Q:Wheel axle on a bicycleThe pedal and the disc gear on the middle shaft comprise a labor-saving wheel axle (the radius of the pedal is larger than the radius of the disc gear). How do I feel wrong?. There is a shaft in the middle of the disc gear. It should be. The middle axle is the shaft of the axle. The disk is the wheel, isn't it?The principle of the pedals and the disc gear on the center shaft is different from that of the screwdriver, screw and nut of the cross sleeve

In fact, the lever principle, labor-saving, because the increase of the axis of the moment.

Q:What color is the sunflower's disk?

Is the beginning of the green, then golden yellow flowers, flowers fall after you see the seeds

Q:Why is that? What can be done to prevent this situation?

Insufficient pollination.Artificial pollination.

Q:My family only raised a sunflower, and there was no planting around it. Now the disk is big. How can we finish the pollination? Can pollination bear fruit?

You must mate with flowers before you can bear fruit

Q:What's the disk? What's the disk? What's the disk? botany

Refers to the structure of the top expansion into the receptacle discoid, goblet, cushion or ring.

Q:Urn breeze sunflower plate powder is national medicine or health care products?

I suggest you do not buy such a liar products. Anyway, the selling price is high, and the patient is cheated once. In fact, nothing is effective, and no poison, will not kill people. When you finish eating, you will say that the treatment is short, so that patients continue to buy products. They said the three top three hospitals were "deceptive" and asked one of the professors at one of the hospital's rheumatology departments, saying there was no clinical trial at all. Don't fall for it. How many people have been cheated like that?! Unscrupulous merchants! The real good medicine, your doctor will not give you such a medicine. Don't be blinded by the pain, and the disease is urgent medication!!! Think over！ Big guy is not easy to earn money, want to recover the desire to be unscrupulous businessmen trampled, is the real sorrow!!!

Q:Why do you have a hole under the disk? What should you pay attention to?

At the bottom of the hole is to drainage, and when the pot of water too long can be discharged in time, it will not drown the flowers.

Q:What does it symbolize?

Chlorophytum but could not confirm that ChlorophytumBecause of Chlorophytum in the vigorous growth period every day to 1 ~ 2 times sprayingYou should be right

Q:Once saw a asthma folk prescription, said that eating sunflower disc can be treated, but this disc how to eat? Is it fresh, petal, or sweet, or dry? How's it going? Also, is asthma patients can eat red ginseng?

Take orally: decoct soup, 15-60g. External use: the amount, or powder deposited during dressing. Red ginseng can be applied, he has no side effects on the human body.

Q:Is the sunflower disk a inflorescence?

A sunflower's disk is not an inflorescence but a flower.