Chinese athletes also have a secret weapon to enter, which is a special drink used to treat "diarrhea" - a microecological nutrient solution of carotene.
Research has shown that when athletes are at the extreme limit of exercise, a large amount of blood supplies the skeletal muscles, causing intestinal ischemia, leading to blood loss, damage or loss. shedding of the intestinal lining, causing athletes to frequently suffer from abdominal pain and diarrhea. At the 1996 Atlanta Olympics, long-distance runner Wang Junxia lost the 10,000-meter gold medal by a few steps under the spotlight. It was later analyzed that his physical form was affected by diarrhea.
At present, it has been used in national cycling, modern pentathlon, fencing, swimming, sailing and windsurfing, fitness walking, middle and longue distance, women's volleyball, table tennis and badminton and other sports teams. .
How many wave levels can an ocean-going monohull sailboat withstand?
I did it
Once the teacher assigned us a special mission: let's use the waste. the object makes a work with technological content.
I thought about it again and again and decided to “build a boat”. When I got home, I found scraps of plastic foam to make the hull of the boat, old toothpicks to replace the steel nails, windows to paint with blue ink and little red flags to make. from arowana oil labels. Everything complies with the principle of waste recovery. A passenger catamaran was eventually built.
I happily put the boat in the pool. To my dismay, it floated on the water but remained still. How can I make it travel? I have a lotup thought for a while. Suddenly his eyes lit up. One day not long ago, I was playing with several soap boxes in the bathtub like a boat, and suddenly I found that one soap box was moving, but the other soap boxes were floating there, motionless. I was very curious, so I picked it up, took a look and found a small piece of soap stuck underneath. I thought: could this little piece of soap work? Yes, why not try? I cut a piece of soap with a knife and stuck it to the bottom of the boat, but I didn't see the boat move. Eh? Why it does not work ? Oh, maybe it's stuck in the wrong place? I readjusted it several times, but it still wouldn't budge. At this point I was a little frustrated. I thought I'd forget it. Just when I was about to give up, "I had to think again and again for several months. Ninety-ninef times I came to the wrong conclusion, but the hundredth time I was right, Einstein's famous saying stuck with me." rang in my ears for a long time. Yes! How can you give up doing something half? I plucked up courage and tried again and again. Finally, I dug a groove under the waterline at the stern and stuck a small piece of soap in it. got back into the water, wow! I saw it rolling straight, slowly
Looking at the moving boat, I whispered to myself: "Why can soap make the boat move?" My father heard this and patiently explained, “It’s because the surface tension of soap is greater than that of water.” It occurred to me. p>
Through this experience, I finally understood a truth: only by trying boldly can one succeed
Blue Water Sailboat Size Class<. /h3>
The monohull sailboat Bluewater can withstand level 12 waves.
Because of the blue water monohull sailThe strength of the ship can withstand winds of 40 knots, and winds of 40 knots create 12-level waves, so the blue water monohull sailboat can withstand 12-level waves.
The sailboat is a boat that uses wind energy to move forward. It is an ancient water vehicle after boats and rafts.
Here are some common sizes and classes of sailboats:
1. 40-foot monohull sailboat: This sailboat is typically around 100 feet in length and is a smaller sailboat suitable for individual or small team use.
2. Blue water sailboat of approximately 30 meters: This type of sailboat measures approximately 30 meters in length. It is generally larger and more spacious than the 40-foot monohull blue water sailboat, and suitable. for large teams or organizations.
3. Sloop of approximately 15 meters: This sailboat is approximately 15 meters long. It is a smaller sloop and is suitable for individuals or small groups.
4. Dhow of about 20 meters: This type of sailboat is about 20 meters long, which is larger and more spacious than the dhow of about 15 meters, and is suitable for large teams or organizations.
5. Multihull sailboats: Multihull sailboats are generally made up of two or more hulls. They are more stable and spacious than monohull sailboats, and are suitable for teams that require more space and more people or organizational use.
Above are some common sizes and classes of sailboats, which you can choose according to your actual needs.