Hello; When we think everything has been invented, more amazing new tools and gadgets appear to make your life easier. I like this videos, but sometimes it is a little too quick. It would be nice to linger a bit on certain items, so it is possible to see what it is about, or to read the commentary. I like all these things, they are absolutely interesting. The bio fuel stick is cool up till you do need to turn it off if it can't stop by water than how do you put that kind of fire out when you have to? Trick number one closes air passages. In a long run it may cause high humidity and mould under the top layer of tiles. It is forbidden to close the air flow. Why do so many cool new things look like they were designed by a home-schooled alien?