please give some more ideas ! the device can be anything that for example can be used to help the handicapped or the elderly .
please pour in new ideas .anything out of the hat will could be useful!1
i have to make a working project (basically a machine) , the idea is to take any problem provide its solution (a device ) which is for the welfare of the society .
i m a 2nd year mechanical engineering student
try to give as many ideas as you can!
i doesn't have to be complex even...