var fDesc=new Array(); fDesc[0] = "Excel workbook contains solutions to dozens of basic formulas from physics, technology and mechanical engineering. Help, pictures as well as many selection tables with values of various coefficients and material properties are available for the formulas.

Main Features :
- Characteristics of solids (volume, surface, weight, inertia moment)
- Rectilinear motion (speed, acceleration, trajectory, time, force, energy....)
- Rotation motion (speed, acceleration, trajectory, time, force, energy....)
- Thermal expansion (longitudinal, cubical)
- Friction (shear, rolling, journal, rope, belt)
- Design of engine capacity (pump, blower, hoist, crane)"; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }