How heavy of an aquarium can your floor support?
Kevin writes – “One of the questions that is inevitably asked in every aquarium chat room, newsgroup and bulletin board is “just how large an aquarium can my floor support.” Then the answers follow from people who usually use basically correct structural principles to come to often incorrect conclusions. Unfortunately, I then jump into the fray and try to explain in just a few words, what cannot possibly be explained in just a few words. So the result is that no one fully understands my explanation, since it seems contrary to his or her experience. So here is the long winded explanation from some one (me) that has been working as a structural engineer since 1976.” Thanks Jason! Link.
“ReadyMade is a bimonthly print magazine for people who like to make stuff, who see the flicker of invention in everyday objects — the perfectly round yolk in the mundane egg”… and now they have a blog! Looks like it’s off to a great start! Go check it out – 
Mattr’s handy Instructable “The “Notebook Akku Hot-swapper” is a device which allows to exchange the rechargeable battery of a Notebook during runtime avoiding the need to shutdown/poweroff the system before the exchange.” 
Janos’s awesome case mod! “I already had a powerful computer setup so I wanted something more quiet, small and low power consumptioning to function as a basic home server. I love to tinker with hardware etc. so I wanted to make something quite unique for a case. I have seen many nice and creative cases before but none of them were made out of a bottle. In November I bought an industrial 3.5″ SBC board (with Socket370). For the project I selected a 1.5 litre Ballantine’s bottle for case. That was the proper size and shape for the task at hand.” [
Greg from DIY live writes “I know that starting out in Electronics can be intimidating. There is a lot that you have to understand in order to really get a grasp of electronics. Sure, you can find some schematics, and put them together, but without understanding what resistor to put with a LED, and why you pick that resistor for that LED, then you can’t really do much except for just copy other people’s designs. I decided to find a few links for everyone to go to that will help them understand circuits, and circuit design.”