Physical Address
Suite 5, 181 High Street,
Willoughby North NSW 2068
Gold, silver and other precious metals are weighed in troy ounces rather than grams or the typical avoirdupois ounce. The troy ounce is said to derive from a weighing system developed in Troyes, France, during the Middle Ages. A troy…
Even though most people believe that rubber’s first uses appeared in 19th century Europe, scientists discovered that in 1600 B.C., ancient Mesoamericans added the juice from morning glory species Ipomoea alba to natural latex from the Castilla elastica tree to…
The harp seal is a distinctive-looking pinniped (the group of marine mammals including seals, sea lions and walruses) native to the high-latitude waters of the Arctic Ocean and North Atlantic. Three major populations, or stocks, are typically defined: one breeding…
The three main cycles of an ecosystem are the water cycle, the carbon cycle and the nitrogen cycle. These three cycles working in balance are responsible for carrying away waste materials and replenishing the ecosystem with the nutrients necessary to…
The carrier pigeon is a domesticated rock pigeon (Columba livia) which is used to carry messages, while the passenger pigeon (Ectopistes migratorius) was a North American wild pigeon species that went extinct by 1914. Carrier pigeons are historically important, as…
Our five senses are our connection to the outside world. They send messages to our brain, which interprets the messages and perceives what is around us. A majority of the information that our senses take in is never recognized by…
You can calculate the height of a structure too tall to measure directly, such as a flagpole or a building, by geometric or trigonometric methods. In the former case, you compare the shadow of the measured structure to the shadow…
The Texas Instruments TI-89 is a popular graphing calculator, especially for advanced high school and college math courses. This calculator has dozens of settings and options to allow users to make the calculator as easy to use as possible for…
It’s a hot summer day and you want to make yourself a nice glass of lemonade. You add some ice to your drink, and the lemonade spills over! But your friend, who added ice to their drink before pouring in…
Property is broken down into lots. These lots are most commonly rectangular in shape. Of common shapes, only a rectangle ‘s area is calculable by measurements of only the perimeter of the lot. Determining the acreage of a lot of…
