Science needs fantasy, invention is expensive
Males and females mate to produce offspring
The wonders of nature, we may not imagine! However, behind every wonder, there is its reason. For example, why most animals reproduce sexually, and both females and males are required to reproduce. What's more, when the number of males or females is not enough, the number of transsexuals must be filled. Let's explore why creatures evolved sex. Before understanding this, what we need to explore is:
The strongest earthquake in history
How terrifying is the power of an earthquake? A city in ruins in the blink of an eye The power of earthquakes We all know that an earthquake is a highly destructive natural disaster. Whether it is the Tangshan earthquake in 1976 or the Wenchuan earthquake in 2008, the damage caused by the earthquake is still vivid in our eyes, and it also makes people deeply f the horror of the earthquake. eel
There may be an evil civilization in the universe, and if aliens are found, mankind will be enslaved or even extinct!
Are we humans alone in the universe? Probably not, but that's not the only answer astronomers are seeking to answer to questions related to aliens. While many scientists do their best to try to contact or at least find an alien civilization, others are asking some key questions: Are we sure we are ready for aliens to find us? If we find alien life, do we try to contact it or let it disappear? Some think aliens may not pose a threat to us humans, while others have come up with scary ideas.
"Monogamy" or "polygamy" is better? Scientists: the former may lead to animal extinction
The most common form of reproduction in nature is sexual reproduction, in which the germ cells of both sexes are brought together to develop into new individuals. This method has many advantages, such as promoting the spread of favorable genetic mutations within a population, accelerating the evolution of the species, and enhancing the ability of individuals in the population to adapt to their environment, which can be beneficial for the survival of the species. Sometimes, some scientists may go the other way and can use sexual reproduction to bring down the population size of some species.
There may be an alien civilization! 4.2 light-years away from humans, civilization is more than 60 years behind humans
There is no end to the exploration of space. In the universe, besides humans, are there any other alien intelligent creatures? There is no answer to this question for the time being. If there are aliens in the universe, or if human beings come into contact with aliens, it will prove that there is still a home suitable for life in the universe. The lifespan of the earth is nearly five billion years, and the sun will also be near It will end in five billion years. Although this time span seems to be far away for now, it also means a serious problem. If human beings do not find another suitable place to live in the universe, human civilization will one day disappear. To disappear without a trace.
Has human technology reached its peak, how much room for development is there in the future, and what is the direction of civilization?
Recently, some netizens asked: Has the development of human science and technology reached the limit? Do friends who hold this view feel too comfortable now that they have such an idea? So how big is the future development space of science and technology, let's discuss together.
A second home close at hand? The probe sent back data that the planet is rich in groundwater ice
On the Mauna Loa volcano in Hawaii, USA, there is a habitat and research station HI-SEAS for simulating the environment of the moon and Mars. Here, researchers live and work in this habitat and research station for several days each time. to several months. During the experiment, when researchers leave the research station for "extravehicular" activities, they need to wear heavy simulated space suits to simulate future life and work on the surface of the moon or Mars. Although this research station is only 110 square meters, it can meet the needs of these "astronauts" for living and research work. The reason why these experiments are carried out here is to prepare for future missions to the moon and Mars.
Summer and autumn droughts in part of the Yangtze River: US satellites have observed Poyang Lake many times. How big is the impact of the drought?
Since the summer of 2022, the northern hemisphere can be said to have encountered the earth - like the "prehistoric climate change", many areas have experienced historic high temperatures and droughts. For example, Europe has suffered the strongest drought in at least 500 years, and my country's Chongqing has suffered. The rare high temperature of 45 degrees, etc., all show that the climate in 2022 is really changing.
Mondeo's August sales fell slightly month-on-month. Can this American muscle car maintain its popularity?
Mondeo sales in August were 5,992 units, down 6.46% month-on-month. The magnitude is not large, but it is not a good momentum, because August is the warm-up stage of the hot-selling season of cars, and the vehicles of the first-tier brands are basically rising; so the trend of Mondeo still does not seem to be ideal, but this larger size, Why is it still difficult to counterattack a car that has raised the "fat change" standard and sold at a reduced price?
In the universe, this black hole has disappeared, and astronomers are full of controversy
Introduction: Astronomers are looking for the traces of pearls one by one. This black hole should be located in the center of a galaxy 27 million light-years away from the earth. The motion and huge mass of surrounding celestial bodies indicate that there should be a supermassive black hole in its center. However, several data collection methods such as Hubble and Chandra Telescope have been used to find the location of this black hole. It is speculated that there are two possibilities. One is that there is not enough material around the black hole to swallow it, so it cannot be perceived. Gravitational waves from the merger of massive black holes push black holes that should be in the middle of galaxies out into outer space.
Musk accelerates Mars immigration plan and says: It is honorable for the first inhabitants to sacrifice on Mars
Some time ago, Elon Musk, CEO of Space Exploration Technology, once again made a surprising statement in an interview. He said that on the first human journey to Mars, we must be prepared for sacrifice. Death is inevitable, and It will be a glorious adventure, although sacrificed, but the name can go down in history forever. But is the risk really worth it?