English: The schematic depiction of the scaled velocities and y-pressure gradient for Blasius boundary layer flow versus the scaled normal height above the wall, ${\displaystyle \eta }$. The red line is the Blasius scaled velocity ${\displaystyle u(x,y)/U}$, the green line is the Blasius ${\displaystyle v(x,y)/{\sqrt {\nu U/x}}}$ and the blue line is the Blasius ${\displaystyle {\frac {1}{\rho }}{\frac {dP}{dy}}/{\sqrt {\nu U^{3}/x^{3/2}}}}$.