And Ellicott actually grumbled that, as he put it, an impertinent young Indian kept moving the minute hand on his clock, which made it impossible to determine longitude . Still, the most effective form of opposition to the survey was armed resistance.And the surveyors eventually encountered a force of hundreds of Seminoles, and as Ellicott put it, they compelled us to relinquish our design and leave the country.
And so I said, well, I've got to use "The Thong Song." So I changed the thong song to apply to doing latitude and longitude , plotting maps. And the song was like-- Geography is so good to us We practice and we learn so much We study that map from front to back
found Antarctica long before long before we did, uh and mapped it with extremely accurate relative longitudes . And that's important because our civilization didn't crack the longitude problem until the mid-18th century. What that meant was that if you're on a vessel sailing
latitude prize the latitude prize was prize that the British government was going to give to the first scientist who could vent a way for working out latitud no longitude the longitude prize is one or the other um it's like people in you the biggest eror is a minus when it should be a plus or longitude which should be
As William Dunbar had put it, this eclipse was to be seen all over Europe and North America, and was thus very important for settling comparative longitudes . Basically, you just figure out the local time where you see the eclipse in all of these different places. Allows you to have a good comparison of longitudes from throughout the whole space where you could see the eclipse.
to the recitation of a single mantra. the problem of longitude with the invention of the chronometer.
Dava Sobel is a former "New York Times" science reporter and a repeated "New York Times" best selling author. Her previous books include "Longitude " about the English clockmaker, John Harrison; and "Galileo's Daughter" about Galileo's older daughter Maria Celeste; and "Planets," which I'm sure you can guess is about earth and her nearest neighbors.
other um it's like people in you the biggest eror is a minus when it should be a plus or longitude which should be latitude the longitude prize he basically was one of the loudest voices for the government to start the longitude prize kind of because he thought he might win it and he never did but that was all about sort of going
And the good thing here is that we can actually use different kernels that are appropriate, depending on the modality here. So for latitude and longitude we just use a cosine similarity kernel, since that ends up taking into account the locations and directions therefore of the trajectories that we end up getting.
We'd like to prioritize nodes that are closer to the zoo. So using longitudes and latitudes, we can easily calculate the straight line distance between any node and our target. We'll order the nodes by their cost, plus this straight line distance.
breakthrough evidenced by by the ancient maps, but particularly a category of maps called the Portolanos, is accurate relative longitudes . This is the Orontius Finaeus map. It shows Antarctica uh right there. Uh and and um this is interesting cuz this map was drawn in 1531.
The market determines the price that it will pay. Fewer have heard of the Longitude Prize.
And so it's hard to do station keeping with your spacecraft, to keep it positioned over a single spot on Mars. But there are two stable positions in longitude , or meta stable positions. So you have to really want to explore the part of Mars that's underneath those two stable positions.
was a sensational opportunity. I wanted to go back to "Longitude ," if you don't mind.
The overriding thing in our discussion-- our end user was Grandma. How do you define latitude and longitude on something that's shaped like a peanut?
This doesn't work because there's no way this could possibly work. But it shows the extent to which this longitude question, right, became this national scientific endeavor, both for astronomers, mathematicians, but also for these tinkers and inventors.
Jefferson had a far more productive exchange with Dunbar, who was, in fact, his most distant correspondent on this. The two fine-tuned a method of determining longitude through lunar altitude observations, which is different than the usual stellar angle observations, which we don't need to get into. But basically, measuring the angular distance from the horizon to the moon and then comparing those observations with those
It's where the Earth squeaks on its axis. It's where all the lines of latitude and longitude converge. And it's a surreal thing to get to the South Pole because you feel like, yes, it's an incredible accomplishment to get there, but you see an actual South Pole Marker.
agriculture for yourself. If you don't know where Svalbard is, I've very helpfully for you, provided the latitude and longitude coordinates that you'd go to. And if you don't know your latitude and longitude coordinates, if you don't know what your address is right here, and therefore, what direction to start heading in, turn to that time and place chapter in the book.
the mountain. So in the exhibition the pieces look like this. We have -- Shasta is on the right and Fuji is on the left. So we got two mountains conquered. Our goal was to go and go and go, So they hide these treasures and they record the latitude and longitude coordinates for them and put them up on a Website. And then other geocachers, and there's thousands of
This is the GPS wall clock. At SparkFun, we were selling GPS modules. And I wanted to show people that GPS gives you longitude and latitude. But a lot of folks didn't realize that it's very accurate time.
comparative longitudes . Basically, you just figure out the local time where you see the eclipse in all of these different places. Allows you to have a good comparison of longitudes from throughout the whole space where you could see the eclipse. Observers from throughout the United States and Spain sent their raw data on this eclipse to Ferrer.
