Which of the following statements about concrete frames is false?

Wing-tip device for the tip of a wing or the blade of a wind generator or of a marine generator that makes it possible to reduce or even cancel what are known as wing-tip vortices.

Also the tip vortices of a propeller are arranged in a helical shape (please look at related link 4).

Which of the following statements about concrete frames is false?

Methods for using tip generated vortices to improve performance of foils.

Wing-tip device for the tip of a wing or the blade of a wind generator or of a marine generator that makes it possible to reduce or even cancel what are known as wing-tip vortices.

Also the tip vortices of a propeller are arranged in a helical shape (please look at related link 4).

Vortices marginal (vortex) nature is so constituted that it abhors a vacuum ...

Wake Turbulence: the association of marginal vortices and leak vortices that join downstream of the profile, gives rise to a highly disturbed area.

Powder is charged in the center of the swirls so that it is enwrapped by the swirls and mixed with the swirls of the liquid.

With the exception of the leader, all the birds in the group are placed in the updraft of the marginal eddies to minimize the effort required.

These transverse flows lead to the winding of a vortex web at each end of the wing (Figure 6), which forms two marginal vortices, also called tip vortices.

The subsystems direct the vortices with large lifespan and/or sheets of vortices into the vehicle's drag- producing volumes.

the incremental costs of operating that route

The present embodiments also reduce the effect of the trailing edge tip vortices and re-streamlines the flow shedding off the sides and top of the semi-trailer.