This is still a work in progress, the database doesn't contain much yet. To see everything, search the symbol "(" in the formula box. You can right-click on any formula to change the display. Typical/arbitrary scale is displayed as \( m\times 10^e \) in Joules (\( 1\leq m\lt 10 \) with 3-digits precision) and computed with (arbitrarily chosen) typical values. You can search inside formulae, knowing they are written in LateX. For instance, "epsilon" will probably bring formulae about electromagnetic field. Any error ? Let me know at: website.cedric{at}gmail{dot}com