Page 70 - MS Magazine 2025

MIND-CONTROLLED PROSTHETICS

Imagine being able to move an artificial arm simply by thinking about it—no buttons, no switches, just
your thoughts. That is precisely what mind-controlled prosthetics make possible. These remarkable
devices are giving individuals who have lost limbs or who are unable to move parts of their body the
chance to perform everyday tasks once again—like holding a cup, writing a note, or even giving
someone a hug.
The technology works through tiny sensors that detect signals from the brain. When you think about
moving your hand, your brain sends out electrical impulses. These sensors capture the signals and
transmit them to a computer, which in turn instructs the prosthetic limb on how to respond. This entire
process happens in a fraction of a second.
Some advanced prosthetics can even send sensations—such as pressure or touch—back to the brain,
making the artificial limb feel more natural. This is a tremendous step towards making prosthetic limbs
function and feel like an integral part of the human body.
What is truly inspiring is how this fusion of biology, technology, and the human spirit is transforming
lives. People who once believed they would never move freely again are now opening doors, holding
hands, and pursuing their dreams. It is not just science—it is a second chance at independence.

By: Tanish Ahanthem,
XII B, 7547

The Physics of Space Travel
HOW ROCKETS REALLY WORK?

Space travel might sound like pure magic, but behind it lies pure physics.
Every rocket you have seen—whether launching a satellite or carrying astronauts—operates on one
fundamental principle: Newton’s Third Law of Motion.

It states, “For every action, there is an equal and opposite reaction.” Thus, when a rocket burns fuel and
expels hot gases downwards, the rocket itself is propelled upwards. This is the essence of thrust.
However, escaping Earth is no simple feat. To break free from the planet’s gravitational pull, a rocket
must reach a speed of approximately 11.2 km/s—known as Earth’s escape velocity.

Achieving this requires a tremendous amount of fuel, which is why rockets are often enormous and
carry their fuel in multiple stages.
In space, where there is no air, wings and propellers are ineffective. Instead, rockets adjust their
direction using small thrusters and the principle of conservation of momentum—somewhat like how a
skater changes direction by shifting their weight.
Interestingly, once in orbit, a spacecraft does not need to keep firing its engines to remain there. It is
continuously falling towards Earth, but because of its high speed, it keeps missing the ground. This
phenomenon is called free fall, or being “weightless.”
From liftoff to orbit, space travel is powered by science—and the human dream to venture beyond what
we know.

By: Angel Jain,
XII A, 7089

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The Mapsian 2025 Page No. 67