selecting System>Administration>Time&Date OR at the CLI enter “time-admin”
    #2 enter your password
    #3 In the resulting configuration drop-down box select “Keep Synchronized w/Internet Servers” in lieu of “Manual”
    #4 Press the install button to install the alternate /etc/ntp.conf download package.
    #5 Confirm your NTP server by double-clicking the “Select Server” button. On Feisty the Ubuntu server is set by default and should be enough for the desktop.

  • Posted via web from jerwilkins’s posterous

    What does an IDE look like without files? Awesome, actually. Video of Code Bubbles in action.

    Thursday, March 11th, 2010

    Code Bubbles is a software project at Brown that aims–in the spirit of Squeak for Smalltalk–to engage development at a code-fragment level. Intensely interesting project.

    Posted via web from jerwilkins’s posterous

    How our microbial passengers could influence our behavior

    Tuesday, March 9th, 2010

    Although the total mass of our microbes is just a few pounds, the tiny size of their cells means that we each carry about 100 trillion microbes–outnumbering our own cells by more than ten to one.

    Karl Zimmer is one of the best science journalists writing today.

    Posted via web from jerwilkins’s posterous

    Could the Mono Lake arsenic prove there is a shadow biosphere?

    Saturday, March 6th, 2010

    Do alien life forms exist in a Californian lake? Could there be a shadow biosphere? One scientist is trying to find out

    California, USA --- Rock Formations in Mono Lake

    to not show photographer information –>

    The discovery of so-called weird organisms (on Earth) would be a feather in the cap for folks who expect a universe rife with life. Also delightful to think that our own planet remains so mysterious.

    Posted via web from jerwilkins’s posterous

    Etymology of Universe: “turned into one”–unus (one); versus (turned into)

    Thursday, March 4th, 2010
    universe Look up universe at Dictionary.com
    1589, “the whole world, cosmos,” from O.Fr. univers (12c.), from L. universum “the universe,” noun use of neut. of adj. universus “all together,” lit. “turned into one,” from unus “one” (see one) + versus, pp. of vertere “to turn” (see versus). Properly a loan-translation of Gk. to holon “the universe,” noun use of neut. of adj. holos “whole” (see safe (adj.)).

    Halp! Our language is naked!

    Posted via web from jerwilkins’s posterous