2012 Technology New Update: Researchers Develop a Penny-Sized Nuclear Battery

A tiny nuclear energy source could help power micro- and nanomachines of the future.  Micro Nuclear Battery Nuclear packages can still pack a lot in small sizes, said Moneypenny University of Missouri.

Nuclear power has long provided steady energy sources for everything from homes to deep space probes. Now researchers have begun developing a tiny nuclear battery the size of a penny that could provide power in a smaller, lighter, and more efficient package.

Most people probably think of nuclear power that involves fission and the splitting of atoms. But nuclear power can also come from the natural radioactive decay of isotopes such as plutonium-238 — a much gentler process that has powered nuclear generators aboard spacecraft such as NASA’s Cassini probe.

Nuclear batteries have also powered more familiar devices on Earth, such as pacemakers. The higher cost of the batteries represents the tradeoff for a long-lasting power source that provides more energy for its size than chemical batteries.

“The radioisotope battery can provide power density that is six orders of magnitude higher than chemical batteries,” said Jae Kwon, an electrical and computer engineer at the University of Missouri.

Kwon and colleagues want to miniaturize such batteries to power micro-devices and nanotech systems. The batteries won’t pose any fission-related threats, but engineers do face a challenge in preventing the radioactive decay from damaging sensitive parts of the batteries.
“The critical part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure of the solid semiconductor,” Kwon noted.
The researchers hope to get around that problem by using a liquid semiconductor rather than a solid semiconductor. Eventually they also want to boost battery power, shrink its size, and eventually end up with a battery thinner than a human hair.

Read more: http://realitypod.com/2009/11/researchers-develop-a-penny-sized-nuclear-batte...

Technology New Update, 2012: Top Ten (10) Banned iPhone Applications. Apple, iOS, jailbreak, davidlim, unlock, 4S

Apple has reportedly revamped its apps approval policy in a bid to make Apple marketplace safer and more productive. In light of these new changes, we’ve taken a look at the most outrageous App Store rejects from years past.  Whether too sexy, too profane, too offensive, or too partisan, these apps just couldn’t make the cut.

Check out these banned apps below, and vote on which ones you think should (and shouldn’t) have been allowed.

10. I am Rich

This app, nothing more than a ‘glorified screensaver,’ cost $999.99. Once downloaded, a glowing red gem would appear on the screen, followed by the words, “I Am Rich.” Its iTunes description read: “The red icon on your iPhone or iPod Touch always reminds you (and others when you show it to them) that you were able to afford this. It’s a work of art with no hidden function at all.” Eight people actually purchased this functionless app before Apple removed it.

Here is a review of the app

9. Zombie School

This app simulates a quest for survival when everyone in the schoolyard has been infected by a ‘Zombie Virus.’ The app’s description read: ‘Your local campus has been infected by the Zombie Virus!!! Every one is infected!!! Will you run or will you fight to eliminate all the Zombies… You have the control over the Zombie shooting tower that your supporters have made you. Starting with a single bow and arrow start eliminating the Zombies.’ The app, which was criticized for promoting school violence, was initially approved, then later.

Here is the app preview

Do You How App Developers Can Become Millionaires? Apple iPhone 4S, iOS, Auckland, davidlim

There are infinite competing mobile apps in the market. However, you can still win against the competition, get noticed for your work and more importantly, make money from the sales of your app. Here is how app developers can become millionaires

How to Pick a Padlock or Combination Lock in 3 Easy Steps

WARNING:  The following content is for ready pleasure or acadmeic research purpose only. Blog author is NOT responsible for any action of the reader, nor any wrongful activities!

To pick a lock, you need to know the anatomy of the lock

Method 1

Pl click on the image below to enlarge

Method 2

Forgot the key — or combination — to your lock again? No worries; we’re going to help you pick that padlock without breaking it.

To complete this How-To you will need:

A razor or box cutter
An aluminum can
A marker
Scissors
A cylindrical object the size of your padlock shackle

Warning: Working with sharp objects and cut aluminum is dangerous. Use extreme caution.

Step 1: Cut off the ends

Using a straight-edge razor, carefully cut the top and bottom off an aluminum soda can.

Step 2: Slice from top to bottom

Cut the can from top to bottom using the scissors, and then fold the aluminum down so you have a flat sheet. Trim the edges so they are straight.

Step 3: Mark rectangles

Using a marker, draw rectangles on the silver side of the aluminum sheet that are 1 ½ by 2 ½ inches, and cut one of them out.

Step 4: Quarter one strip

Take one of the strips, draw a vertical centerline across the middle, and mark the strip horizontally into four equal sections.

Step 5: Draw an “M”

Draw an “M” whose top reaches the halfway point of the middle line and whose sides are about a quarter of the way in on each side. But instead of the center of the “M” looking like a “V,” round the bottom so it looks like a “U.”

Step 6: Cut out the triangles

Using scissors, cut out the M with the rounded middle tip that you drew. Fold the top quarter down to the middle of the rectangle, and the two legs of the “M” up from the bottom so that they cover the piece of metal you’ve just folded down.

Step 7: Roll the center

Find something the approximate circumference of your padlock shackle, like a pen or marker, and wrap the shim (the “U” shape) around it, shaping it to fit into the narrow space between the shackle and the lock. Fold back the wings.

Step 8: Pick the lock

Using the wings as handles, wrap the cylinder part of the lock pick around the shackle and insert the curved part in the space between the lock and shackle. Maneuver it around until the lock pops.

 

How to Pick a Door Lock With a Paper Clip

 

 

how to pick a padlock with a bobby pin