Carrying on with our how to build series, here's an interesting thing to do this weekend - make a laptop sleeve out of a an old sweater. All you need is an old Stretchy Sweater, Sewing Machine and a Ribbon.
The Instructions are as follows: "1. Turn sweater iniside out 2. Line up bottom edges, this will become the top of the laptop sleeve. 3. Line up your laptop on the sweater and make sure the edge of the sweater is a few inches past the edge of the laptop. 4. Trace around the bottom and sides of the laptop. Continue the lines up the the edge. Sew about 1/2 inch inside the line, following all 3 lines." . Read More.
"The theory behind this project was that I could use a system of pipes and fans, to suck freezing cold Pittsburgh winter air from outside my room and blow it into my case. Ideally, the pipes would be made of thick PVC so they would be good insulators and keep the air cold until it reaches the case. Also it would have been nice to have had silicone rubber seals between each section of pipe and around the fans that pump the air."
Right we understand. That's what makes us "geeks" cool; we make paper cooled computers. The project is here, if you want to make one :)
"Superconductivity is a phenomenon that can occur in certain materials at low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field (also known as the Meissner effect)"
In plain English that means whenever certain materials are made really cold, magnets can float over it - hovering for a long time, and even create an invisible field that allows you to lift objects as you can see in the video. In this experiment liquid nitrogen is used to cool the material to a very low temperature.
Imagine if roads were made of this stuff. You could strap magnets on cars and get them to fly. Flying cars, or flying people.. shoes - you name it, this at a mass scale can be something. Very coool.
If you ever wanted to make your own beer, it can't get simpler that this. The Mr. Beer beer making kit can help you make your own home made premium quality beer with a shatter proof keg microbrewer, Pale Ale beer mix, 8 bottles, caps, labels and brewing guide - all of which are included in the kit.
The kit can brew appox. twenty 12-ounce beers and it's currently available at a special pricing of US$ 34.88 from here.