Lighthouse of Alexandria

The lighthouse of Alexandria or the pharos of Alexandria, Greek was a tower built in the 3rd century BC between 285 and 247 BC on the island of pharos in Alexandria, Egypt to serve up as that port’s landmark and later, its lighthouse.

With a height variously predictable at between 115 ~ 150 meters (377 ~ 492 ft) it was amongst the tallest man-made structures on Earth for many centuries, and was recognized as one of the Seven Wonders of the World by Antipater of Sidon. It may have been the third tallest building after the two Great Pyramids (of Khufu and Khafra) for its whole life. Some scholars estimate a much taller height more than 180 meters that would make the tower the tallest building up to the 14th century.

Seafood

It is one of the sea animals that are serving like food or fit for eating, this normally include seawater animal like fish and shellfish. By adding together in North America though not generally in UK, the word seafood is as well helpful to attach animal from fresh water and all apt for eating aquatic animals are together referred as the seafood.

The Edible seaweeds are almost not ever considered seafood, even though they come from seawater and are normally eaten around the world. The harvesting of seafood is well-known as fishing and the farming of seafood is known as aquaculture or simply fish farming. Seafood is the starting point of protein in many diets around the world.

Credit rating

A credit rating assesses the credit worthiness of an individual, corporation, or even a country. Credit ratings are considered from financial history and current assets and liabilities. Typically, a credit rating tells a lender or investor the probability of the subject being capable to pay back a loan. However, in recent years, credit ratings have also been used to adjust insurance premiums, determine employment eligibility, and establish the amount of a utility or leasing deposit.

A poor credit rating indicates a high risk of non-payment on a loan, and thus leads to high interest rates or the denial of a loan by the creditor.

Swaption

A swaption is an option granting its owner the right but not the obligation to enter into a fundamental swap. Although options can be traded on a diversity of swaps, the term "swaption" typically refers to options on interest rate swaps.

There are two types of swaption contracts:

A payer swaption gives the owner of the swaption the right to come into a swap where they pay the fixed leg and obtain the floating leg.
A receiver swaption gives the owner of the swaption the right to enter into a swap where they will receive the fixed leg, and pay the floating leg.
The buyer and seller of the swaption agree on:

The premium (price) of the swaption
the strike rate (equal to the fixed rate of the underlying swap)
Length of the option period (which frequently ends two business days prior to the start date of the underlying swap),
the term of the underlying swap,
Notional amount,
Amortization, if any
Frequency of settlement payments on the underlying swap.