He tells his colleagues that when drawing the image of a forest, a concept artist should work as a natural scientist, researching information including the species of plants, the longitude and latitude of where they grow.
On July 20 we cut the Tropic of Capricorn at longitude 105 degrees, and by the 27th of the same month, we had cleared the equator on the 110th meridian.
Their new longitudinal prowess gave British sailors an advantage when it came to navigation and was not a small reason their flag came to dominate the globe.
There the captain fixed his position and used a chronometer to calculate his longitude, which he double-checked against his previous observations of hour angles.
There is one special thing you might notice: it's at exactly zero degrees longitude and zero degrees latitude — and that's the key to why computers think this particular patch of ocean is a busy place.
If it's 3: 00 AM in London, and where I am the clock says it's only midnight, I know that I'm three earth rotation hours away from London and that means 45 degrees of longitude.
The Pacific Ocean extends north to south between the two polar circles and east to west between America and Asia over an expanse of 145 degrees of longitude.
So in 1714, these misadventures had proven just too much for the monarchy and the British government set up a prize, 20,000 pounds to anyone who figured out how to accurately find longitude at sea.
These vertical ones are longitude which tell you how far east or west you are from this line at zero degrees longitude, which slices right through a little burrow of London called Greenwich.