I'm not satisfied... Only questions with no explanation You must at least show the procedure of working after solving..
Add an option to see the measurements calculated so we can check ourselves
Disgusting It has lot of problem.
Too smaill to see it Works but not clear
Vernier calliper Very nice tool
an open source physics at Singapore simulation on Micrometer for O Level.
Graphical Analysis™ is a powerful tool for creating & analyzing science graphs.