Effective Safety Measures for Cyclones and Tornadoes Video Lecture | Class 7 Oxford Science: Chapter Notes, Worksheets & Tests

hello friends this video on wind storms
and cyclones 5:13 is brought to you by
example calm no more fear from example
so I hope that now you have realized the
problems that arise when winds flow with
very very high speeds because the basic
reason still remains that high speed
winds are always accompanied by
low-pressure areas and the difference in
the pressure areas that causes more and
more air to flow which in turn causes
huge destruction right okay so now what
do you realize is the speed of the wind
is one important thing that needs to be
controlled so the speed of the wind is
too much it can cause problems now since
these are natural phenomenon we really
do not have any control on them so what
can we do to protect ourselves to
protect likely to protect other living
organisms to protect the houses
buildings everything so what can we do
one good idea would be to predict when a
cyclone can happen when a tornado can
happen now how can we predict all this
so for this we need to have some idea of
the speed of wind so measuring the speed
of wind becomes something which is very
very important because wind speed
recommends a lot of things so therefore
now we will talk about is there any way
we can measure wind speed yes there is
so there is a device for an anemometer
and this device is used to measure wind
speed so any moss is a green Greek word
animals is the Greek word which means
wind so that is why the device is called
an emu meter so roughly this is how an
anemometer looks like however there are
many different varieties of anemometer
and they have different structures so
but basically what they do is they have
three cups which spin in wind so here
you can see these are the three cups one
two and three so it's like three similar
structures which are arranged and it is
capable of rotating like this so they
spin as the wind blows now as they spin
the wind speed is displayed on an LCD
display so there is a display so this is
a very basic structure so you do not
have the display bones about that but
when you actually look at an anemometer
it will have a display LCD display where
you only able to see the wind speed
there will also be a vein which Alliance
which displays the direction of the wind
so this is the vein which shows the
direction of the wind so so we get to
know that the wind is moving in which
direction so that will help us to
predict that okay the wind if we feel
that the wind speed is very high and it
is moving in a specific direction for
the past couple of days so that might
help us to get cos an idea about when it
can go in the future days right
so so that means this device is of great
help
now some Tanima meters also look like
this ready and here you see the LCD
display and inside this LCD display you
can actually measure the wind speed now
let us talk about some of the safety
measures which we should state now that
we know that winds can cause distraction
thunderstorm cyclones these recalls huge
destruction so what can we do in order
to protect ourself to keep ourselves
safe so one thing that can be done is
that needed to that is needed to be done
this cyclone warnings to be communicated
now if we inform everyone beforehand
that a cyclone might occur in this
particular area so people of that area
will remain aware they will know that
okay something like this might happen so
we should stay safe
we should prepare ourselves to move to
or to migrate to a safer place so that
minimum harm happens so that means
people can prepare themselves not only
that cyclone shelters can be created
what are these cyclone shelters now as I
said that normally the houses and
buildings not everything
is constructed which our cyclone
resistant
however cyclone resistant buildings can
also be created so these buildings will
have the power to withstand the
intensity of cyclone so even if the
cyclone is of higher intensity the
building will be strong enough to
withstand it so these kind of cyclone
shelters should be created now some of
the important points which need to be
remembered when a cyclone shelters are
created are they should be located very
far away from large trees communication
towers they should also be located far
away from the host line and also away
from the storm tank areas so that's how
all necessary conditions should be
satisfied and only then the cyclone
shelter should be created but creation
of cyclone shelters would be possible
only when the warnings have been
communicated beforehand so that the
appropriate authorities or organizations
do have enough time so that case so that
they can create the cyclone shelters
stay away from water in cyclone heat
areas not why do we need to stay away
from water because whereever cyclone
whichever area is being hit by cyclone
so that angel is also being hit by you
know height diodes of the sea so flood
has already occurred there so because of
that when I say flood I mean huge amount
of water would have entered that region
because of which the water would have
being contaminated so drinking water
should be stored beforehand so that
people should not do not consume the
contaminated water and then fall in so
that's one rule secondly water should be
kept away from all kinds of electrical
circuits because when there is so much
of water around so what happens is a lot
of cables wires open circuits might also
have come in contact with water so it is
very important to stay safe and not to
touch unnecessarily any wets that keeps
or switches or plugs because that can
give electric shock and it can even
become fatal in that situation so
therefore it is a
that people should not unnecessarily
come out of their houses and create a
chaos they should try to help each other
they should cooperate and at the same
time they should do things which are
safe for themselves and then try to save
others thank you
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