The Easiest (And Best?) Way To Search For Beautiful Wallpapers In Your Specific Screen Resolution And Size

Artem Russakovskii — Sun, 10 Jan 2010 00:25:35 +0000

There are undoubtedly a lot of wallpaper sites. Even more undoubtedly, most of them suck, both in content and filtering capabilities (by resolution, theme, etc).

My preferred way until recently was Deviant Art, because it had a lot of content and very nice filtering – I could specify my exact resolution.

However, as of some time ago, Deviant Art browsing by resolution disappeared, as evident from trying to find it on their site and from the comments on this post announcing the capability in the first place.

The Solution

Sometimes the solution lies right in front of our eyes – we just have to open them to see it.

A while ago, Google Image Search expanded their support for image size filtering (small, medium, large) to include the actual image size via this query:

imagesize:NNNNxNNNN

And because it's Google, you can add search terms to narrow down the subject.

Here are some examples.

Example 1: "wallpaper"

imagesize:1920×1200 wallpaper

The image size is so specific that it's usually not even necessary to include the word "wallpaper" – most of the results will already be wallpapers, except maybe for a few desktop screenshots.

Example 5: "babe"

imagesize:1680×1050 babe (be careful if you have SafeSearch off ;-] )

Starter Links Per Resolution

Here are some quick starter links for common resolutions to get you started:

Conclusion

What sites do you use to get your wallpapers, specifically allowing filtering by resolution? No spam links please.

How To Find Out The Number Of Videos On Youtube

Artem Russakovskii — Thu, 14 Aug 2008 16:01:31 +0000

According to Wikipedia, in April 2008, the number of videos on Youtube was 83.4 million (ref: http://en.wikipedia.org/wiki/YouTube#cite_note-5). However, the link in the cite note now displays “*” video results 1 – 20 of millions, without showing the real count.

Here's one way I found to get an estimated, but relatively accurate, number of videos on the popular video sharing site Youtube. The idea is simple. Get this feed: http://gdata.youtube.com/feeds/api/videos/-/* and parse out the number inside the tag.

So here it is: the number of videos on Youtube is currently fluctuating between about 141 million and 144 million. The number goes up and down, which points to the fact that these are estimates.

That's a whole boatload of video if you ask me. To put it into perspective, a modest and completely inaccurate estimate of the amount of space all these videos occupy would be something like

142,500,000 * (a + b + c + d), where

a = average size of an FLV, let's say 4MB, though I'm probably way off. There are lots of really short videos out there and Youtube has a 10 minute cap. It's just an estimate, anyway.
b = average size of an MP4, let's say the same 4MB. There are lots of factors that would make this number completely inaccurate, the biggest one being I don't know at which point Youtube started generating MP4s and if they generated them for all videos or just the ones going forward). It also depends on whether they managed to save all originals that people uploaded.
c = average size of all images associated with the video, let's say 50KB. Small thumbnails and a larger first frame don't take that much space.
d = average size of an original uploaded to Youtube. These could be immediately discarded after the encoding is complete, or perhaps Youtube saves the past few months worth, or if they're completely insane, they're saving ALL originals ever. I'm going to throw a semi-random number in – 50MB per file.

So, just the FLVs, MP4s, and images would equal ((4 MB) + (4 MB) + (50 KB)) * 142 500 000 = 1.06818788 petabytes.

If Youtube has been saving all originals since the beginning, this number goes up to ((4 MB) + (4 MB) + (50 MB) + (50 KB)) * 142 500 000 = 7.70386123 petabytes.

In addition to the video files, I wonder how big Youtube's databases are. Depending on how the data is compacted over time (i.e. daily views folded into monthly after a month, monthly into yearly, etc), I would estimate something along the lines of 1.5-2TB, which is negligible compared to the space needed for videos. I'm quite sure the databases are mysql, split into many shards for better performance, perhaps tweaked with Google patches. Watch Youtube's Scalability Presentation and have a peak at this article for more info.

So there you have it, folks. Am I far off in my calculations? If so, don't hesitate to correct me.

Edit: It seems that I forgot that Youtube also generates 3gp, so add some space needed for that.

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