Chapter 376: Nuts y (1/2)

Chapter 376: Nuts y

Appearing in Ye Qing's eyes, it was a silver-white standard hexagon nut Picking up the nut gently, his first finding was that the nut was heavy The standard nut with the sas and was very accurate in grasping its weight But starting with this nut, it weighed about 15 graht indicated that this nut was h-hard alloy

When Ye Qing pinched this alloy nut in his hand and aimed at the crystal lamp above his head to observe the inner thread, already hardened by monsters, he could not help but be surprised There was no thread in this nut Inside the crystal nut, under the light, there was a faint reflection of metal

With reflection, it means there was a metal mirror The inner wall of the nut was as smooth as a mirror, like a seamless precision tube A nut without thread Can this be called a nut, perhaps a metal washer is more appropriate?

What is this nut?

Nuts are the most common metal parts in the htly coether to fix the principle of objects, even the first-grade children know The inside of the nut is called an internal test thread, and the top of the screw or bolt is called outside thread Only two nuts and screws of the saether The diameter is the same, and the pitch between the threads is the sahten the connection with the screw?

Ye Qing believed that japan Science and Technology could not make such a mistake that would violate the coift, there should be solass?”

Professor Cai Chenning nodded a little seriously and handed a Carland 300x portable ht source is usually used to observe the surface of jewelry and the roughness of metal materials It is only the size of a

After adjusting the resolution and the light source, Ye Qing aligned the lens of the portable microscope with the inner hole of the nut, and his face also becanification, the inner hole of the nut, which was originally as smooth as a mirror There was even a thread of internal tests, these threads are surrounded by a circle, the spacing between the pattern teeth is too small to be incredible

Under the observation of the portable microscope of three hundred, it was possible to barely see a trace of depression between the lines and teeth How fine were these striated teeth?

The thickness of a hair strand is 006 e, but a hair strand can be easily seen with the naked eye If the hairs are lined up neatly and there are gaps of the same thickness in the middle, can it be seen by the hu tore off one of his hair, placed it under the portable th and approxined it to the inner wall of the alloy nut to compare the hair silk with the thread, the pitch of the thread was too sap between the striated teeth was much smaller than one-tenth of the hair silk As for how small it was, it has exceeded the human eye's visual analysis ability

”We have measured with a laser interferometer, and the thread pitch is 02 wires, and the thread depth is 3 wires” Professor Cai Chenning gave the answer

”No wonder”

Ye Qing understood the hus than the silk of hair Under sufficient light source and contrast of different colors, even silk could be seen But such a snition

For one single silk, it is okay If two silks are close together with a gap of the same thickness between them, the human eye will default to one The same principle applies to these threads in front of him It is too thin, only one-thirtieth of the hair silk

A circle of ultra-fine threads surrounded, as a nition li in the illusion that the surface of this nut did not have any thread