Test 1 Flashcards
What were some reasons behind colonization of North America?
Some wanted to make money or set up trade with their home country while others wanted religious freedom
Define Dead (from deduced) reckoning
A calculation determined by using a previously determined position on a chart, and advancing that position based on known or estimated speed over a set amount of time.
Define Astrolabe
A helpful tool to measure the angle between the sun or a star and the horizon at a specific time of the day or night.
Define Quadrant
Measures the angle of the sun over the horizon at noon, and then use that measurement to calculate his vessel’s latitude
Susan Constant
The largest of 3 ships of the English Virginia Company on the 1606–1607 voyage that resulted in the founding of Jamestown in the new Colony of Virginia
Godspeed
The second largest of the 3 ships sent to the new world (Jamestown). A 40-ton fully rigged ship estimated to have had a hull 68 feet (21 m) in length. As part of the original fleet to Virginia, leaving on December 20, 1606, she carried 39 passengers, all male, and 13 sailors.
Discovery
A small 20-ton, 38-foot long “fly-boat” of the British East India Company, launched before 1602. It was one of the 3 ships on the 1606–1607 voyage to the New World (Jamestown) for the English Virginia Company of London.
Mayflower (Plymouth)
An English ship that transported a group of English families, known today as the Pilgrims, from England to the New World in 1620.
Cross Staff
Also known as “Jacob’s Staff” was a navigational tool used to measure the angle between the horizon and a celestial body such as the sun or stars.
Declination tables or astronomical charts
There are no roads in the sky, so knowing an object’s coordinates is crucial to finding it in your telescope. Declination corresponds to latitude and right ascension to longitude.
Magnetic compass
Sailor’s most trusted instrument. Chinese were the 1st to develop and use a compass. Used to navigate open sea with no landmarks.
Sandglass or hourglass
Used to measure the time at sea or on a given navigational course
Chip Log
A navigation tool mariners use to estimate the speed of a vessel through water.
Traverse board
A navigation device consisting of a small boardmarked with the four points of the compass with eight holes bored at each point to represent each half hour in a watch and used to peg the courses made by a ship in each half hour.
Lead & Line
a device for measuring the depth of the water as well as obtaining a sample of the ocean floor.
Navigation Charts
Used to measure the time at sea or on a given navigational course, in repeated measures of small time increments (e.g., 30 minutes).
Who made the 1st colonizing expedition to what is now Virginia?
The London Company