/technologies/internet-of-things/b/blog/posts/technology-can-be-pretty-grimmOnce upon a time there was a world that believed very strongly in magic. This world was full of witches, never ending porridge, stones that could turn water into soup and it was a place where iron was a force to be reckoned with. It is possible ...en-USTelligent Community 12https://community.element14.com/technologies/internet-of-things/b/blog/posts/technology-can-be-pretty-grimmMon, 01 Sep 2014 05:11:06 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:bd84e540-e956-47d9-9b2c-c03376a8ac55jw07520<p>I don&#39;t know about wolf detectors but I did have to build a Ninja detector the other day. I am lucky enough to have 3 grandchildren, all cousins, that are eight years old. One of their favorite games is to sneak around and position themselves in the appropriate position to scare the stuffing out of Grandpa. After a little too much activity for me the other day I quickly cobbled together a PIR sensor with a sonalert and told them that it was a Ninja detector. There assignment was to use their considerable Ninja skills to sneak past it and get to grandpa. It kept them busy sneaking and creeping for about 45 minutes while I had a chance to take a breather.&nbsp; Beep Beep Beep.</p><p>&nbsp;</p><p>PS if you are going to get any usable energy out of the rock in the soup you will have to leave half of it out in the cold.</p><p>John </p><img src="https://community.element14.com/aggbug?PostID=18302&AppID=27&AppType=Weblog&ContentType=0" width="1" height="1">