well I've always wanted to experiment on plants and bugs like inducting them to lasers and magnetic and electromagnetic fields.. like spiders building webs surrounded by a high intesity of magnetic field or seeds growing exposed to laser with different wave lengths.. those are not really R&D but experimenting is fun also.. for R&D works I would stick with software development or just simple mechanics/industrial design. you can invent a little life safer gadget out of nothing but with just little creative thinking and some trials utilizing cheap equipment. good luck..

dexpot is really an effective solution, I'm using it over a year and never crashed or stumbled under the heavy load of 4 desktops full of applications running. Besides its freeware !!