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Super Moon, not Superman, the rescuer from the Suez Canal ship Ever Given.
On March 30, Facebook posted a post in the post of astronomy specialist Dr. Matipon Tangmatitham. About Full Moon Moon near Earth Assisting the merchant ship Ever Given adjacent to the Suez Canal. It paralyzed more than half of the world’s commerce and shipping. During the past week, will anyone know behind the scenes how to help the ships adjacent to the Suez Canal? In fact, it is the “Supermoon” phenomenon.
A boat attached to the canal, who will you call to help? We do not call superman, but supermoon!
Recently, many people know about the Ever Given merchant ship that was stranded in the Suez Canal. It paralyzed more than half of the world’s commerce and shipping. With a ship size of over 400 meters and a weight of 200,000 tons plus speed, the ship sank its hull into the shallow sand. And it makes towing a boat very difficult.
But yesterday (March 29, 2021), after more than six days blocking the Suez Canal, the ship finally broke free.
But you know that yesterday another phenomenon happened, that is, “Supermoon”.
But how are these two events related to each other?
Supermoon or Super Fullmoon is a phenomenon in which two lunar events coincide exactly at the same time: the full moon. With the moon close to the earth
In fact, the entire moon is full. And the moon near the Earth that occurs every month This is because the full moon forms when the moon is opposite the sun. So it happens every 29.5 days, but the moon’s orbit is elliptical. Therefore, there is a near-far distance from the Earth, which changes according to its orbit, which takes 27 days. As a result, the two periods (called the Sinaordic period and period) are not the same, causing the two phenomena to overlap. . But they will match each other again about every 14 full moon cycles. And yesterday was one more day in which these two events coincided.
It turned out that these two events were very coincidental. Trying to retrieve the Ever Given from the Suez Canal. This is because the moon has a direct effect on the tides, and the appearance of Supermoon is the case that allows the greatest tidal force.
The tidal force It arises from a force called the tidal force. What is gravity? Because gravity will change with distance. The part of the Earth near the Moon receives more gravity from the Moon than the center of the Earth. Liquids tend to collect closer to the moon. Water Meanwhile On the opposite side, the Moon receives less gravity from the Moon than the center of the Earth. Water in the area opposite the moon is comparable to being in an area that is falling at a higher rate. So take a higher level Causing tides twice a day
But apart from the moon Another celestial object that also sends tidal force to Earth is the Sun, although the Sun is significantly more massive than the Moon. But the sun is further away than the moon. The tidal force coming from the sun is weaker than that from the moon. With only about 1 in 3 strength
But what makes it even more complicated is the tidal force of these two bodies is not always in the same direction. It is like two children trying to pull a rubber band in different directions. As long as the force of the tides of the sun and the moon complement each other. A phenomenon called “spring tide” occurs, which will cause the highest tide, the low tide. But if the two tidal forces act in a perpendicular direction the tidal force will somehow compensate. This causes a phenomenon known as “neap tide,” which is when tide levels are different from the lowest average.
The phenomenon of “water” occurs when the sun and the moon. In the same direction Or exactly the opposite, for example on a full moon when the Moon is exactly opposite the Sun. Also, because the distance from the Moon to the Earth is constantly changing because the Moon’s orbit is an ellipse. The moon will transmit the greatest tidal force to Earth when it is closest to Earth.
Which of these two conditions Happened on March 29, because it was a supermoon phenomenon that led the crew to rescue a vessel in the Suez Canal. Try to risk it at the highest tidal levels during this time. When trying to recover the last ship
With a water level greater than 2 meters during the highest tide Thinking about the size of the boat of 400 × 56 meters, we find that this 2 meter rise in water is equivalent to an additional 45,000 tons of buoyancy force On supermoon days, there will no longer be a day when ships can be towed. Which would have to resort to alternatives such as lifting containers from the ship. Before trying to drag it again
But at the end of the day, Ever Given was able to get back up. And finally, the Suez Canal can be used again.
Of course, all of this happened. It is not just the result of the supermoon. But it arose from the constant work of solving the problems of the rescue team from the excavation of the channel under the ship. Dig with a skid steer loader (Which we tend to make memes of) the many dragons that push
But one that cannot be denied at all is that the astronomy team’s knowledge of the supermoon and tide assures the team that it can use all available resources. At the most efficient time possible
Compiled by: Dr. Matipon Tangmatitham – Astronomy Specialist Dr.
Reference / read more:
[1] https://www.wsj.com/…/how-a-supermoon-helped-free-the…
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