National Geographic Photo Contest 2013, Part II, courtesy of Alan Taylor for In Focus. All are amazing, follow the source link. 

Why first-person shooters are so enjoyable

Why first-person shooters are so enjoyable

There’s evidence you can will yourself to wake on time, too. Sleep scientists at Germany’s University of Lubeck asked 15 volunteers to sleep in their lab for three nights. One night, the group was told they’d be woken at 6 a.m., while on other nights the group was told they’d be woken at 9 a.m.. But the researchers lied-they woke the volunteers at 6 a.m anyway.

And the results were startling.

We wake up before our alarms quite precisely if we’re used to sleep and wake up at the same time. Quite interesting study. 

Why Airline Food Sucks

Why Airline Food Sucks

http://www.youtube.com/watch?v=w9Sx34swEG0

Coin looks like a promising idea: store all your credit cards into one. 

But it is not free of shortcomings, mainly its dependency on a smartphone.  

As Christopher Mims pointed out for Quartz:

It sounds like a great idea… until you realize that the price of replacing a handful of plastic credit cards with a single one is that your ability to pay for anything becomes entirely dependent on the battery life of your smartphone. That’s for security reasons: If it loses contact with your phone for a user-specified period of time, from one to 10 minutes, Coin deactivates itself.

They will probably come up with some kind of solution for this problem at some point. Something else would be how Coin will ever going to be able to circumvent the regulatory maze of mobile payments outside of the US.