Please, Help

Dear Friends and Readers,
I am writing to ask for your help to support the medical treatment of my younger brother Pierre Roring. He is suffering from a life threatening cancer on his neck. The tumor is very big and he cannot eat solid food.


We are trying to raise fund through gofundme for him so that we could send him to a hospital that has got modern equipment to treat cancer patients in a big city in Indonesia. Here is the link for donations:
https://gofund.me/f46d3cd4
We also ask for your prayer to God to help and heal Pierre in his fight against cancer. You could also help by sharing this message to your friends and other people.
Thank you for your donation and message of supports.
Best Wishes,
Charles Roring

Birding, Snorkeling, and Wildlife Watching Journals from Tropical Rainforest of West Papua and other regions in Indonesia

Please, support this blog by ordering art products in the form of t-shirts, mugs, cell phone case, tote bag, spiral notebook and etc. from the following :

Monday, July 6, 2009

Ship Displacement and Capacity Limitation

by Charles Roring in Manokwari of West Papua of Indonesia


Ship is the product of human engineering. It is intended to transport goods and people from one island to another. Ships support the progress of human life. People trade goods to every corner of the world with ships. In the same way, people also go around the world with ships. The invention of airplanes does not replace ships as the major transporter of goods and to some extend people.



ambulu10.jpg


The competition in business forced ship designers or naval architects to build ships that are efficient. Therefore, they tend to design and construct ships that are bigger both in displacement and passenger capacity. Ships that carry more goods and people are effectively more efficient than small ships.



pic2.jpg


But the construction or the design of ships should not only be seen from efficiency and dead weight tonnage. There are still other factors which ship-designer and shipbuilder have to think before a final design is approved for construction. Two of them are ship's safety and environmental assessment impact. For instance, if the newly designed ship is an oil tanker with a dead weight of 500,000 ton then it will not be wise to build it due to its potential environmental impact. This giant oil tanker might face an accident at sea. Oil spill from such tanker can be difficult to overcome due to the massive amount of oil which has to be contained and collected from sea surface. If 500,000 ton of crude oil covers the surface of the sea, it will block sunlight, and choke a lot of marine animals.



1-costa-luminosa.jpg


Such consideration also applies to passenger ships. Cruise ships that are designed with passenger capacity of more than five thousand people might not be wise to be constructed. It might be an efficient transporter but it will be dangerous if the ship face similar accidents to Titanic. Passenger safety should also be taken into account when designers want to decide the carrying capacity of a bus, a train, and most importantly a passenger airplane. Airplane that carries more than 500 people will be potentially dangerous for the passengers if it crashes. There will always be a possibility of accident at sea, land and air to all man made structures no matter how perfect or how advanced they have been designed and constructed. Also read: Traveling with ship; and Propeller Rake and Blade Thickness Diameter Ratio

No comments: