In physics, a mechanical wave is a wave that is an oscillation of matter and therefore transfers energy through a medium.[1] While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position. Mechanical waves can be produced only in media that possess elasticity and inertia. There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves. Some of the most common examples of mechanical waves are water waves, sound waves, and seismic waves. 

In the countries, I know, and for my personal tastes, what best represents Vietnam is pho (sorry, I don't have Vietnamese diacritics on my keyboard): 

 

In Thailand, my preference is tom yum: 

 

In Cambodia, I have a weakness for amok trey (fish curry): 

 

This one, I cooked it myself, which explains the somewhat odd appearance.

And in Taiwan, the world-famous 牛肉面 (beef and noodle broth):

Hello,

Bed bugs are extremely tough and it's quite difficult to get rid of them. Be careful when traveling, hotels are full of them! We have customers who call us because after returning from vacation usually (with a few bugs in their luggage) they are literally invaded. One of the most constraining aspects is the contact of bedbugs directly on the skin causing fairly strong itching.

If you plan to travel, take tea tree oil with lemongrass oil with you. On the spot with 10 drops of each, make a water-based mixture and sprinkle some on the mattress before going to bed. Also put some on your skin, this time the mixture must be with almond oil. The bugs will a priori stay away. 

Hippopotamuses may look like peaceful hunkers, but they're actually extremely dangerous. The female becomes fierce when her young are threatened.

The Egyptians of antiquity knew this well: they had deified her under the name of Taouret (Touéris); she presided over deliveries and breastfeeding. The male was one of the personifications of Seth, the god of chaos.

Crocodiles know this perfectly well, and they usually leave them alone.

 

Imagining an isosceles triangle as a waveform, with the right angle sitting on a horizontal line, the topmost part of the triangle represents amplitude. The distance between the vertex of the right angle and the leg of the triangle on the horizontal line is the wavelength.

For a sine wave, there is a positive amplitude and a negative amplitude and the wavelength is the beginning of the wave below at the opposite end.

By transforming the waveform above into squares, rather than a sine shape, the peaks can be either positive or negative peak heights and the waves need not be symmetrical, so the amplitudes would be measured separately, but the wavelengths would be identical. Digital clock waveforms are positive amplitude, rectangular in shape, equal wavelength, and equally spaced intervals.   

Waveforms can be sine, rectangular, or generally sawtooth, but combinations of all three also occur. Waves can also be staggered rectangles - only going up and down or only going up or down and also increasing and decreasing combinations. 
  

Living with your spouse for a very long time can be a good thing in itself:
Building a family… InA human and real estate home Living with one's wife or husband requires sociability, daily tolerance. You can get tired without leaving your home already built. You may not get along sexually with your partner... you can entrust a third person with your doubts, your personal distress that your other half no longer hears, out of habit, weariness. You can have a misbehavior once or twice in your life as a couple... We can improve in bed thanks to an outside person who restimulates us sexually... After childbirth, women are disgusted or simply more stimulated by sexuality. Or a man can become impotent, lymphatic in the sex thing I know a man who only does this once a month. His wife would like to do it 5 to 6 times a week, if not more… Conversely a man who masturbates 3 times a day so as not to cheat on his wife and this wife, a virgin up to 25 years old, who does not care at all his own sexuality. What are they doing together? They can have a family life, as a couple, without common sexuality, and he can go and frolic in order to fulfill his physiological needs... which he now, with the wife's agreement, incidentally! Must say that she was tired of seeing her husband masturbating in bed, evenings and mornings. They didn't want to make separate rooms. Do not tell me that this completely normal man according to his entourage, is in an addiction! He just has a proper hormonal system to ''fuck anything that moves''…could. rescue his wife does not move. In fact many things can allow us to find somewhere else, once, often, the soul mate who would be useful to us for the stability of our couple. Everything depends on the spouse's acceptance of this breach of the promise, explicit or not, to stay together forever…. Sexuality is a normal thing that frustrated, prudish, uptight, austere souls would like to moralize, smear, minimize. It's more than a return to the 19th century!

Despite what is said in the other answers, the practice of fasting has an only spiritual interest, to respect certain obligations of the religious calendars.

Religion has been desacralized and we are going to put mystical practices at the heart of "holistic care"

No, I mean no, the serious medical publication has ever shown the benefit of fasting outside of certain very specific situations, such as before surgery under general anesthesia.

The only real advantage of fasting is to have an empty stomach, it is practical for certain treatments.

On health, there are lots of hypotheses, but none of them are verified by methodologically sound studies.

Welcome to the world of "detox" health, a world where marketing and untested ideas thrive.

For several years now I have been fasting every day, taking only one meal in the evening. Nothing in the morning, not even a coffee, or fruit juice, nothing at lunch either, sometimes a glass of water, and in the evening after 24 hours of fasting, I have a light meal. Every morning I go to work on foot, running 5 km and in the evening I return home on foot, always the same 5 km. For 1.78 I have 60 kg. I still have a lot of energy, I sleep 3 to 4 hours a night. I work a lot almost 10 hours a day nonstop. For years I haven't taken a single medicine, not even a pill. I have no joint pain, good memory, good reflexes.

To lose weight, the method is simple, you just have to reduce your calorie intake, of course, you may be a little tired, but at least it works every time, so if you delete a meal, you're easier than eating less. each yes it can be effective.

(a healthy diet that lasts a lifetime, not just the time to lose a little weight, otherwise, the extra pounds will come back at a gallop) 

Hello, without being an expert, I do not call this intermittent fasting. Ketosis only really starts after 14 hours of fasting. So with my wife, we chose 8 p.m. to 2 p.m., i.e. 4 p.m. of fasting. We only drink water during this time. We no longer have sodas, eat vegetables and legumes with little starch, lean meats, and eggs. Hot drinks without sugar and without sweeteners. 1 hour of cycling every day, and we walk to get around the city. We no longer take the elevator (live on the 4th floor) except for heavy shopping. She lost 15 kg and I 10, in less than a year. (She is 43, I am 56).

There are difficult stages, for me Essentially. My fat is older, and I'm an endomorph, not her.