Technology and Society

More On Fauxtography

From The Economist:

In an effort to reel in photography, camera-makers are making it more obvious when images have been altered.

One way of doing this is to use image-authentication systems to reveal if someone has tampered with a picture. These use computer programs to generate a code from the very data that comprise the image. As the picture is captured, the code is attached to it. When the image is viewed, software determines the code for the image and compares it with the attached code. If the image has been altered, the codes will not match, revealing the doctoring.

Another way favoured by manufacturers is to take a piece of data from the image and assign it a secret code. Once the image file is transferred to a computer, it is given the same code, which will change if it is edited. The codes will match if the image is authentic but will be inconsistent if tampering occurred.

Digital signatures, just as I suggested. But even that won’t be guaranteed:

…forgers have become adept at printing and rescanning images, thus creating a new original. In such cases, analysing how three-dimensional elements interact is key.

Yup. So we’ll also need the army of photographers, for independent views of the event in question, and an army of ever-more-sophisticated bloggers to keep the forgers honest (or at least catch them when they’re not).

Popular Culture

Decisions, Decisions

I’m having guests over for baby back ribs tonight, and am looking at recipes on line. I hadn’t really perused them before, but there seem to be as many ways to do it as there are recipes. Some say cook on the grill, a few minutes on a side, some say on the grill for an hour and a half, some say braise in the oven first, some say dry rub, some say marinate, for a few hours or overnight.

It’s almost like it’s hard to do it wrong, but I’m going crazy trying to figure out which way to do it. On the Fourth, I slow cooked some in the oven for hours in a marinade, then grilled them, but the meat was falling off the bone, so while they tasted great, they were hard to handle on the grill. And those were back ribs, but not baby back. Any suggestions?

War Commentary

Getting Cocky

We’re already starting to see dire consequences of Israel’s disastrous war. Al Aqsa thinks that it now knows how to defeat Israel:

“Hizbullah proved what we have already known and felt here in a number of opportunities. The Israelis are lying when they paint their military as unbeatable. A few hundred Hizbullah fighters showed them what an army is, and how to conduct a battle.”

According to Abu Nasser, Nasrallah’s organization still hasn’t had its last word.

“From our acquaintance with them, there is no way they are going to disarm. The organization has strategic objectives and the current battle proves that if it will decide to initiate another battle

Space

On The Edge Of Our Seats

COTS finalists are supposed to be announced in a couple hours.

Clark Lindsey has an overview of the program, and links (including one to the webcast of the announcement, which will occur at 4 PM Eastern).

[Update shortly after begin of announcement]

Just said that two have been selected. So we know they’re not going to be spreading money thin.

Well, that didn’t take long. SpaceX and RpK.

That means two (partially) reusable vehicle companies.

[Update a minutes later]

Well, I see via comments that I didn’t have to liveblog it. An army of reporters!

Economics

Heading South?

Has the oil fever finally peaked?

…the recent record-high prices have fueled a boom in exploration. And as that boom begins to yield more oil, the industry will gain a greater ability to ramp up production in one place in order to make up for any shortfall elsewhere.

This should reduce the impact of a supply disruption in, say, Iran or Nigeria, and ease what experts refer to as the security premium that’s currently build into oil prices.

“That [premium] is in the neighborhood of $25 dollars a barrel,” said James Williams, an energy economist at the consultancy WTRG Economics. “That number would go away, or most of it would go away, if we had more spare production capacity.”

And that’s not even considering shale and the tar sands, which are now coming on line, and will remain that way, as long as prices don’t drop back into the twenties.

Biting Commentary about Infinity…and Beyond!