I have selected to have pop-up notifications for calendar events. When a notification pops up, I hear my notification sound and see the pop-up. After tapping to dismiss the pop-up, the sound continues to play until I tap the notification drawer.

Has anyone else noticed this and is there a way to make the sound stop after dismissing the pop-up?

#!u UP::Shutdown, 9 ;shutdown computer, power off
#!r UP::Shutdown, 3 ;shutdown computer, restart
#!s UP::DllCall("PowrProf\SetSuspendState", "int", 0, "int", 0, "int", 0) ;suspend (sleep)
#!h UP::DllCall("PowrProf\SetSuspendState", "int", 1, "int", 0, "int", 0) ;hibernate

FileRecycleEmpty
FileRemoveDir, %A_MyDocuments%\Temp, 1
FileCreateDir, %A_MyDocuments%\Temp

#IfWinActive ahk_class CalcFrame
    NumLock::Send {ESC}
    NumpadIns::Send 0
    NumpadEnd::Send 1
    NumpadDown::Send 2
    NumpadPgDn::Send 3
    NumpadLeft::Send 4
    NumpadClear::Send 5
    NumpadRight::Send 6
    NumpadHome::Send 7
    NumpadUp::Send 8
    NumpadPgUp::Send 9
    NumpadDel::Send .
#IfWinActive

If you're new to AutoHotkey, Lifehacker's beginner's guide is a good place to start.

o open them in the default application.

What you’re about to watch here is the smallest stop-motion movie ever made. Called “A Boy and His Atom,” the one-minute clip was compiled by manipulating a few dozen carbon atoms on a copper surface.

We’re having a hard time getting our heads around just how astoundingly small the scale is, here. Each frame of the IBM video measures a paltry 45 x 25 nanometers. A single inch measures 25 million nanometers across. Putting that into perspective, one nanometer is a thousandth of a thousandth of the size of a piece of rice. So, it would take about 1,000 frames of the film laid side-by-side to extend across a single human hair. Needless to say, this video is HUGELY magnified.

In light of the achievement, Guinness World Records has certified the 250 frame film as the “Smallest Stop-Motion Film.” The project showcases IBM’s efforts to design advanced data storage solutions based on single atoms.

IBM did it by moving atoms with a scanning tunneling microscope (STM). The computer-controlled device weighs two tons, operates at a temperature of -268 degrees Celsius (to make the atoms hold still), and magnifies surfaces over 100 million times. The microscope allows scientists to control temperature, pressure, and vibrations at extremely exact levels, thus making it possible to move atoms with great precision.

When making the stop-motion film, the researchers used the STM to control a super-sharp electrically charged needle along a copper surface. The needle was positioned a mere one nanometer away from the surface, from where it could physically pull atoms and molecules to an exact location. At such a close distance to the surface, the charge can “jump the gap” — an effect in quantum physics called tunnelling.

Interestingly, the atoms made a unique sound when they were moved, allowing the scientists to know how many positions they actually moved.

As the process moved along, the researchers rendered still images of the individually arranged atoms, creating the remarkable 242 frame movie. It took the IBM team two weeks of 18-hour days to complete.

“This movie is a fun way to share the atomic-scale world,” said IBM’s Andreas Heinrich. “The reason we made this was not to convey a scientific message directly, but to engage with students, to prompt them to ask questions.”

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Can anyone verify this option was previously available? I'd like to update the article if that's the case.

One of the new features in Android's updated Play Store app is the ability to delete apps from your download history — something that was impossible before.

UPDATE: corinne mentions this feature was available in previous versions of the Play Store app, so you may not need to update to the newest version after all.

To delete an app, go to the "My apps" section in the Play Store and tap the "ALL" tab. Any app that can be deleted will have a small 'x' in the upper right corner of the entry. Tap on that and confirm you want to delete the app to remove it from your history.

Don't have the new Play Store on your android device yet? Droid Life has instructions on how to get the new version here.

To that end, I've created a Google Group for Hackerspace Admins. It's invite only; please include your kinja ID when requesting access. Hope to see you all there!

UPDATE: To be clear, this forum is meant for those with admin access to the site. Edward Callow has started a forum for all authors here.