Title: "Some properties of superthin and superlong gravitational
flux tube solutions in 5D Kaluza-Klein theory"
The properties of the wormhole like solutions in 5D Kaluza-Klein
are discussed. These solutions with electric and magnetic are filled.
The properties depend on the relation between these fields.
If electric field is approximately equal to magnetic field
the corresponding spacetime has a central part which
is like to a flux tube filled with these fields. The length of such
depends on the relation between E and H and can be arbitrary
long. The cross section can be also arbitrary small and can be
choosen in the Planck region. Such gravitational flux tube is
similar to a "string" attached to 2 D-branes.