A device with a free floating magnet that points north.
What is a compass?
The 4 hemispheres of the earth.
What are the northern, southern, eastern, and western hemispheres?
The man who solved the main navigation problem of the 1700's by creating chronometers for sailing.
Who is John Harrison?
Clocks on ships used this to mark the time.
What is a pendulum?
The direction you would travel if you turned towards 180 degrees.
What is South?
The point at which the North star in the sky looks like it's on the horizon when using a sextant.
Where is the equator?
Parallel lines that tell you how far north or south you are
What is Latitude?
The main navigational problem for explorers that resulted in many shipwrecks, lost boats, and lost lives AND the Queen of England was willing to pay 20,000 pounds to solve.
What is longitude?
If it's noon on the ship and midnight at home how many degrees have you traveled?
What is 180 degrees?
The name of the northernmost point of the Earth.
What is Geographic North / True North?
Sextants measure this to determine their latitude.
What is the height (or angle) of the North star over the horizon?
Lines that run from the north pole to the south pole and tell you how far east or west you are
What is Longitude?
The name of the point to which Earth's magnetic fields point a compass.
What is Magnetic North?
In one hour the earth rotates this many degrees.
What is 15 degrees?
The direction you would travel if you traveled toward 300 degrees on a compass.
What is Northwest?
The point at which the North star in the sky looks like it's right above you when using a sextant.
0 degrees line that divides the northern and southern hemisphere
What is the Equator?
The education level and occupation of the man who solved the longitude problem.
What is a self-taught (uneducated) carpenter?
John Harrison's Chronomoter replaced a pendulum with this.
What is coil springs?
The direction a compass needle points, determined by Earth's magnetic field.
What is Magnetic North?
The method of calculating longitude involving dropping a rope with knots into the water and a timer.
What is a chip log?
0 degrees line that passes through Greenwich
What is the Prime Meridian?
The type of birds used by early navigators to help them find land.
What is ravens and frigate birds?
What is centrifugal force?
The direction you would travel if you traveled toward 125 degrees on a compass.
What is southeast?