Magnetic Door Chock for Firefighters

I came across this website http://magneticchock.homestead.com/ the other day by accident. A firefighter/paramedic has designed a magnetic chock that covers the strike plate of a door to keep the door from latching. The magnets are placed so the chock works on both residential and commercial doors. The chock also has cut-outs so it can be used to prop the door open. I have added the video below so you can see how the chock works. It looks pretty interesting, but I have not used it. It looks like it could help speed search and rescue time by allowing you to chock the door open and not having to worry about it. If anyone has used the chock, please let us know what you think by leaving a comment.

Firefighting Robot

I found these pictures of a firefighting robot at Hacked Gadgets. The Brazilian company ARMTEC has created this firefighting robot. The SACI (Incidents Support Combat System) robot brings the firehose directly into the fire or sprays water or foam from 60 meters. The robot can work for 3 hours before it needs a recharge.