The discovery of the "Tesla" parasite gave Todd a new breakthrough in microbiology and gave him new ideas on laboratory equipment.

The existing optical microscope in the lab is the second microscope he made (the first one was given to Tristan), with a magnification of up to 400x, and with the ability of Hawkeye, the magnification can reach 2,500x.

This magnification microscope is capable of observing bacteria and chromosomes (staining with gentian violet solution or magenta acetate solution), while optical microscopy is powerless to observe smaller substances such as viruses and must be presented with the help of an electron microscope.

Because the overall size of the virus is generally 30-80 nanometers, if you just want to see it, then you can see it with the naked eye if you zoom in 10,000 times. But if the viruses clump together, they need to continue to zoom in 5-100,000 times for a single virus to be effectively observed. If you want to clearly identify the form of the virus, it is better to continue to magnify it by 10-150,000 times.

The discovery of the "Tesla" parasite just gave Todd the basic material for making electron microscopes.

For example, the "Transmission Stun Gun Microscope" and the "Scanning Tunneling Microscope" were too difficult to manufacture, and the materials science and engineering technology in Twilight Town had not yet reached the corresponding level, so Todd had to locate the equipment on the most basic and simple "Magnetic Electron Microscope".

The magnetic electron microscope, the most rudimentary product of the electron microscope, was invented by Hans Bush in 1926. The principle is described in plain language. First, a shell made of soft magnetic material (pure iron or mild steel) with an inner annular gap is created, and then an electromagnetic coil is built inside. When the coil is energized, the electrons will move along the axis of the coil and magnetic induction will be generated slowly. As the current increases, the magnetic induction intensity is strengthened, and the pattern of the electromagnetic lens focusing image becomes clearer and clearer. The specimen under the sight glass is magnified and displayed in the eyepiece.

This is the main principle, and as for some other accessories and theories, such as vacuum pumps, diffusion pumps and vacuum valves, air extraction pipes, material slicers, as well as the wave-particle duality of light, Lorentz force, electromagnetic induction, and the theory of osmium acid staining, I will not repeat them here.

Now talking about the materials of the electron microscope, the most critical electromagnetic coil can be replaced by the "Tesla" parasite, but the creation of the soft magnetic material shell and the electromagnetic lens needs to be completed by mobilizing all the scholars, craftsmen and xenomorphs in Duxi Town.

After Todd examined Cosette's body and instructed her to discharge the appropriate amount of electricity every day according to her condition, he held a technical conference at the headquarters of the Order for the manufacture of a magnetic electron microscope, attended by Monk Joe, Ulysses, Lynn, Aiden Sr., and Rachel.

After nearly two hours of explanations, the attendees whispered and gave Todd an answer that broke him.

"Captain, we don't understand what you're saying......

When Todd cheered up, he asked everyone again what they didn't understand.

The people in the audience looked at each other and gave another answer that made him desperate.

"We don't understand electricity and magnetism when you talk about it......

Todd slapped his right hand heavily on his face, looking like he had no love. Only then did he remember that the concept of electric current should have been put forward by the American scientist Franklin in 1732, and that the summary and induction of electromagnetic phenomena should have been Maxwell in the second half of the 19th century.

Now it takes only two hours for these medieval people to learn and understand the theory of electromagnetism, which is tantamount to a fool's dream.

"Commander-in-chief, I once heard someone mention electricity and magnetism when you talked about it. Ulysses' speech made Todd, whose mood sank to the bottom, see a glimmer of light.

"Tell me, who is it?"

"Abu bin Sabah al-Qadi. ”

When he walked into the conference room of the Knights' headquarters and saw the electromagnetic models and calculation formulas drawn on the wooden boards, Kendi's eyes looked like that of a leopard that had spotted its prey in the night.

The agitated Abbasid scholar pointed to the plank, and a long string of Arabic words came out of his mouth.

Todd frowned, and chatted with him in lingua franca about the principle of electromagnetism, and the more he talked, the more frightened he became.

Kendi said that his friend had proposed a similar theory, but it was not so complete and rigorous. These southerners used to rub fur products and metallic glass together, creating electric sparks that could ignite confetti. They even gave the crackling flash an Arabic name – 'raad', which means lightning.

Todd looked at Kendi, who was gushing, and finally remembered that in the Middle Ages, the Arabs seemed to be the first people to understand the nature of lightning, and they recognized the other sources of electricity before any other race. In the late 14th and early 15th centuries, they even wrote works on the analysis of electrical and magnetic energy, which unfortunately were lost in later wars.

Todd and Kendi chatted for almost an hour, and to the former's delight, the other party's understanding of electricity and magnetic energy, although there were some mistakes, was more of a bold assumption and reasoning close to the truth.

Todd eventually formed a manufacturing team for the "Magnetic Electron Microscope", with Kendi as the team leader, Ulysses, Lynn, and the students as researchers, the monks in charge of finding and providing books, Rachel in charge of supporting abilities in the manufacturing process, and Aiden Sr. in charge of manufacturing engineering.

A handwritten document asking Queen Mary, the administrator of the Vault, to give her full support to the work of the manufacturing team, Todd finally signed his name and stamped the Knights' seal. Leaving a room full of people engaged in discussion and strife, the Grand Master of the Order has another important job to do.

North Island Seafood's logistics cargo ship arrived on the west coast of Dusk.

These large cargo ships under the flags of the Talon Clan and the Blackhead Clan have attracted the attention of the defense forces of Dusk Town. Alfonso rushed to the beach with the Dusk Town Escort as soon as possible, and without saying a word, surrounded the North Island pirates who were in charge of the delivery.

After half an hour of confrontation, Todd's timely arrival finally relieved the two sides of the tension.

On the one hand, Alfonso took the xenomorph soldiers to the warehouse behind the experimental building to fetch the dormouse with the "frozen" ability, and on the other hand, Todd chatted with Morgan and the Talon Warriors, who were in charge of the delivery.

This time, the seafood was loaded into five large ships, with a total of 129 tons. In addition to the goods, the North Islanders have piled up a large amount of ice in the hold to preserve their freshness, but there is not much left of it that has melted now. If you don't install the "bacterial cold storage", once the seafood spoils, all your efforts will be in vain.

Todd first explained to Morgan about Twilight's intention to purchase food, then instructed the soldiers of Twilight to place the dormouse cage in the cabin, and finally told the North Islanders how to use the "cold storage" and precautions.

After a long day of work, Todd took a deep breath as he watched the five North Island cargo ships set sail again and sail south. I secretly said in my heart, whether or not we can open up the trade route of North Island - Duxi Town - Southern Empire depends on the results brought by this fleet.