LEGO logic gates…
The Goldfish Online has some really interesting LEGO logic gates – “…designed working NOT, OR, NOR, AND, and NAND gates. Using two NAND gates I have produced a NAND gate latch or Flip-FLop. The natural follow on from these is clocked logic, full-adders and ultimately a genuine “computer” device. At the moment all these gates essentially just demonstrators. They work, but because of the limitations that arise through gear slippage, the real practicable use is probably not that great.” The details of logic gates can be found here – Link.
Incredible engineering, math and robotics – “NASA’s Stardust sample return mission returned safely to Earth when the capsule carrying cometary and interstellar particles successfully touched down at 2:10 a.m. Pacific time (3:10 a.m. Mountain time) in the desert salt flats of the U.S. Air Force Utah Test and Training Range.” [
RFID Toys looks excellent! And it’s written by MAKE pal 
Dennis on the Amiga forums is building a mini Amiga. He writes – “I bought a Spartan-3 FGPA development board, learned Verilog (after finding out that VHDL was not my cup of tea) and started working on Minimig. Minimig stands for (very originally ) mini Amiga. My aim with Minimig is to built a complete OCS A500 (with some extra grunt and features like 4Mbyte ram and fast 68000 processor) on a circuit board about the size of a floppy drive. Loading of programs will be done by means of a MMC flash card, which holds the .ADF images of the floppies like a sort of hardware UAE!” [
MAKE pal 
That was quick: here’s a new Intel iMac dissection, looks moddable too – “One can notice that the processor is not soldered to the motherboard, but via a socket. So, it will be potentially possible to change it in the future, if Apple does not prevent such modifications by some hardware or software trick.” [
TheDude06 writes “I finally completed my wireless guitar hero controller mod! With so much space available in the guitar, i knew it was possible. id just never got around to finally doing it. Long story short, i had to completely dismantle the guts of the guitar to do this. its not possible to do this mod without soldering or removing parts from the guitar hero board…. at least, not the way i dd it. Since i wasnt able to find a box that could turn any controller into a wireless controller locally, i figured id take a stab with these…”