Hello everyone!
My name is Jessica Gutierrez, I am from El Salvador and I
been living in the United States for 10 years.
I work as a Family Support Worker at Riverside Early Head Start and
study Psychology at Boston University. I decided to take this class because it
will be great experiences to know about the Boston Harbor and also to learn
about new thing that we can do as citizens to protect our ocean. I went to
Costa Rica with a Study Abroad program at Bunker Hill Community College for an
Environmental Science class and it was an experience that I will never forget
and hope that this will be added to my favorite experiences.
During our first class I was enjoying our professor stories
and his enthusiasm about teaching us about Boston Harbor.
Our first trip was to the Ladies Bathroom with a question of
figuring out if we fill out the sink of water, and when we drain water out of
the sink is was going to do clockwise or counterclockwise motion. I was in a
group of three people including me and we all decided that the water was
counterclockwise. We noticed that after filling up the sink with water and let
the water drain the water was forming circles in a counterclockwise motion.
The second question was to find out what direction does the
water drain out of a sink in Australia? Why? And how we find out the answer?
According to a YouTube video that water in Australia drain
counter clockwise but I don’t see this as a truthful sources because this video
could be any other part of the planet. By reading more I few sources that talk
about “corioles forces”. It seems that the water drains differently according
to the hemisphere due to the rotation of the earth. “on
a rotating Earth the air keeps getting deflected away from the center which
causes the low pressure system to spin counter-clockwise in the northern
hemisphere (depicted below in the graphic) and clockwise in the southern
hemisphere. In a high-pressure system, air flows out from the center. In the
northern hemisphere, the deflection is to the right, which causes the system to
spin clockwise. In the southern hemisphere, the deflection is to the left which
is why a high pressure system spins counter-clockwise.” (www.wheatherimagery.com) As I read in the Internet the rotation of the earth and the
corioles forces has a lot to do with the rotation of the drain water. If
Australia is in the Southern Hemisphere the water drain in the
counter-clockwise but this is the same answer that I have for the Northern
Hemisphere in United States.
I think science gives us the opportunity to learn and we can
all discover sciences in different ways. Thru this exercise I find out in the
Internet that the water is supposed to drain differently depending in the
country and hemisphere decide the direction of the water to drain but according
to my experience I did not see the water drain clockwise in the northern
hemisphere as supposed to be according the internet information.
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