However, Oda Nobunaga, a terrestrial animal, apparently did not know how the back-to-back pilots of World War II drove airplanes to dance in the sky. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

For the past few days, he has been staring at the compass that is constantly dancing. It seems that those damn Zero fighter pilots, through more than 300 years of time, the compass of the controller is constantly dancing by mistake.

Since the compass was unusable, there were no landmarks to refer to on the surface of the sea, and they could only judge the general direction based on the sun and astrological signs.

However, none of them had specialized in the art of star pulling, and at this time it was not perfect—the version from Arabia was obviously more complicated than the one from the Central Plains, but because it was complicated, no one could understand it. On the contrary, the astronomical navigation technology of Westerners has made great progress. However, the Dutch merchants in Nagasaki kept it a secret and refused to divulge it easily.

In fact, Oda Nobunaga did not know that applied astronomy had developed greatly in the late Ming Dynasty, and the abundant observation records and gradually improved observation instruments made it possible to use the height of the stars at specific times of the day to determine the dimensions of the region.

But now they are sailing south, and the most important thing to determine is not the dimension, but the longitude. Of course, if the observations were more abundant – not only recording the height of the stars at a certain moment, but also a whole host of information such as their relative positions – the observation equipment was more advanced, at least a nautical clock – they could also determine the longitude.

However, they don't even have a sextant.

It was 116 years before the British Navy installed the octant – the predecessor of the sextant – on seagoing vessels. Later, the sextant was further improved, but the name was not changed.

However, the original user of the sextant, John Campbell, could not have imagined that his instrument had already been used more than 100 years ago.

Kang Ning also lamented the efforts of Huang Xing, a sailing enthusiast, in order to let the fleet take the initiative to judge the position, rather than simply using experience, to set off in a certain month, so that the monsoon wind in a specific direction could blow the ship to the destination - this was the main sailing routine before the Song Dynasty, and many nautical instruments had already been equipped.

The Blue Fox he rode on was the flagship of the entire crossing group, and the corresponding equipment was even better. The marine clock and a modified sextant were already equipped on board. In the cabin, there is also a wealth of astronomical observations.

It can be seen that the sextant is an "imported product" from the 96 time and space, and the astronomical clock is purely a table clock, which is also imported from the 96 time and space. Perhaps the most precious of these is astronomical data.

Today is May 24, 1616 in the Gregorian calendar, the tenth day of the fourth month of the lunar calendar, according to the astronomical data collected by Huang Xing, the geometric center of the constellation Draco will go up to the middle of the sky tonight, and at that time, take a glance at the time displayed by the astronomical clock - Huang Xing uses Greenwich Mean Time - to calculate the time difference, you can convert the difference in degrees, and then combine the longitude corresponding to Greenwich Mean Time, that is, the prime meridian, you can calculate the longitude of the location.

However, there is no definite star in the geometric center of Draco, which can cause errors during observations, so the final result can only determine the approximate longitude.

When the captain reported the results, Corning was surprised to find a familiar number, 120 degrees east longitude.

Heh, isn't this the baseline of Beijing time in the future? Although Beijing is not on this line, Pucheng and Lintong, Shaanxi Province, where the time service center of the National Academy of Sciences is located, are far away from this meridian. However, the predecessor of Beijing time, the coastal time established by the Qing government for customs needs, used this meridian as a baseline.

Later, the Central Plains time of the Republic of China, as well as the Beijing time after the founding of the People's Republic of China, also inherited this standard. Of course, China is a vast country after all, so much so that many places in the western region have different schedules than those in the east. For example, when the sun rises in the east, the morning star may not be seen in the west. It is obviously inappropriate for them to get up at this time, so the schedule in the west is generally postponed by two hours. You're working 9 to 5 in Beijing, and it's not too late for them to set up a stall to sell cantaloupe at 11 o'clock.

Some people think it's awkward, but of course this kind of people are mainly from the east, and the local residents are basically used to it. As for some groups that have political factors and have to use local time, that is, the time of the sixth time zone, Corning disagrees. As for learning in the U.S. – the U.S. adopts Eastern Time (EST) (5th Zone West), Central Time (CST) (6th Zone West), Mountain Time (MST) (7th Zone West), Pacific Time (Western Time) (PST) (8th Zone West). [The complex system of Alaska Time (AKST) and Hawaii Time (HST) (West 10 Time Chapter), and the fact that the United States adopts daylight saving time from the second Sunday in March to the first Sunday in November, which is one hour earlier than normal time, Corning thinks is even more nonsense, and that things can be adjusted at different schedules, without having to set multiple times, let alone adjust clocks while daylight saving time is in use.

Kangning felt that although he was stubborn, his views on this matter were relatively objective. Now, he is also a farmer with land, so he also wants to promote the standard time on his own land.

However, using the name of Beijing Time is obviously too ostentatious. Then let's change it, and take a look at Langya Mountain in the north - not the illegitimate son of Anhui, it is said that Sima Ling, the king of Langya, was born (ming) - and thought that the longitude of this mountain seems to be close to 120 degrees, so it is better to name it.

"Langya time?" The companion Ah Gui - full name Zhang Jia A Gui - was a famous minister of the Qianlong Dynasty and a famous professional household in Tuntian. He has been fighting for many years, but he is also a cultural person, and he is naturally familiar with many things in history, so he said, "I have heard of Langya County, Langya Country, Langya County, Langya Mountain, and it is really the first time I have heard of Langya time." ”

Kang Ning laughed: "You haven't heard of the Five Heroes of Langya Mountain." ”

But then again, I don't know how many strong men will need to pay the price of their lives on this journey to the war.

So, the original association also made him silent. Even if he arrived in the Wa Kingdom and Ryukyu and saw Old Man Xing, Li Duo and others, he only greeted him a little and continued south.

It wasn't until the island of Luzon in the northern Philippines came into view that Corning's mood changed.

He became angry.

The reason is that Kuroda Nagamasa and others, who were supposed to go directly to Micronesia from the Japanese country, actually appeared on Luzon. They were dancing to welcome the arrival of the Blue Fox.