In this outdoor experiment, Xia Lin selected 20 points in each district of the imperial capital, as well as 20 points in the slums and various plains, hills, and river valleys in the suburbs.

In addition, there are a few special points, such as the magic material store near the academy, a crystal magic stone mine on the outskirts of the imperial capital, etc., but at the end of the day, a group of five of them can measure an area.

Seeing that Wyatt had already learned the Arabic numerals and some Sassen characters he had taught during this period of study, and was barely able to take on the task of recording data, Xia Lin simply divided into two ways.

He took Wyatt and Roy to be in charge of measuring the concentration of magic in the slums and outside the city, and Harper and Adams, who were more familiar with the imperial capital, were in charge of the four districts in the city.

After almost six days of measurement, during which they also took the time to hand over the magic scrolls drawn by the soldiers and students to Roy and Adams, Xia Lin and Harper summarized the data in the Karl Laboratory, and found that excluding the influence of the factor of measurement accuracy, the concentration of magic power in the imperial capital and the surrounding areas was basically equal everywhere, all of which were 30 tiles.

There were only a few exceptions, namely the few points where the ambient mana concentration of the magic material store and the magic stone mine could change, and the ambient mana concentration of the magic material store and the magic stone mine changed.

The Magic Material Shop has a 31 block of mana, and the Crystal Gemstone Mine has a 32 to 33 block of mana.

This is a big discovery, which means that in addition to the influence of spiritual power factors and high-magic factors such as magic stone mines, the magic power in nature is most likely equal everywhere, so if you find an area with abnormal magic concentration, there must be something related to magic at work.

Xia Lin immediately thought of the various uses of this magic meter he had made, such as exploring magic stone mines, finding and unearthing ancient magical relics from those bard stories, searching for potions or magical beasts in inaccessible areas, and so on.

However, at present, this magic meter is not particularly accurate, and can only measure the large data in practical applications, and the practicability is not very strong.

Xia Lin thought about it for a while, and felt that he could use low-grade demonic beast blood to draw runes in the early part of the mana meter, thereby increasing the range of the mana meter.

In the later part, the runes are drawn with materials with high conductivity, so that the magic power of the subsequent part that cannot light up a light rune can be further measured.

The units of this part of the magic power can be recorded with microgrids, and then the mana crystals can be used to inject mana into the two ranges of mana meters at the same time, so as to obtain the conversion ratio of grids to microgrids.

For the sake of convenience, Xia Lin wanted to find two suitable materials to make this magic meter 2.0 through experiments, and it was best to achieve a conversion ratio of 1 grid = 10 or 100 microgrids, so that the calculation would be very convenient.

In order to realize his brilliant idea, Xia Lin took out all the funds accumulated in the sugar business and cake shop during this time, excluding the purchase and spare parts.

He reluctantly bought a bunch of expensive magic materials from the magic material store, and even bought a small pound of Mithril worth 76 gold lunt for a pound and 94 gold lunt for a pound, and immersed himself in experiments with Harper again.

This time, the production of the magic meter naturally could not be so casual, Xia Lin was going to start with the link of measuring the magic guide value of various materials.

Xia Lin has a mana crystal on hand as a source of mana, and as long as the rune wire is connected to the mana crystal, the mana crystal can output mana.

By drawing a large number of light runes with rune ink made of different materials made of the same base of demonic beast blood mixed with different material powders, and then using the magic crystal to output a fixed amount of magic power to light up these light runes, Xia Lin and Harper soon summed up the magic guide value of a series of materials.

Based on the Mithril, which has the strongest magic guide among all the materials that can be found, its magic guide value is recorded as 1.0, the magic guide value of Adamantite Gold is 0.95, the magic guide value of magic copper is 0.73, and the guide value of other biological materials fluctuates quite dramatically, with the lowest magic guide value being the powder of the organs on the back of a monster called Stone Rhinoceros at 0.11.

In this experiment, Xia Lin also unexpectedly discovered a rule, that is, materials with strong demonic conductivity must also be outstanding in guiding spirit, and the two are almost proportional.

It's just that it seems that only pure crystal balls and diamonds can store spiritual power, and all other kinds of magic gems and minerals can't store spiritual power.

The variation of the mana guide value of various materials also follows a rule, that is, the higher the mana content of the biological material.

The low-grade Warcraft blood guide value commonly used as the base of rune ink on the market is usually around 0.54, the mid-grade Warcraft blood is 0.72, and the high-grade Warcraft blood is 0.82.

In this way, it is no wonder that everyone chooses Warcraft blood as the base of rune ink, after all, low-grade Warcraft blood only needs 14 silver mar a tube, and the blended ink is enough for mages to use for several months, although the magic guide value is low, but the cost performance is very high, and the ability of Warcraft blood to dissolve various material powders is also quite good.

Based on this experimental data, Xia Lin used Mithril Ink and Stone Rhino Ink to create a new Mana Meter 2.0.

Version 2.0 of the Mana Meter is divided into two sections, which can be split into separate small strands of mana for precise measurement, with the rune lines in the front made of Stone Rhino Ink and the rune lines in the back made of Mithril Ink.

The number of light rune scales has been increased to 100, with the first 30 being large ranges and the last 70 being small ranges, and the readings need to be read twice and then converted to a uniform unit and added.

By using two magic crystals to stably transfer mana to the two mana meters at the same time, Xia Lin came up with the conversion ratio of the grid to the microgrid, and the mana that can fill one grid can fill almost seven microgrids.

In this way, the range of the new magic meter is 30 + 70/7 = 40 grids, which looks quite convenient.

With both the Psychic Meter and the Mana Meter 2.0 completed, Xia Lin's first phase of experiments was quite successful, and he then proceeded to the second phase of his magical research: modeling the runic psychic nodes through the spatial coordinate system.

After explaining the concept of spatial coordinate system to Harper, and the two tried to model the rune spirit power node, Xia Lin found that the second stage was not a magical problem, but a purely mathematical modeling problem.

What he has to do is not to stay in the laboratory and open his mental power vision with a ruler and compass to measure the coordinates of these points one by one, but to find dozens of hundreds of researchers like Harper who can exert their mental power, let them carry out these repetitive tasks, and summarize the data they get.

At this time, the sergeants had become military mages and went to the north, and Xia Lin no longer had such a cheap and reliable source of high-level labor, so he naturally thought of the Royal Academy of Magic.

There are still many juniors and sisters in the Royal Academy of Magic, they are the best senior labor, but it is not easy for these talents who have been booked by the military in the north to work for themselves, Xia Lin first has to find a way to establish a certain cooperative relationship with the Royal Academy of Magic.