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Here’s a nice example of how hackers can easily freeze memory of the computer to retrieve the encryption key.

Abstract Contrary to popular assumption, DRAMs used in most modern computers retain their contents for seconds to minutes after power is lost, even at operating temperatures and even if removed from a motherboard. Although DRAMs become less reliable when they are not refreshed, they are not immediately erased, and their contents persist sufficiently for malicious (or forensic) acquisition of usable full-system memory images. We show that this phenomenon limits the ability of an operating system to protect cryptographic key material from an attacker with physical access. We use cold reboots to mount attacks on popular disk encryption systems — BitLocker, FileVault, dm-crypt, and TrueCrypt — using no special devices or materials. We experimentally characterize the extent and predictability of memory remanence and report that remanence times can be increased dramatically with simple techniques. We offer new algorithms for finding cryptographic keys in memory images and for correcting errors caused by bit decay. Though we discuss several strategies for partially mitigating these risks, we know of no simple remedy that would eliminate them.

via hacknmod, Hack Page

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I have to admit to playing FIFA on the PS3 and it’s a lot of fun.  Of course, it was my friend’s PS3 so I didn’t have much chance to practice but here’s a cool PS3 video tutorial that shows you how to master all the important skills you need to beat your friends.

Advanced tricks and juggling for Fifa09 for Playstation 3.

Additional info:

0:10-0:20
Kick Ups
Works only when standing

0:20-0:39
Around The World
Also only when standing still, the timing on the rotation of the RS is important.

0:40-0:55
Laces Flick - Overhead Flick
Instructions appy when player facing away from the camera.

0:55-1:01
Rainbow Flick
Timing on last RS flick is the most important thing. Instructions apply when player facing away from the camera.

1:02-1:15
Rainbow Variation
Timing on last RS flick is the most important thing. Instructions apply when player facing away from the camera.

1:16-1:32
HTW - Hop the World
Holding the L3 button is the only difference from the ATW.

1:33-1:52
Flick up for a bicycle kick
Instructions apply when player is facing the camera. (Overhead kick effective when done on the 16m line)

1:52-1:59
Flip-Flap/Elastico
Works when standing and when jogging.

1:59-2:09
Hocus Pocus
Awesome trick!
2:10-2:23
Step Overs
Works best when standing still, especially if you’re trying to do more then one.

2:24-2:40
The Zidane Pirouette
Can be done both while standing still, and when jogging. Probably the most effective feint when done correctly.

2:40-3:03
Fake Shot
Doesn’t work on the keeper! Effective when playing against a real person online etc..

3:03-3:15
Ronaldinho Sombrero Flick
Instructions apply when player facing away from the camera.

3:15-3:24
Heel Flick
Most effective when running next to your opponent, not to get past.

3:25-3:30
Blanco Hop
Effective when… you wanna look like an idiot.

3:30-3:42
Standing Lob Pass
When the normal through ball just isn’t good enough for ya!

3:44-3:58
Showing off!

via sports2forex

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Check out this cool Photoshop DIY where the author shows you how to make lightning and super nova effects.

Apart from the lightning effects, this DIY would be great for playing around with different features of Photoshop.

in this tutorial i show you how to make a lightning effect in adobe photoshop and also a cool supernova effect. i ask that you please watch in fullscreen
also if you have any questions about this please messege me and ill get back to you

via directoryoftutorials

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I am sure many of you encounter situations where your nuts or bolts stay on the rim, causing you to accidently break it off.  Now, if you ever get those hard-to-remove nuts whether from rust or whatnot, you can use this method of heating wax with propane gas near the nuts and bolts to get them totally loosened.

I’ve personally broken a rim stud before, and needless to say, I wish I had known how to do this back then.

I have a trick that has been around for a long time. This is a trick we used to use for exhaust manifolds when the bolts were so rusted in that breaking a bolt was very likely to happen. To avoid having to remove the stud in a separate process we used this trick to get them loose. This works better with a fair amount of heat to start and then let the wax slowly cool for about 3-4 minutes before attempting to remove the bolt of nut.

via metacafe

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Check out this really cool DIY on how to make a vertical wind turbine.  This thing can produce some good amount of electricity for under $300.

