James Vincent

which is sort of spread across Arabia and was used by Arabian traders in order to measure in their scales the weight of precious metals and gems. Because the seed was so consistent in size, it was the same each time it was created. That meant that it could be a useful marker. So yeah, some units we have stories for, some units it's not so clear. They change over time.

which is sort of spread across Arabia and was used by Arabian traders in order to measure in their scales the weight of precious metals and gems. Because the seed was so consistent in size, it was the same each time it was created. That meant that it could be a useful marker. So yeah, some units we have stories for, some units it's not so clear. They change over time.

Each unit is sort of like its own narrative history that often goes back thousands of years.

Each unit is sort of like its own narrative history that often goes back thousands of years.

Each unit is sort of like its own narrative history that often goes back thousands of years.

Well, to measure the speed of light, this is the, so I mentioned earlier that the meter is, the length of the meter is defined using the speed of light and it's the distance traveled by light over a certain time period. And you go, okay, well, how do you measure the time? And we measure the time because the second is based on the number of frequency changes of a certain atom, cesium-133.

Well, to measure the speed of light, this is the, so I mentioned earlier that the meter is, the length of the meter is defined using the speed of light and it's the distance traveled by light over a certain time period. And you go, okay, well, how do you measure the time? And we measure the time because the second is based on the number of frequency changes of a certain atom, cesium-133.

Well, to measure the speed of light, this is the, so I mentioned earlier that the meter is, the length of the meter is defined using the speed of light and it's the distance traveled by light over a certain time period. And you go, okay, well, how do you measure the time? And we measure the time because the second is based on the number of frequency changes of a certain atom, cesium-133.

And it sort of flips back and forth between these two levels of frequency, essentially. It's like it's flipping. It's like it's turning around, essentially. And we count the number of rotations that it makes in order to define the second. So there is something sort of that can be counted at the end of all that.

And it sort of flips back and forth between these two levels of frequency, essentially. It's like it's flipping. It's like it's turning around, essentially. And we count the number of rotations that it makes in order to define the second. So there is something sort of that can be counted at the end of all that.

And it sort of flips back and forth between these two levels of frequency, essentially. It's like it's flipping. It's like it's turning around, essentially. And we count the number of rotations that it makes in order to define the second. So there is something sort of that can be counted at the end of all that.

In terms of how we measure the speed of light, though, it's an interesting one because there's always the chance that we're going to measure it with greater accuracy. And what we do have for the speed of light, we have an agreed upon speed that we think this is as accurate as we're ever going to get. But there could always be more decimal places further down the line.

In terms of how we measure the speed of light, though, it's an interesting one because there's always the chance that we're going to measure it with greater accuracy. And what we do have for the speed of light, we have an agreed upon speed that we think this is as accurate as we're ever going to get. But there could always be more decimal places further down the line.

In terms of how we measure the speed of light, though, it's an interesting one because there's always the chance that we're going to measure it with greater accuracy. And what we do have for the speed of light, we have an agreed upon speed that we think this is as accurate as we're ever going to get. But there could always be more decimal places further down the line.

The reason why the US never went metric, there's lots of explanations for it. One of the ones is that when the metric system was being defined, it was during the French Revolution, as I mentioned earlier, and the meter, which was the key unit of the metric system, was defined as one ten millionth of the distance from the North Pole to the equator. So that's the meridian line.

The reason why the US never went metric, there's lots of explanations for it. One of the ones is that when the metric system was being defined, it was during the French Revolution, as I mentioned earlier, and the meter, which was the key unit of the metric system, was defined as one ten millionth of the distance from the North Pole to the equator. So that's the meridian line.

The reason why the US never went metric, there's lots of explanations for it. One of the ones is that when the metric system was being defined, it was during the French Revolution, as I mentioned earlier, and the meter, which was the key unit of the metric system, was defined as one ten millionth of the distance from the North Pole to the equator. So that's the meridian line.

And you have to pick a specific meridian because the surface of the Earth is not a uniform shape. So that distance differs depending on whereabouts on the Earth you take it. The French, very understandably, decided to pick the Paris meridian. That is the meridian that runs through the center of Paris. The Americans and the British both thought this was a little too localized.

And you have to pick a specific meridian because the surface of the Earth is not a uniform shape. So that distance differs depending on whereabouts on the Earth you take it. The French, very understandably, decided to pick the Paris meridian. That is the meridian that runs through the center of Paris. The Americans and the British both thought this was a little too localized.

And you have to pick a specific meridian because the surface of the Earth is not a uniform shape. So that distance differs depending on whereabouts on the Earth you take it. The French, very understandably, decided to pick the Paris meridian. That is the meridian that runs through the center of Paris. The Americans and the British both thought this was a little too localized.