Well,
its sound quite unbelievable, that your vehicle is moving up at a speed
of 20 KM/ hour whiles its ignition off? Off course, you’d be amazed
with the start of this story. Yes, it if fact, that magnet mystic can be
observed while you’re traveling to Leh-Ladakh, a part of Jammu &
Kashmir. Every year, thousands of tourist visit Ladakh to witness the
mystery phenomenon of the 'Magnetic Hill' where it is said vehicles are
pulled uphill automatically. The mysterious Magnetic Hill located on the
Leh-Kargil-Baltik National Highway, 30 kilometer away from Leh-Town at
an elevation of 14,000 feet above sea level. On its south side, Indus
River flows, originates in Tibet and goes into Pakistan. The magnetic
hill has become a popular attraction for domestic tourists on car
journeys. The road alignment with the slope of the background can give
the illusion that vehicles are able to drift upwards. Travelers normally
park their vehicles in the white-marked box on the road to witness the
phenomenon.
Therefore,
Magnetic Hill is a site, where the layout of the surrounding land
creates the optical illusion that a very slight downhill slope appears
to be an uphill slope. Therefore, a car left out of gear will appear to
be rolling uphill. There are hundreds of gravity hill locations around
the world. The slope of gravity hills is an optical illusion, although
several others may claim natural or even supernatural forces are at
work. The most important factor contributing to the illusion is a
completely or mostly obstructed horizon; without a horizon, judging the
slope of a surface is hard as a trustworthy reference is missing.
Objects such as trees one would normally assume to be more-or-less
perpendicular to the ground perhaps actually be leaning, offsetting the
visual reference. The illusion is alike to the famous Ames room, in
which balls can also appear to roll against gravity. This is a strangely
common illusion that is found in various locations around the world.
Generally it is a stretch of road in a hilly area where the level
horizon is obscured. Objects such as trees and walls that usually offer
visual clues to the true vertical perhaps leaning slightly. This creates
an optical illusion making a slight downhill look like an uphill slope.
Thus, objects could appear to roll uphill, and sometimes rivers even
seem to flow against gravity. Although there are quite a lot of things
that empower us to sense which way are up. Thus, the balance mechanism
in our inner ears is one system we have, but visual clues are also vital
and can be superseding.
In one day, five undergraduate (all were 2nd & 3rd
Year of Mechanical engineering) students conducted investigation and
their research verifies gravity does the trick of “pulling' vehicles
uphill”. They went there to know what exactly happening at this place.
They investigate by using magnetometer in various different sites along
the hill and made efforts to check the scientific accuracy of the
claims. Therefore, if someone imagines that a massive bar magnet
underneath our feet and the field produced by that magnet is what we
have measured at the hill. However, earth's surface magnetic field
differs from place to place, mostly depending upon the magnetic
properties of the soil or rocks. Usually, the magnitude of the earth's
magnetic field is different at the surface from 25 microtesla to 65
microtesla. The magnetic field of the earth interacts & differs not
because of magnetic properties of the soil, but at a high altitude, this
can be affected by space weather as well. Henceforth the student team
conducted many experiments; first to measure the road magnetic intensity
and then the Magnetic Hill itself and also at nearby hills. We’ve
observed relatively high magnetic intensity readings and found from the
data that it fluctuates at comparatively higher rate at other places
closer to the sea level. However, the magnetic intensity generate by the
refrigerator at home is about 100 T which is not too strong to
influence any motion. Hence, we measured the highest magnetic intensity
of about 60 microtesla which is about a million times weaker than the
strong magnet found in the refrigerator or likewise. Hence, it is
physically impossible for the magnetic field intensity measured at the
hill to produce sufficient force to have any accelerating effect on
automobiles. The magnitude of magnetic field in upward direction is
relatively fluctuating. But again, this is not strong enough. Thus, the
claims such as a turbulence experienced by planes, in all odds, are
caused by wind and air molecules which rise steeply due to the mountain
terrain which reasons rapid cooling and pressure variations which give
rise to various weather anomalies. We were not able to find any evidence
of magnetic interference with the flight instruments.
We
believe the geographical location of the hill, at a high altitude of
about 14,000 feet, confirms that a suggestively high dosage of radiation
is received. According to our records, Leh receives the highest
radiation for any place on Earth; hence the effects are also noteworthy.
So we can attribute the fluctuations in magnetic intensities to the
geomagnetic interactions with radiation. In support of the above, we
observed noticeable fluctuations of magnetic fields especially during
the day, relative to the night at the same place. The team conducted
experiments with a bike and observed that the bike reached a speed of
about 22 km/h on the first attempt and 19 km/h on the second. The
average experiment was reported around 20 km/h. The magnetic intensity
variation along the length of the bike, we have found that it doesn't
vary and remains constant. However, seeing a possibility that the bike
can be attracted by Magnetic Hill, the magnitude of the magnetic field
along the bike should change and noticeable difference in the magnitude
of magnetic intensity in the front of the bike and the rear.
However,
we didn't find anything as such. So, the magician here is the gravity.
We’ve also observed that the terminal speed reached by the automobiles
irrespective of its size is about 20 km/h on an average. Henceforth
automobiles are influenced by gravity. There’s a negative gradient,
though very less in magnitude, which affects the body to slide under the
influence of gravity. While the other contributing factors to the speed
of the automobile are gusts of wind which are recognized to reach up to
15 km/h. Therefore, the so called “Magnetic Hill Effect” observed, is
not gravity-defying as claimed but in fact due to gravity coupled with
minor influences from its geographical position and altitude. But we do
admit that the magnetic intensity is fairly higher but within the normal
range hence nothing unusual is to be assumed. Although, tourist
visiting the place claim to experience some sort of an influence of the
magnetic field. Though, we are not sure whether it is a psychological
illusion being at such high altitude..Source: Gconnect.in & Wikipedia and CP
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