I have been posed the following question in one of my assignments. I would like to get some feedback on my answer, and possible some suggestions :).

"A large art gallery has hired you to photograph every individual framed painting in the gallery for an upcoming exhibition. They require colour accurate copies of the artwork for use in a catalogue."

And this is my response to the question.

Chosen Equipment: Transportable studio flash gear, Tripod, 20mm lens, 135mm lens

Explanation: Given that the art gallery is going to use colour accurate copies of the artwork for use in a catalogue, a transportable studio flash gear is important so that the correct exposure is achieved, so as to not darken or lighten to much the colours of the artwork. The tripod is needed so as to minimise the amount rotatation adjustment in post production and to get proper dimensions of the artwork. Preferably the camera on the tripod should be adjusted in such a way that the sensor is parallel to the artwork. As for lens choices, i would choose the 20mm and the 135mm prime lenses. The 20mm, just in case there are some very wide paintings so that they can fit on frame and the 135mm so that the painting can be easily framed from a distance. DOF should not be an issue here since, these are catalouge shots.

What do you guys think?

On my boat I have a number of electronics devices that run on 12V DC and normally get their power from an AC transformer. They include a media player, a network router, and a portable hard drive. Since the boat is wired for 12V DC I would like to set these up to run directly off of the boat's DC. This will free up a lot of power strip space, and eliminate the inefficiency and need to run them through the boat's DC to AC inverter when not connected to shore power.

I've read that this is dangerous territory since the boat's DC system is subject to surges and noise, for example when the starter or the electric windlass are engaged or the VHF radio is in use, and that this can damage electronics directly tied to the boat's DC system. I've also read that while the marine 12V system's voltage can vary from 12 to 14.4v (depending on whether the alternator and charger are engaged), these devices are not tolerant of these voltage fluctuations and are designed to expect a constant regulated voltage from their AC-DC transformer (wall wart). There are marine surge and noise suppression products available ranging from $50 - $200 to address this concern.

The marine market is renowned for its high markup. For safety and navigation applications where help is far away this is merited, but honestly if any of this equipment I am connecting failed nobody would get hurt or lost. The price of the commercial products seems high and I suspect the circuit should be relatively simple. The loads are all less than 5 amps.

I am interested in implementing a custom circuit to accomplish this protection.

Where should I start?

Are there reference designs for such a thing? What are the critical components: voltage regulation, surge suppression, noise suppression?

I've done a bunch or Arduino projects and am comfortable soldering, breadboarding, and putting together a custom through-hole project, but I lack a formal EE education and background. I've also done quite a bit of re-wiring on the boat so am pretty comfortable with the marine DC distribution and circuit protection and the ABYC standards.

A couple examples of commercially available products:



edit: is something like this a good starting point: http://www.ti.com/product/lm5118 and if so what else should I add? Ferrite chokes?

I have a queer issue with my Arch-Linux System.

I am unable to get any Sound Output when playing audio, AFTER starting X Server.

The issue is not with Volume Controls or Sound Card Drivers because, if I start any kind of Audio playback BEFORE starting X Server, I have absolutely no issues. The Audio keeps playing even after X Server starts. But if I pause / stop the audio, on restarting playback, I get no audio output.

Even terminating X Server does not resolve this issue. Rebooting the system though, helps.

I tried with different DE's. Checked with GNOME, XFCE, LXDE, KDE. Same issue everytime. So It's not due to a particular environment, but rather an issue with X.

I am not sure what files I should be checking for this. Could any please guide me through?

I am wracking my brain to try to figure out how to retrieve a custom content type's edit form programatically.

For example, I created a content type called "address", and have this:

$form = drupal_get_form("address_node_form");

But it does not work. I get back this warning:

Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'node_form' was given in drupal_retrieve_form() (line 771 of /home/richardp/public_html/drupal7/d7/includes/form.inc).

I know that in D6 you also had to include an object where you specify the type, but I have tried this and it still doesn't work.

When I try simply $x = node_add("page"); I get a white screen of death, presumably because I ran into a PHP error.

Am I supposed to be including a file first or something like that?

Here are the cards involved:

  • Levitation

    Creatures you control gain flying.

  • Gravity Sphere

    All creatures lose flying.

  • Oblivion Ring

    When Oblivion Ring enters the battlefield, exile a nonland permanent (card). When Oblivion Ring leaves the battlefield, return that permanent (card) to play under its owner's control.

  • Tranquility:

    Destroy all enchantments.

So, I play a Levitation, and all of my creatures gain flying. Next turn, my opponent responds with a Gravity Sphere, and so, since the Gravity Sphere came into play more recently, it overrides Levitation, so all of my creatures would then lose flying. So, I play Oblivion Ring on his Gravity Sphere, my creatures gain flying again. He then plays Oblivion Ring on my Leviation, they lose flying. I then play Tranquility, which simultaneously kills both Oblivion Rings and brings back the Levitation and Gravity Sphere. So at this point, does everyone fly, or do they all stay on the ground?

The Catechism of the Catholic Church implies that over a certain time in the period in the Western Church, there weren't any deacons.

CCC 1571 Since the Second Vatican Council the Latin Church has restored the diaconate "as a proper and permanent rank of the hierarchy," while the Churches of the East had always maintained it.

What is the history and explanation behind this?

The good answer will also correct any wrong assumptions.

I am not sure but if I remember correctly the NFL teams play 15-16 games during regular season and a couple more in the play-offs if they can make it the whole way. Why such a short season, in comparison to other leagues such as NBA where teams play 82 games in regular season and playoffs are usually a few games each round (best of 5-7-7-7)?

Why i should be choosing deployer extension over tridion events? i have to perform some operations on publishing. i heard there are performance benefits of deployer extension but want to understand how it improves performance over tridion events.

Thanks for replies. On publishing, i just need to get list of all static pages published so i can use that list in my .net custom utility i'm making for cachging those pages in advance before user hits them. So i just need to confirm whether i should be using deployer extension or tridion events but firstly need to understand benefits of deployer extension over tridion events.

We have a 2 year old son. He is our first kid. Recently he started throwing things at others kids which hurts them. I have done the following things to stop that behavior but they didn’t work:

  1. Take him into the bedroom and told him it is not good and it hurts the other. He is still doing that.
  2. Whenever he does it I say “Stop. And don’t do that”. He does it more.
  3. Stopped paying the attention. He gets frustrated and throws more things.

I don’t know how to make him stop throwing things. It really hurts other kids and sometimes he throws things at us, which hurts us too.

How can we stop him throwing things?

I have a site that has many articles on a specific dog breed. I want to help Google and other search engines to understand this article is specifcally on this breed or a topic realted to this breed. I thought about using productontology.org to define an additional type.

For example I have the following Schema.org markup:

<article itemscope itemtype="http://schema.org/Article">
   <link itemprop="additionalType" href="http://www.productontology.org/id/dog_breed" />

   <!-- Additional Code + Schema.org markup -->


Is this the correct way to indicate with Schema.org markup that this article is on (or related to) this specific breed? If not, what is the proper way using Schema.org?

Note: I understand fully that the best way is with great content that uses keywords. However, I am looking to know how to do this from a schema.org perspective.