Evening star., 1937-07-18

half century before anybody made
practical use of them.
The loss OF jobs in the replace
ment of men by. machines and by the
decline of present industries will be
compensated for by the growth of
new industries, but there is no know n
formula by which a balance can be
calculated. Transitions are almost
certain to be attended by great
In the struggles.
The committee lays special empha-
sis on steep flight aircraft" and tele-
vision, Both seem to be near.
Roof Hopper" Of Future.
The former rests on the success
full development of the So called roof
hopper"-an aircraft which will 90
straight up, hover in the air and come
straight down at low speed. 1t now is
represented by such forms as the
helicopter and autogyro. The for
mer. by the way was first devised
by Leonardo da Vinci.
Many technical problems remain to
be solved, says the report, but the
winged horse which can leap into the
air, soar or hover in the skies. and
drop gently on a CONSTRUCTED landing
spot is no chimera-experimen
at least, it has arrived
1t would enable the suburban
dWeller to leave home in the morning
and drop down safely a few minutes
later .on his office roof with none of
the worries of present day traffic
jams. parking, etc. Such aircraft, says
the report. could be housed on roofs
or brought to the lower floors on ele-
vators. They will have much more
freedom OF movement than our pres
ent automobiles, since they can move
in three dimensions instead of two"
1t cautions. however. that while pri-
vate planes by the ten thousands
probably will be used within another
decade, more time doubtless will elapse
before they become serious competitors
OF the private automobile. Types al
ready demonstrated which can land
on any uSable field fold up like a
beetle, and proceed along the high
ways like an automobile to be housed
in the home garage have intriguing
possibilities
Such development. it is stressed.
will have far-rea ching implications in
many lines. 1t will require modifica-
tlons in prevalent types of archltec-
lures. 1t will extend city limits still
further, enable families to go almost
anywhere for week -end vacations, and
bring about perplexing police prob
lens. The future may look forward
to the roof hopper" bandit.
Air transport in general, it is pre-
dicted, will become faster, safer,
cheaper, cover greater distances and
gain in popularity. Its development,
however, will be along lines OF its
present structure and it will remain
in the hands of experts. At least 20
means Of overcoming its greatest
hazard, fog. now are being studied
1t will result in bringing the world
much closer together and may bring
W perplexing diplomatic problems.
Mails to Be Faster.
Says the report: Tours and brief
oversee visits, especially by those who
prize their time more than money,
Will be particularly encouraged. The
possibility Of getting a letter from a
distant home regularly in two DAYS
Will encourage ordinary tours and
business travel Today, with the in
frequency Of mails across the Atlantic.
the time usually required is much
more than the seven days nominally
requisite"
Even more far-reaching are the
prospective effects Of television. To-
day this is experimentally practical.
A fairly clear picture Of a current
eVent-a foot ball game, for example
can be transmitted into the home on
a screen large enough 50 that it can
be enjoyed by the whole family.
Ielevision can reasonably be antici-
pated. perhaps within the next dec
ade, although there are tremendous
difficulties in the way
One is the expense. There is nat
ural reluctance to undertake this while
the technique remains so highly ex-
perlmental and while a sudden de-
velopment may force the junking of