Chapter 484 (2/2)

”Lens principle?”

Pamela looked dazed. She turned to Nokia and shouted, ”master Nokia, have you heard of the principle of lens?”

”Don't call me a master! I can't be called a master... Lens principle? I seem to have heard similar words somewhere.”

Nokia put down its work, frowned, walked over and said, ”I can't remember where I've seen this word. It seems that it's recorded in the literature excavated in which ruins.”

Donne smiled. The dwarfs must have pointed out this technology in the past, otherwise they would not have made a nuclear bomb and boarded prandal's satellite.

”The principle of lens is very simple. Have you noticed soap bubbles?”

”Soap bubbles?”

A group of people shook their heads. The soap was made by Donne. It has only recently been popularized as a daily commodity. People only pay attention to the convenience of soap. Where will they pay attention to soap bubbles.

”Well, well, let's take another example.”

Donne thought for a moment, put down Elia, and then snapped his fingers. The water elements in the air around him quickly condensed, forming a convex lens with a thick center and thin sides according to his consciousness.

Then he took a group of curious babies to the yard. After looking at the rumbica (sun) in the sky, he asked Nokia to get some hay and put it on the ground. Then he pointed to the convex lens floating around him and said, ”this is a typical convex lens, and its function is to gather light beams.”

”Gathering beams?”

A group of people are confused again. Light is light. Can they gather?

Donne was not busy explaining. After they read the experiment, they naturally understood it.

He adjusted the position of the lens so that the focus fell on the hay, and then said, ”pay attention.”

A group of people stared at the hay and were surprised to find that a very bright light spot suddenly appeared on the hay.

”That spot is the concentrated beam. Its temperature is very high, but it is only at the focus of the lens.”

The ice lens he pinched out was very large, so the refractive index was very strong. When Donne spoke, the hay began to smoke. As soon as his voice fell, the hay had made a ”bang” and burned.

”It's on fire!”

A group of people were surprised. They didn't see the Lord use magic, but used a strange ”lens”. The hay was ignited?

”Yes, as I said, at the focal point of the lens, all the light passing through the lens is refracted at one point, so the temperature there is very high, and it can be used for ignition.”

Donne explained patiently. Then he lowered the lens, smiled and said, ”but just now that's the principle of another field. Now let you see... The world after the lens. Come and have a look.”

Pamela stepped forward, looked down through the lens, and then she was stunned.

”What's the matter? I want to see it too!”

Nokia, which is most interested in new things, jumped and shouted, ”you are discriminating against the height of dwarfs!”

Donne lost his smile and thought. The earth rolled under Nokia's feet and lifted him up. Nokia couldn't wait to look at it, and then suddenly screamed: ”my God! Is this, this, this the principle of 'engineering master's eyeglass' recorded in the literature? It's so simple!?”

Donne was stunned: ”Engineering Master glasses? Dwarf X-ray glasses?”

”Yes! No!”

The excited Nokia danced and shouted: ”In a relic excavated by us, a surviving document records that in the past civilization, one of the necessary auxiliary tools for a real engineering expert, a tool that can be worn on the eyes, can help the engineering master carry out precise processing work - but we have not found any prototype for reference! It is still a tool today Difficult problems! ”

Nokia said excitedly, ”I can't imagine how simple the principle is! Light! Lens! That's the secret!”

Donne breathed a sigh of relief. It's good to have a race that understands science. Otherwise, he might have to work hard to explain the detailed principles, which would be more troublesome.

”Yes, it is.”

Donne nodded: ”in addition to convex lens, there are concave lens, single-sided convex lens and so on... Most importantly, if you combine these... You will find a new world.”