I Can Meet with Dead Scientists

Based on some existing manuscripts.

The mirror polishing tool designed by Huygens looks somewhat similar to the ancient execution guillotine, which is also known as the guillotine of Louis XVI:

A small ball hangs on the 'guillotine', which is rotated by external force to process the glass.

This set of tools is not particularly difficult to prepare and doesn't require very high precision.

After all, in the original 17th century, Europe hadn't started the industrial revolution yet.

However, Xu Yun made some optimizations on the torque compared to Huygens' design:

First, two auxiliary ropes were added to shorten the left-side deflection force.

Secondly, the donkey was used to wind up the spring, which then provided the thrust, saving on manpower costs.

The energy generated by the deformation of the spring lasts for a short time, but the instantaneous magnitude is quite large, which is quite suitable for finishing work.

Anyway, the donkey is already an old laborer, so let it work hard.

After all, it doesn't concern Xu Yun if the donkey gets tired, does it?

In summary.

According to Xu Yun's plan.

The entire telescope manufacturing process takes about a month.

It is expected that the first stargazing can be conducted around mid-August.

As for the microscope..... it's a bit simpler.

After all, the most difficult hurdle in the entire process was solved by Old Jia and his team not long ago.

Even without the aid of an interferometer, it is not difficult to prepare small-aperture lenses for microscopes.

In fact, long ago, the ancient technique of jade processing was somewhat similar to lens preparation and had become an industry.

The nature of this technique had even surpassed the concept of a 'prototype', and it could be categorized under early applications.

It's just that at the time, without a detailed concept of optics, the ancients couldn't calculate the function of K(θ).

Therefore, with relevant curvature data now available, within less than five days of Xu Yun presenting the curvature design drawing, Siegfried brought good news.

"Mr. Wang, thankfully, I have not let you down."

In the courtyard.

Siegfried pointed to the three small boxes on the stone table and said with a smile:

"The two types of lenses that Mr. requested have been completed and are in these boxes.

The lenses in the box on the left have the lowest magnification, the middle box has the next, and the box on the right has the highest."

Xu Yun thanked him, not rushing to inspect them, but first took out a pair of gloves made from sheep gut from his sleeve.

Sheep gut, in ancient times, wasn't considered part of the culinary "sheep offal," but was used for other purposes:

It was often used as a small umbrella, and even from the Tang Dynasty, there were official shops selling sheep gut condoms.

Therefore, in ancient times when the rubber industry was nearly non-existent, it was actually a very good glove material.

With the odor removed by soaking in high-concentration alcohol prepared earlier, it was basically no different from rubber gloves of later times.

At least sufficient for conducting basic experiments.

After putting on the gloves.

Xu Yun pressed the switch and opened the three boxes.

Inside, each box had a delicate little lens placed at its center.

According to what Siegfried said earlier.

The one on the left is a 10x eyepiece, while those in the middle and on the right are 40x and 100x objective lenses, respectively.

Friends with basic knowledge of microscopes should know.

The eyepiece magnification x objective lens magnification is the magnification of the microscope.

But although both 10X100 and 25X40 have a magnification that appears to be 1000x, in reality, their imaging effects differ greatly.

Because the eyepiece reflects a virtual image, the magnification doesn't need to be too high,

the lens that truly determines the resolution of the microscope mainly lies in the objective lens.

However, a high-magnification objective lens is good but it also has many tedious usage requirements.

For instance, it requires oil to be used, which, in technical terms, is known as an oil immersion lens.

The oil used here is usually cedar oil, extracted from cedar wood, and under special circumstances, water can barely suffice.

This oil needs to be applied not only between the objective lens and cover glass but also between the condenser and the slide.

If oil is not applied.

The image can still be visible, but the image quality will significantly deteriorate, severely interfering with observation.

Those who regularly watch low-quality movies should better understand what image quality deterioration means.

So, two days ago.

Xu Yun used the apparatus designed for distilling alcohol, along with an improvised electrolytic cell, to distill cedar wood once more.

Remember why Xu Yun specifically instructed the use of bent copper tubes back then, it was for this purpose.

It's just a pity that Xu Yun's companions around him couldn't understand his painstaking efforts, wasting his interconnected operations.

Disappointed.JPG.

Of course.

Even with the aid of cedar oil.

Due to limitations in equipment, the lenses ground by Siegfried can't truly reach the level of a 100x objective lens, which is NA1.25.

According to Xu Yun's judgment.

This objective lens' NA is approximately between 1.10-1.15, which is about 0.28 micrometers.

This resolution is higher than the 40x's 0.42 micrometers, but lower than the 100x objective lens' 0.22 micrometers,

Xu Yun then carefully picked up the lenses and approached a vacant microscope beside him.

This microscope is made entirely of fine iron, much more delicate than the roughly made one before, and has been meticulously plated with silver.

From its appearance, it outshines the microscopes of Hook and Levin Hook.

At the base of the microscope is a seal, Siegfried's personal stamp, representing a work of craftsmanship.

Additionally worth mentioning is.

This microscope uses a mortise and tenon-like structure.