Kneel and ask for physics problems. Thank you very much, saving a life is better than creating a sev

21 Prism No.

26 It is best to say in a dark room, say that a concave lens is placed perpendicular on a white paper, with two beams of light parallel to each other from one side symmetrical to its axis perpendicular to the concave lens (the light should be parallel to the paper and as close as possible), you can clearly see the transmitted light, make a reverse extension line for the transmitted light, and get a focal point, the distance between the focus and the concave lens is the focal length.

Instrument: Ruler - Draw and measure distance.

34 An optical microscope consists primarily of an eyepiece, an objective lens, a stage, and a reflector. Both the eyepiece and the objective lens are convex lenses with different focal lengths. The objective lens is equivalent to the lens of the projector, and the object passes through the objective lens into an inverted and magnified real image.

The eyepiece is equivalent to an ordinary magnifying glass, and the real image is formed into an upright and magnified virtual image through the eyepiece.

Angle of view: The angle of view, the angle of view to the perpendicular direction of the monitor, etc., the angle formed by the light rays drawn from both ends of the object (up, down, left and right) at the center of the human eye when observing an object.

The smaller the size of the object, the farther away from the observer, the smaller the viewing angle. The minimum angle of view at which a normal eye can distinguish two points on an object is about 1 point.

Telescope: The first function of a telescope is to magnify the opening angle of distant objects, so that the human eye can see details with smaller angular distances. The second function of the telescope is to feed the beam of light collected by the objective lens that is much thicker than the diameter of the pupil (up to 8 mm) into the human eye, allowing the observer to see faint objects that were previously invisible.

You can check them separately, you don't need to ask questions here, it's very powerful, ok?

The meaning of the whole sentence:

Saving lives. The merit is immeasurable.

It is far better than building a seven-story stupa for the temple.

The explanation in the Great Dictionary of Buddhism is: "Futu".

Miscellaneous) is also used as a floating picture, Hugh Tu. Press the floating map. All are different translations of the Buddha. Buddhism was created by the Buddha. The ancients called Buddhists floating Buddhas. Buddhism is the Buddha Buddha's way. Later, the pagoda was called the floating temple.

The construction of the Buddha Buddha is regarded as a matter of merit, and the seven levels refer to the seven layers, so it means that the seven-story pagoda, the Buddhists think that the seven-story pagoda is about 100 meters high Buddha statue, and the great Buddha is built to make offerings, and the merit is very great, (this is mentioned in many scriptures, you can turn over the Jizo Bodhisattva Sutra, which is mentioned), if you save a person's life, then the merit you get is greater than the building of the pagoda to worship the Buddha, which is to save people's lives and make a seven-level floating Buddha.

What does "saving a life is better than building a seventh-level floating slaughter"? What exactly is a floating massacre?

To put it simply: Futu (disciple) means tower. Building a seven-level stupa is a human being of immeasurable merit. Therefore, there is a saying that saving people's lives is better than creating a seventh-level floating slaughter (disciple)!

Futu is a stupa, which is transliterated.

In Buddhism, the seven-story stupa is the highest level of stupa.

Saving someone's life, even building a seven-level floating slaughter means that saving someone else is equivalent to building a seven-story pagoda for you with your merits!

Send you three words: ask knowingly.