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m2 50 cal kills a target WOOT!

"Training" video for motocross (thongs NSFW)

oohahh says...

Or perhaps, "exploited a race condition". That's my sweetie, leet hax0r *and* purveyor of fine feather headdresses.

What's a race condition? Let's look at a real world example, counting attendees at the ballpark.

This ballpark has several entrances, each with a single person counting people as they walk in. Each of those counters has a little handheld computer with a button. The computers are connected wirelessly to a central machine that keeps track of the total for all entrances.

(Did you wonder about counting the people who leave? Congratulations, you get a cookie! We'll skip that, just to keep things simple.)

Ready to write bad counting software now? Whoo, me too! ...the good times just never stop around here. ;-)

So, the central computer can do two things:

1: report on the total number of attendees
2: set the new total number to whatever we say

Each wireless clicker can do just one thing:

1: Ask the central computer for the total number of attendees, add one, and report the new number back

What's the problem? Well, there's a small lag time between when the clicker asks for the total, and when the new total gets back to the central computer.

TWO COUNTERS ENTER, ONLY ONE WILL LEAVE!

Alfred and Bettie both click at the exact same instant
Alfred and Bettie both learn that there are 999 total attendees
Alfred adds one and reports that there are now 1000 total attendees.
Bettie adds one and reports that there are now 1000 total attendees, too.

Whoops? There should be 1001 total attendees, not 1000. We lost one.

Because this is a bug brought on by time, or by when things happen, it's called a "race condition", that is, when two processes run at the same time and assume that nothing will change behind their back.

Probably the Worst Gaming Peripheral Ever

pickleking says...

I'm pretty sure that some of you guys take your gaming a bit too seriously....

Actually, this looks to me like an ideal way to encourage pudgy kids (of all ages) to put down their handhelds, get up off of their pudgy butts and get active...bring up the energy level...bring down the obesity factor...

Heck, maybe some too-serious-gamers might even discover that they prefer real live physical activity....who knows? perhaps the next generation of semi-pro kickboxers, competitive ballroom dancers or long distance frog-kick swimmers are just an "ACTIVATOR" away.

Soap - new look on computer mouse

Presenting the Sony Mylo (2:02 min)

Amazing Footage of Iraqi Sandstorm

deathcow says...

Even a glancing view through the topmost portion of the approaching cloud transmits no hint of the variations of sky brightness above the cloud. It looks pretty opaque. A person turns on a handheld flashlight around 2:13

Al Gore's Unseen Campaign Video

sfjocko says...

quote from archibaldtuttle --
During the 2000 Presidential campaign, Al Gore, a movie fan in general and a fan of Being John Malkovich in particular, asked Spike Jonze to come down to his house for a day to follow him and his family around with a camera. Spike brought his tiny handheld video camera and came up with a portrait so real, so humanizing, and so powerful that of course Gore's advisors had to bury it.



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Beggar's Canyon