Ellen is a CPU simulator for educational purpose. A virtual accumulator based CPU is modelled. The main point with Ellen is to program the micro code in order to understand the basic concept of a CPU.
To build a 3d Printer that uses tine micro-pipette of some micrometers
To build a 3d Printer that uses tine micro-pipette of some micrometers of radio to print from a 3d scheme a functional kidney, using steam cells,in 6 months.