Captain Herrmano’s Mystery Box – a Reverse Geocache

Captain Herrmano's Mystery Box
Today we’ll be talking about Captain Herrmano’s Mystery Box, a piece of hardware that I built over a year ago. But what is this box, what does it do, who was it built for and who is this Captain Herrmano anyway? This will be the topic of this article.
What is Captain Herrmano’s Mystery Box?
The box is a so-called “reverse geocaching puzzle”. The inspiration for this project was a reverse geocaching box built in 2009 by Mikael Hart. Unlike Mikael’s version of the box, it’s not enough to simply find and visit the target place. To unlock the treasure of Captain Herrmano, the player has to solve more tasks.
The special thing about this box is that it interacts with the player, and not just via text – it also has sound and light feedback, as well […]

Best of Web #7

best of web - runde 7Today it is once again time for another round of “Best of Web”. This week I have a few more links on the hand, I would like to share with you. Overall, it comes back this week to some technical topics – good for geeks and nerds among you, rather poor for lovers of more “lighter fare”. Among others, today is about compilers, the history of Windows, some web design basics and a bit of image recognition in C#. I hope there is one or the other interesting article for everyone.
As always – who has more link tips, is hereby invited to send me these for one of the rounds of my “Best of Web” series. And now have fun with my recommendations of the week.
Quick introduction to compiler construction
On TechPro Tristan McNab explains in […]

20 Dropbox tools you should know

When it comes to online storage and sync, then Dropbox is my number 1 and because I’m pretty sure I’m not alone with this sight, below there is a collection of 20 tools which will help you to realize the full potential of your Dropbox.
 
 
dropplets
#1 – dropplets.com / Blog with Dropbox
With dropplets your Dropbox becomes a blogging platform. After the “installation” your Dropbox behaves like a web server.
New articles can be written in the easy to learn Markdown language and published by simply save them in your Dropbox. The whole thing is quick, easy, and also looks quite chic.
 
 
calepin
#2 – calepin.co / Publishing by Dropbox
Calepin.co is the second blog system in our listing. Also Calepin supports the markup language “Markdown” and allows easy publishing of blog […]

How to compare dates in PHP

php_date_compareHow to actually compare 2 dates in PHP with each other? The question sounds easier than it is.  The first thought that usually comes is the following. We store both dates as strings and compare them.
Preliminary

<?php
$date1 = "2012-1-12";
$date2 = "2011-10-12";

if ($date1 > $date2)
echo "$date1 is newer than $date2";
else
echo "$date1 is older than $date2";
?>

Output:

2012-1-12 is newer than 2011-10-12

At first glance this seems to be a workable solution. But what if the two data is in a different format?

<?php
$date1 = "12-1-12";
$date2 = "2011-10-12";

if ($date1 > $date2)
echo "$date1 is newer than $date2";
else
echo "$date1 is older than $date2";
?>

Output:

12-1-12 is older than 2011-10-12

Now the date in 2012 is declared to be older than the date in 2011, which is of course wrong. However, from PHP’s point of view, this behavior is correct, because two strings were compared and […]

iPhone 5s giveaway – Win 1 of 10 new iPhone 5s

iPhone 5s zu verschenkenAmong the first 1000 commenters here on the blog, I will give away 10 brand-new iPhone 5S *. To enter the contest you have only two thing to do. Write a comment below this article and like my Facebook page. In the next hours I also will post two more tasks on Facebook which will raise your chance to win one of the iPhones. The first task will be: “Like this, if you ever had a cold.” and finally the second upcoming task will be a survey with the following question: “If you are a men, like this – if you are a woman share this”. And always stay tuned because next month I will give away even 100 MacBook Pros*. And so it goes with the social media, am I right?
Now let’s face it […]