Boeing's New Self-Cleaning Toilet
http://www.boeing.com/features/2016/03/self-clean-lavatory-03-16.pageusing UV light to kill germs.
Well, we got coating technology that do the same for nearly a decade. I've been wondering why it's still not widespread yet. At least hospitals should have it but still don't. Flesh eating germs have become the most dangerous these days...
Let's talk a bit about pattern locks on phones. I didn't bother because it's obvious but now there's a paper on it so:
https://nakedsecurity.sophos.com/2015/08/22/surprise-people-choose-predictable-android-lockscreen-patterns/Simply said people are bad regardless and it's not as good as your normal number password.
https://www.quora.com/Android-operating-system/How-many-combinations-does-Android-9-point-unlock-haveA simpler explanation than above:
From an encoding point of view the pattern is just window dressing for nothing but numbers, only less in this case.
For a normal code with x digits and 0...9 numbers you got 10^x combinations.
For the pattern you got only 1..9 numbers but each node has a more limited choice for the next follow up number. For example at 5 you have 8 choices; for 2, 4, 6, 8 you got 7 (all across), for the corners you got 5 choices.
So if you got 5398785 as password
normally this represents a 10^7 combination space to look for
pattern this represents only 9*8*5*5*7*5*7=441000 (includes starting #) or 4.41% of the normal
As you can see you got far less combinations with a pattern lock.
Yes, pattern is easier to remember but you need a longer code to catch up.
The most combination you can cover with pattern is with 5 and alternating with even numbers e.g. 5254565852 etc.
With x digits this would give you 9*8^(x/2)*7^(x-1/2) combinations. However, since you use even numbers only, the actual combinations used is half! ... reduced to 1/2^(x-1) so I would look at these first.
To compare with the example above (5254565852) you need at least 1+log(10^10/8 )/log(7)=10.7 digits (4831838208 combinations)... better yet 12 digits to have comparable strength to the normal way. You need far more to account for the even numbers trick. In this case log(2^5)/log(7)=37.8 more digits! or 51 digits in total. You think you can remember such a pattern?
But "crackers" only need to look at the surface to guess the pattern with far less combinations to try. Of course as Apple does it reducing the number of tries helps somewhat.
Edit: How long does it take to brute force crack it?
I dunno
If you take a prime searching program (from 0 to 2^32=4 billions range) running on a pre-pentium @100 MHz with 100 MOPs in 8 milliseconds... and theoretically on a current 3 GHz CPU with 3-600 GOPs in 1.3 microseconds ... I guess it could be finished before you lifted your finger.