Control music on your Mac from your iPhone's Notification Center

The TodayRemote app lets you control music playback on your Mac from your iPhone without needing to open an app.

 

Apple has long offered the Remote app that lets you use your iPhone to control Apple TV or iTunes on your Mac. With the TodayRemote app, you can control iTunes on your Mac with the added benefit of not needing to open an app on your iPhone to do so. TodayRemote lets you add a widget to Notification Center, giving you access to playback and volume controls just by swiping down from the top edge of your iPhone. The app is free, but a $1.99 in-app purchase lets you use TodayRemote with Spotify, Rdio, VLC and Vox, while also adding global volume control and the ability to control multiple Macs from a single iPhone.

Police now 'see' through walls and know if you're home

Technically Incorrect: The Range-R is a piece of military equipment that police are using now to check if there's someone in a building.

       The Radar-R is handheld and can detect whether there    

        is human life inside a building.

Police forces increasingly are taking advantage of the technology behind military equipment initially designed for combat.

Sometimes, though, the police might be coy about which of these gadgets they use to protect and serve.

How to use WhatsApp from your computer

Tired of only being able to access your WhatsApp conversations on your phone? 

Start using WhatsApp Web.

       WhatsApp on an iPhone, with WhatsApp Web in the background. 

Earlier this week Facebook-owned WhatsApp announced WhatsApp Web. The new service makes it possible for a user to link a website accessible only through Google's Chrome browser to his or her WhatsApp account. In doing so, WhatsApp conversations will sync between the mobile device and desktop.