Basic Geography
What is latitude?
This measures how far north or south a place is.
What is the Sun?
Sailors measured the angle of this object above the horizon at noon.
What is the 18th century?
The century when countries expanded trade around the world.
What is a carpenter and clockmaker?
John Harrison’s profession before solving the longitude problem.
What is the Lunar Distance Method?
This method used the Moon as a clock to measure longitude.
What is the Equator?
This line is the natural starting point for measuring latitude.
What is longitude?
This measurement tells how far east or west a place is.
Who is King Charles II?
The king who founded the Royal Observatory.
What is H1?
The first successful sea clock created by Harrison.
What is time?
Longitude can be calculated using this measurement.
What are lines of latitude?
Imaginary lines that run parallel to the Equator.
What is one hour forward?
For every 15 degrees east traveled, local time changes by this amount.
What is 1714?
The year the British government offered a prize for solving longitude.
What is a chronometer?
The special sea clock used to measure longitude accurately.
What are the North and South Poles?
The two poles that the Prime Meridian connects.
What is the Prime Meridian?
The imaginary line used as the starting point for longitude.
What is inaccurate time on ships?
The main problem sailors had when measuring longitude.
What is £20,000?
The amount of prize money offered.
Who is William Harrison?
Harrison’s son who tested the clock on a voyage to Jamaica.
What is H4?
The clock that looked like a large watch made by Harrison.
What is Greenwich (London)?
The Prime Meridian currently passes through this city.
What are waves?
The motion of this made clocks inaccurate on ships.
What is Barbados?
The place where ships sailed to compare longitude methods.
What is 1773?
The year Harrison finally received part of the prize money.
What is measuring longitude at sea?
The problem Harrison tried to solve for sailors.