What do you know about science trivia?

Comrade Xiaoxiao has the second one, and I will answer the first one.

Both potatoes and sweet potatoes are able to reproduce from seeds. However, in agricultural production, it is generally reproduced through vegetative reproduction. Potatoes are vegetatively propagated by tubers; Whereas, sweet potatoes are vegetatively propagated through their roots.

Firstly, the seasons are different, and secondly.

Childish questions Oh science in elementary school.

Short Science Trivia:1. Raw dumplings will sink and cooked will float because hot air is lighter than cold air;

2. Adding salt can make potatoes and eggs float, and adding salt is to increase the density of water;

3. Parachutes made of plastic film can stay in the air for a long time because there is an updraft next to the tall building;

4. We can see the blue sky because the blue light in the sunlight has the strongest penetrating power;

5. The magnifying glass can burn the paper because the convex lens can focus;

6. The compass can guide because the south is the north pole of the geomagnetic field;

7. Wrapping iron chains around the wheels of snow driving is to increase friction;

8. There are fewer and fewer stars at night because the universe is still expanding;

9. Plants have the functions of producing oxygen, absorbing dust and noise, reducing the surrounding temperature, resisting wind and sand, and fixing soil and water, so a variety of trees and grasses should be planted;

10. Air conditioning, automobile exhaust, cement floors, and a large number of houses are the main culprits of the greenhouse effect.

1. Scientific knowledge is a truthful reflection of the objective world.

2. The sociology of scientific knowledge is a very broad one that includes space exploration, biological gardening, scientific history, earth stories, strange people and wonders, life sciences, scientific and technological life, related **, UFO, military science and technology, science fiction world, digital home appliances, healthy diet, popular science and academic knowledge.

3. Regarding the relationship between the sociology of scientific knowledge and the sociology of science, it is simply said that the two are an inclusive relationship. The sociology of science consists of two main parts. Part of it is the traditional sociology of science, also called the American Merton School of Sociology of Science, which is in an orthodox position in the era, and its leader Merton once won the American Science Prize, and Gore awarded him a medal that year.

But the sociology of scientific knowledge (SSK), which originated in the Edinburgh School in the UK, has taken its place and achieved dominance, especially in the 90s. Regarding the recent progress of this discipline, Dr. Liu Junjun of Nankai University has written a review book, which comprehensively introduces some theories and practices of SSK, and the literature is very complete. In addition, the book is a third-order study, and as he himself said, the purpose of the book is "how I see how SSK sees science".

Large-scale introduction of this discipline is being made in China.