Some errors still taught in secondary schools

It may sound a little bit misleading,
because this problem is not only limited
to Nigerian schools. It’s a worldwide
phenomenon occasioned by teachers,
lecturers and instructors who make no
effort to update themselves and add to
what they already know. These lies – at
least some of them – were facts at some
point in time, but things have since moved
on. Truths become lies as new discoveries
are being made.
Here are 16 lies that are still dished out the
world over even as you read this:
There are six classes of food: I was taught –
and I know most of you were taught – that
there are 6 classes of food, namely,
proteins, carbohydrates, vitamins, fats and
oil, minerals and water. It is no longer the
case. Officially, there are now SEVEN classes
of food: proteins, carbohydrates, vitamins
(or vegetables), fibers, fats and oil, minerals
and water. Fiber is derived from plants and
it was initially left out by nutritionists
because it seemingly does not add any
nutrient to the body. What fiber does that it
alters the way our gastrointestinal tract
absorbs food. Fiber itself is indigestible; it is
broken down in the large intestine not by
the body’s digestive system, but by the
trillions of bacteria that live there.
There are nine planets in the solar
system : Astronomers are regularly
discovering new planets all over the
universe. However, the number of planets in
our own solar system has been reduced
from nine to eight. This is due to the
declassification of Pluto as a planet. Pluto
was officially downgraded by astronomers
at the 26th General Assembly of the
International Astronomical Union which
was held in Prague, Czech Republic, in
2006. It is now a dwarf planet.
Astronomers found out that it is merely a
huge ball of ice and rock orbiting the Sun in
an area known as the Kuiper Belt. The
Kuiper Belt is located beyond the planet
Neptune (which is now the farthest planet
in the solar system) and it contains over
70,000 icy objects similar to Pluto. Pluto
happens to be one of the biggest of these
icy objects, but it’s not the biggest. The
biggest is Eris. Eris, a dwarf planet, is the
largest object in the Kuiper Belt. It’s about
25% more massive than Pluto.
There are four oceans: That was until the
year 2000 when the International
Hydrographic Organization concluded that
a distinct body of sea that completely
surrounds the continent Antarctica will be
the Earth’s fifth ocean. The exact
geographic coordinates of the salty water
are yet to be agreed upon, but most
sources will tell you that it lies to the south
of Australia, New Zealand and the tip of the
South American continent.
There are three states of matter: There are
several states of matter, in fact. According
to physicists, in addition to solid, liquid and
gaseous, plasma can be observed in
everyday life. Actually, scientists claim that
plasma is the most abundant form of
matter in the universe, because most of the
stars, including our own Sun, are in a
plasma state. Other states of matter include
the neutron-degenerate matter, Bose-
Einstein condensates, liquid crystals,
superfluids, quark-gluon plasmas, quantum
hall state, supersolid, string-net liquid,
superglass and dark matter. But these
forms of matter are very rare and some of
them have not been observed, but are
believed to exist.
Humans have only five senses: It turns out
that sight, hearing, touch, smell and taste
are not the only sensory responses human
beings exhibit. Human sensory receptors
can also respond to pain (nociception),
changes in temperature (thermoception),
changes in balance (equilibrioception),
position (proprioception), magnetic
direction (magnetoception) and the
passage of time (chronoception).
Humans evolved from apes: This is a great
lie and misconception that has been here
with us since the day Charles Darwin
published his controversial “On the Origin
of Species by Means of Natural Selection, or
the Preservation of Favoured Races in the
Struggle for Life.” According to this well-
known biological framework, human
beings and the modern-day apes evolved
from a single, now-extinct ancestor. As time
passed by, these ancestors of ours began to
evolve differently based on climatic,
nutritional, geographical and social
changes.
Mount Everest is the highest place on
earth :
Mount Everest is the highest
mountain in the world quite alright, but it’s
not the part of the world that is closest to
outer space. Here how it works: the Earth
does not have a perfectly round structure
like the world globes you’ll find in most
schools. Geographers call this anomaly an
oblate spheroid, which means that the
earth has a bulge towards the equator. As a
result of this bulge, places close to the
equator are.

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