[Discuss] OT Volunteering for School Presentations

2012-10-23 Thread Mark Woodward 
I just did a presentation at my daughters 1st grade class. It was about 
my career in computer science and technology. I brought the robot, 
because lets face it, all performances are improved by props.


The kids were REALLY excited about it. Most questions were kiddish, of 
course, but there were a few that showed real curiosity and innate 
talent. One parent emailed and said her daughter was talking about 
robots all night. One teacher asked why it said "Linux" on the side.


It occurred to me that one of the missions of BLU is advocacy. While 
open source and free software won't have the resources of the likes of 
Microsoft or Apple, it does have people that know how to do things.


Kids at school need to see that math is cool and that science is fun. 
The problem, IMHO, is that math and science are taught from a maths or 
science perspective which is kind of dry. If presented from an 
engineering perspective, it could be made a lot more fun. And for those 
purists out there, remember, we had steam locomotives before a full 
understanding of thermodynamics.


I have a 21 year old who is a senior in college, and a 7 year old who is 
in first grade. I'm not knocking teachers here, but there is a real need 
to add substance to their lessons.  Doing some cool things and bringing 
them to the schools for the kids will help our communities.

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Re: [Discuss] OT Volunteering for School Presentations

2012-10-23 Thread Drew Van Zandt 
It may be possible to involve the Artisan's Asylum in some school programs,
especially if you have some organizational energy to help out with it.
 We're down for it, just most of those who are the volunteering sort are
already oversubscribed.

*
Drew Van Zandt
Artisan's Asylum Craft Lead, Electronics & Robotics
Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld)
Domain Coordinator, MA-003-D.  Masquerade aVST
*



On Tue, Oct 23, 2012 at 8:05 AM, Mark Woodward  wrote:

> I just did a presentation at my daughters 1st grade class. It was about my
> career in computer science and technology. I brought the robot, because
> lets face it, all performances are improved by props.
>
> The kids were REALLY excited about it. Most questions were kiddish, of
> course, but there were a few that showed real curiosity and innate talent.
> One parent emailed and said her daughter was talking about robots all
> night. One teacher asked why it said "Linux" on the side.
>
> It occurred to me that one of the missions of BLU is advocacy. While open
> source and free software won't have the resources of the likes of Microsoft
> or Apple, it does have people that know how to do things.
>
> Kids at school need to see that math is cool and that science is fun. The
> problem, IMHO, is that math and science are taught from a maths or science
> perspective which is kind of dry. If presented from an engineering
> perspective, it could be made a lot more fun. And for those purists out
> there, remember, we had steam locomotives before a full understanding of
> thermodynamics.
>
> I have a 21 year old who is a senior in college, and a 7 year old who is
> in first grade. I'm not knocking teachers here, but there is a real need to
> add substance to their lessons.  Doing some cool things and bringing them
> to the schools for the kids will help our communities.
> __**_
> Discuss mailing list
> Discuss@blu.org
> http://lists.blu.org/mailman/**listinfo/discuss
>
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Re: [Discuss] OT Volunteering for School Presentations

2012-10-23 Thread Daniel Barrett 

I did two 20-minute presentations for my daughter's elementary school class
on computer programming. They have a "Science And Engineering Week" where
parents are encouraged to come into class and make presentations.

In the first one, I explained zeroes and ones (calling them
"lightswitches"), how they are stored in RAM (rows of lightswitches), how
certain sequences of 0&1 represent instructions (like a secret code), and
how the CPU is just a dumb lightswitch-flipper. At the end, they wrote
their names in binary.

In the second, I demonstrated the Logo programming language and drew some
spirograph-like pictures.  In one magic moment, one of the children deduced
the need for loops ("Instead of writing the same instruction 10 times, can
you just say, 'Do this ten times'?") In third grade!

It was really fun and the kids loved it.

--
Dan Barrett
dbarr...@blazemonger.com


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Re: [Discuss] OT Volunteering for School Presentations

2012-10-23 Thread Ben Eisenbraun 
On Tue, Oct 23, 2012 at 12:15:08PM -0400, Daniel Barrett wrote:
> 
> In the second, I demonstrated the Logo programming language and drew some
> spirograph-like pictures.  In one magic moment, one of the children deduced
> the need for loops ("Instead of writing the same instruction 10 times, can
> you just say, 'Do this ten times'?") In third grade!

Somewhat apropos of kids and programming, I read this essay last night:
 
http://worrydream.com/LearnableProgramming/

It has some pretty cool examples for how we could make programming more
approachable and easier to learn.

-ben

p.s.: random sig grabber strikes again.

--
it is a miracle that curiosity survives formal education.

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[Discuss] free up space on a RedHat RHEL 5 system

2012-10-23 Thread John Malloy 
Does anyone have suggestions on how to free up space   on a RedHat  RHEL 5
system?


It is an   ext3  file system

It's  root partition is totally (100%) full


/var   is on a separate partition.


I cannot seem to locate any unnecessary file to delete.


Any ideas?


Thanks!



John Malloy
jomal...@gmail.com
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Re: [Discuss] free up space on a RedHat RHEL 5 system

2012-10-23 Thread Dan Ritter 
On Tue, Oct 23, 2012 at 02:12:03PM -0400, John Malloy wrote:
> Does anyone have suggestions on how to free up space   on a RedHat  RHEL 5
> system?
> 
> 
> It is an   ext3  file system
> 
> It's  root partition is totally (100%) full
> 
> 
> /var   is on a separate partition.
> 
> 
> I cannot seem to locate any unnecessary file to delete.