With this one I am hoping to get the 100 watts.

Here is how I did it.

First we need:
–5 pvc tube. size 3″X10′ (hardware store)$48

–3 bike wheels. size 12″ (junk yard or ask your kid to use their bikes for a minute) maybe $5

–Ametek38 volt (ebay or surplus store) $60 (a problem with ametek, it needs 700 rpm to reach 14.1volt.

–Or buy windblue alternator (ebay) $250 it will only need 200prm to reach 14.1 volt

–1 square foot 1″ plywood or anything 12″ diameter (laying around)

– 3 X 2×4 X 12′ studs (from lumber store)$11

I am not going to name the tools, but I used the usual tools.

faroun

via hackaday, instructables

Here’s a really cool lookin’ car made from junk parts while it does 4.5 seconds 0 to 60MPH and gets 35+MPG!

This is the final result of 15 months and at least 800 hours of work in the garage. This is not counting time spent designing, ordering parts, negotiating prices, etc.

The car was built from scratch. The engine is an Acura k20a3 from an RSX. It sounds awesome.

Special thanks for the Make community for inspiring the maker spirit in me. Building stuff yourself is a much better way to be a citizen than senseless consumption.

The car has a good amount of junk (recycled stuff) in it. The stainless panels all came from old appliances. The black body panels came from an ancient kayak and an old doghouse. The throttle pedal was made entirely from salvaged parts from a dumpster at an engineering firm around town. Of course, the engine was also recycled from a crashed car.

It’s a blast to drive.

0-60: 4.5 seconds
MPG: 35+ miles per gallon
The best part: the bizarre looks I get from random strangers.

via make, flickr

If you live in a certain area with high temperatures and humidity, your house might be prone to attract a lot of fruit flies.  They are harmless but sometimes you will need to control them using DIY methods such as this involving a water bottle, apple cider, and more simple household materials.

It seems our house has been overrun with fruit flies this fall with all the garden vegetables fruit in the house. So we built a DIY fruit fly trap to try and reduce the “herd”. My wife read about making a fruit fly trap from a water bottle so we gave it a try.

via homeconstructionimprovement

Drink a lot of beer in the bottles and have too much recycling every week?

Don’t worry, you can turn your empty beer bottles into powerful solar-powered LED beer lanterns that will light up your house at night for free.

Al Gore and company have helped us to see that our planet is in peril. Lend a hand, make a toast, and help illuminate ways for saving Earth — all at the same time! It’s easy to do your part: recycle, refill, and recharge. Just take your fave beverage bottle (keep the cap), drop in a flexible solar panel, a step-up switching regulator circuit, a rechargeable battery pack, and a powerful LED, cap it, and you’ll have a self-sufficient garden lantern that is ideal for shedding some light on solving environmental issues. You will have to choose your bottle carefully, though. Clear glass rules. Also, wide-mouth bottles are easier to convert than narrow opening long-neckers. Like your grandfather who built ships in discarded bottles, put a modern spin on bottle building while being conscientious of your world. Cheers!

via popsci

You know that cat’s litterbox can become potentially dangerous to your health with its deadly fumes, especially for pregnant women.  Now, here’s a cool way to make a self-ventilating cat litterbox so you don’t have to worry about all that invisible bad-for-your-health fumes.

I recently saw a post on Apartment Therapy showing a homemade “Cat Jet” ventilation solution (http://www.apartmenttherapy.com/ny/at-email/tools-for-pet-living-the-cat-jet-and-the-roomba-email-from-9108-062199) using a bathroom fan to vent the noxious fumes of a litter box from the inside of the house to the outside. As a home automation geek I immediately was inspired to take it up a notch by combining similar hardware to a series of timers.

Behold: Alan’s Automated Cat Jet! Total Cost? $80.

Consisting of one bathroom fan, one bathroom vent kit, one Smarthome Appliance module, and my home automation system, Alan’s Automated Cat Jet shows once again that with technology, anything is possible.

via bb gadgets