Page 43 - final Nai Udaan september 2024

Fun facts on Water
Fun Facts

Hot water freezes A laser can get trapped in water
faster than cold
water A cool thing
called “total internal reflec-
This may seem counterintui- tion” happens when you
tive, but it’s called the point a laser beam at a jet of
Mpemba effect. Scientists now flowing water. To demon-
believe this is because the strate this phenomenon,
velocities of water particles PBS Learning Media
have a specific disposition released a video in which a
while they’re hot that allows laser is positioned on one
them to freeze more readily. If side of a clear tank of water. When the light travels through the
proven correct, this finding water, it is slowed by the heavier particles in the water, effectively
could also be applied to every- “trapping” the laser beam in the water. Even as the water flow is
day things, like cooling down gradually decreased, the laser beam remains contained inside the
electronic devices, according jet, until it eventually disappears when the water is turned off
to research out of Universidad completely. Speaking of lasers, did you know that your iPhone can
Carlos III de Madrid. be hacked with a laser pointer? You do now!

Earth’s oxygen is produced by the ocean

Have you ever stopped to think where oxygen comes from? Your first thought may be a rain-
forest, but here’s a cool science fact for you: We can thank plant-based marine organisms for
all that fresh air, according to the National Oceanic Service. Plankton, seaweed, and other
photosynthesizers produce more than half of the world’s oxygen. While we may know the
answer to this question, scientists still can’t explain these other ocean mysteries.

Animals use Earth’s An Estimated 50% of Child Malnutrition Linked to Unsafe Water
magnetic field for ori-
entation Malnutrition occurs when a person’s diet doesn’t incorporate
enough proper nutrients. When a child suffers from diarrhea
Lost land illnesses caused by unsafe water, they do not absorb the
animals may not vitamins and minerals needed to thrive. Malnourished
be able to find children may be shorter or thinner compared to healthy children
their way in the same age group.
home, but sea A cloud can weigh around a million pounds
animals might. According
to the U.S. Geological Your childhood dreams of floating on a weightless cloud may not
Survey (USGS), “there is withstand this science fact: The
evidence that some average cumulus cloud can
animals, like sea turtles Aditi Gupta weigh up to a million pounds,
Shiwansh Singh
Chauhan
and salmon, have the TGT Natural Science according to the USGS. That’s about
5th F, Balvant Ray
ability to sense the Earth’s SKV No. 1, Mehta as heavy as the world’s largest jet
magnetic field and can use Keshavpuram when it’s completely full of cargo and
Vidya bhawan
this sense for navigation.” passengers.