Do you have free space on another disk? Can you add one,
temporarily, via USB or otherwise?

-dsr-
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Re: [Discuss] free up space on a RedHat RHEL 5 system

2012-10-23 Thread Tim Lyons 
On Tue, 23 Oct 2012 14:12:03 -0400
John Malloy  wrote:

login as root
cd /
run du --max-depth=1 -x -h .
Look for the biggest user of space and cd into that directory
(e.g. /home)
run the "du" command above again, 

Should point you in the right direction.


--Tim




> Does anyone have suggestions on how to free up space   on a RedHat
> RHEL 5 system?
> 
> 
> It is an   ext3  file system
> 
> It's  root partition is totally (100%) full
> 
> 
> /var   is on a separate partition.
> 
> 
> I cannot seem to locate any unnecessary file to delete.
> 
> 
> Any ideas?
> 
> 
> Thanks!
> 
> 
> 
> John Malloy
> jomal...@gmail.com
> ___
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> Discuss@blu.org
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> 


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Re: [Discuss] free up space on a RedHat RHEL 5 system

2012-10-23 Thread Scott Ehrlich 
On Tue, Oct 23, 2012 at 2:18 PM, Dan Ritter  wrote:
> On Tue, Oct 23, 2012 at 02:12:03PM -0400, John Malloy wrote:
>> Does anyone have suggestions on how to free up space   on a RedHat  RHEL 5
>> system?
>>
>>
>> It is an   ext3  file system
>>
>> It's  root partition is totally (100%) full
>>
>>
>> /var   is on a separate partition.
>>
>>
>> I cannot seem to locate any unnecessary file to delete.
>
> Do you have free space on another disk? Can you add one,
> temporarily, via USB or otherwise?
>
> -dsr-
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A review of ls -la / shows nothing special?

Is /home also part of /?   If so, might there be unwanted files in
someone's directory?

What about system permissions?Might one or more files have been
written to places they should not have?

What does a du -h / show?

How about df -h?

Scott
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Re: [Discuss] free up space on a RedHat RHEL 5 system

2012-10-23 Thread David Rosenstrauch 
+1 on what Tim said to identify the folder tree that's hogging the most 
disk (e.g., /home).  Next step then would be to take the culprit, move 
it to a different disk, and tell fstab to mount it at boot.


HTH,

DR

On 10/23/2012 02:24 PM, Tim Lyons wrote:

On Tue, 23 Oct 2012 14:12:03 -0400
John Malloy  wrote:

login as root
cd /
run du --max-depth=1 -x -h .
Look for the biggest user of space and cd into that directory
(e.g. /home)
run the "du" command above again,

Should point you in the right direction.


--Tim





Does anyone have suggestions on how to free up space   on a RedHat
RHEL 5 system?


It is an   ext3  file system

It's  root partition is totally (100%) full


/var   is on a separate partition.


I cannot seem to locate any unnecessary file to delete.


Any ideas?


Thanks!



John Malloy
jomal...@gmail.com
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Re: [Discuss] free up space on a RedHat RHEL 5 system

2012-10-23 Thread Mick Timony - Verizon 
Some tips for freeing up space:
1. Remove older unused kernels and related source files and header files.
2. Remove unused or unnecessary packages.
3. Clean up /tmp (if it's mounted under /) a reboot should do the trick.

If /boot is mounted under / and you've upgraded kernels over the years then
you should be able to free up a few hundred megabytes by removing unused
older kernels (at least this is what happens on my Debian based boxes). As
a fail-safe I always keep at least 2 kernels in /boot, the latest and the
previous known working kernel.

Also /usr/src may have kernel sources and/or header files for older kernels
that you no longer need and you should be able to remove those also. Just
make sure to use the package manager to remove any older kernels and kernel
sources or header files.

To find packages on  Red Hat system and sort them size the following should
work:
rpm -qa --queryformat="%{NAME} %{SIZE}\n" | sort -k 2 -n

The hard is trying to figure which packages to remove. If this is server
and you normally use the command line then remove any X based and just ssh
in, if it's a desktop then removing games can often free up a lot of space.

As Scott said, what does "dh -h" show?

On Tue, Oct 23, 2012 at 2:24 PM, Scott Ehrlich  wrote:

> On Tue, Oct 23, 2012 at 2:18 PM, Dan Ritter  wrote:
> > On Tue, Oct 23, 2012 at 02:12:03PM -0400, John Malloy wrote:
> >> Does anyone have suggestions on how to free up space   on a RedHat
>  RHEL 5
> >> system?
> >>
> >>
> >> It is an   ext3  file system
> >>
> >> It's  root partition is totally (100%) full
> >>
> >>
> >> /var   is on a separate partition.
> >>
> >>
> >> I cannot seem to locate any unnecessary file to delete.
> >
> > Do you have free space on another disk? Can you add one,
> > temporarily, via USB or otherwise?
> >
> > -dsr-
> > ___
> > Discuss mailing list
> > Discuss@blu.org
> > http://lists.blu.org/mailman/listinfo/discuss
>
> A review of ls -la / shows nothing special?
>
> Is /home also part of /?   If so, might there be unwanted files in
> someone's directory?
>
> What about system permissions?Might one or more files have been
> written to places they should not have?
>
> What does a du -h / show?
>
> How about df -h?
>
> Scott
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