But turning an address into a latitude, longitude was really hard.
The market determines the price that it will pay. And he made the first clock that was accurate enough to give you your longitude at sea.
It was a challenge that was solved right around this moment by a guy named John Harrison, who basically invented a really, really good clock that could be carried on ships. But for the US, finding the longitude at sea wasn't as important as being able to do so on land. After all, they were building this land-based empire.
But all of this data had to be compiled. It had to be calculated and compared in order to figure out things like longitude to comparing observations in different places. And one of the key figures in the United States in interpreting and calculating all of this data was the Spanish astronomer José Joaquin de Ferrer.
And the thing that he introduced here are these lines of latitude and longitude .
of the challenge between organizations trying to control things-- we're going to call this longitude -- and organizations networking.
We're going to call this latitude, longitude and latitude of organizations.
But to put it simply, innovation has longitude and latitude.
do a journey around the world let's just go by latitude and longitude didn't feel right to me or someone said to me why
these different modalities. So for two trajectories that's exactly what we do. We take these measures of similarity over latitude, longitude , altitude, and distance to nearest aircraft, and just take a convex combination, which is depicted here.
this is hurricane latitude this, longitude that.
Ships were crashing all over the place because no one knew their longitude at sea.
They said, "Anyone who can solve this longitude problem: we'll give you a big prize." It turned out it wasn't an astronomer, but a watchmaker who figured out if they could
On the surface, it just looks like a bunch of numbers describing my latitude and longitude .
but actually emerged in this kind of back-and-forth conversation between colonies and metro poles. So for instance, Jefferson and Dunbar developed together a new method of determining longitude on land through astronomy, one that was ideally suited for the US, this kind of land-based empire that the United States was building.
There's this image on the left. There's an inventor named Timothy Clark who sent Jefferson his design for a device for finding the longitude . And the way he explained it is that there would be a plumb line with the weight that what you would fix at a particular longitude .
There's a deep understanding of the fact that data layers are connected by the latitude and longitude .
So this is RA, the angle on the sky across-- it's like longitude , and it's a thin latitude slice,
So the satellite is located at 37,000 kilometers over the equator and at the 0 line longitude .
was a sensational opportunity. Oh, thank you. I used to teach with "Longitude ," and I had to walk my students through localization, yada, yada, and then ending up ultimately with the solution
no longitude the longitude prize is one or the other um it's like people in you the biggest eror is a minus when it should be a plus or longitude which should be latitude the longitude prize he basically was one of the loudest voices for the government to start the longitude prize kind of because he
You can just go in, put in your own latitude and longitude .
And we're going to say the altitude, the longitude , the soil type, and the climate for each one of these nodes.
world if you spin a globe it spins on the two Geographic poles uh all the lines of longitude converge there so
west or east, uh you might be 300 mi closer to a coastline than you think you are. And suddenly, you're on it in the night and you're dead. Once you've got longitude worked out, you know exactly where you are. And we didn't get that until 1750, 1760s there about with Harrison's chronometer. So, finding good longitudes on very ancient maps is
The market determines the price that it will pay. And with that, he was the first man who made it possible for a mariner to find longitude at sea.
suited for the US, this kind of land-based empire that the United States was building. So European empires, at this time, had really struggled with question of how to find longitude at sea. It was a challenge that was solved right around this moment by a guy named John Harrison, who basically invented a really, really good clock that could be carried on ships.
After all, they were building this land-based empire. So what Jefferson really wanted was a way that a single explorer traveling with sturdy, cheap instruments could find out their longitude through observations. You couldn't carry around one of these Harrison chronometers with you.