Science
Earth's "twin brother"
Even though there are many celestial bodies in the universe, there are only a few like Earth that can nurture life. The resources on Earth are limited, and it will one day reach the limit of the life it can carry. The search for a second home has become a special mission, not just for one person, but a challenge for all mankind.
By Karen Gillanah4 years ago in Earth
If the sun suddenly disappears
What would happen to the Earth if the sun suddenly disappeared? The answer is, of course, the Earth will undergo great changes, but at the moment of the disappearance of the sun, the Earth will not immediately change, because the speed of propagation of the sun's light and gravity is the speed of light, about 300,000 kilometers per second, and the average distance between the Earth and the sun is about 150 million kilometers, so in about 500 seconds, the Earth's great changes will begin, and from then on the prelude to the difficult survival of mankind.
By Robert Jack4 years ago in Earth
The world we live in could be a virtual broadcast
Our human perception of the outside world is the result of our brain's processing of various bioelectric signals, for example, our visual system will convert the external light into bioelectric signals, and then these signals will be transmitted to the brain, after the brain's processing, we "see" the external situation, and similarly, our Hearing, touch, smell, and taste are also produced in this way.
By Robert Jack4 years ago in Earth
Gold can be extracted from corn
Gold, in many ways, is an existence unmatched by anything else. In the beginning, the main role of gold was to decorate, and its great density and lustrous appearance made it a sought-after object; when gold appeared in the form of money, it became the most valuable existence.
By Karen Gillanah4 years ago in Earth
How scary is Japan's Mount Fuji
Mount Fuji in Japan, is a world-famous scenic spot and is also an active volcano, recently, there is news that Mount Fuji seems to be a bit stupid, which undoubtedly triggered people's concern, then Mount Fuji in the end how scary? If Mount Fuji erupts, how serious are the consequences? Let's talk about this topic below.
By Robert Jack4 years ago in Earth
The nature of tomatoes has changed
Tomatoes are very common in life, whether fried or raw very suitable, and because of their whitening and antioxidant effect, but in recent years, more and more people can not help but feel that tomatoes have not been delicious in the past, why is this?
By Karen Gillanah4 years ago in Earth
Why no advanced civilizations have visited Earth
The Earth was born about 4.55 billion years ago, and over a long period, life on Earth has gone through a process from nothing to something, from simple to complex, and finally evolved into humans with higher intelligence.
By Robert Jack4 years ago in Earth
Samsara IV before it became dark
Every shining star in the universe will one day go out, and its "lifespan" is closely related to its mass, the more massive the star, the shorter its "lifespan". For example, the "lifetime" of a Proxima star is about 12.2% of the Sun's mass, and its "lifetime" can be trillions of years, while the Sun's "lifetime" is only about 10 billion years, and the "lifetime" of stars that are much larger than the Sun is even shorter.
By Robert Jack4 years ago in Earth
"Interstellar Visitor" Oromo
Since the advent of the era of peaceful development, mankind has been exploring space for decades. Although the knowledge about space is still insignificant in the vastness of the universe, some information about the moon, the sun, and the solar system is available. However, some information about the Moon, the Sun, and the solar system has gradually become clear.
By Karen Gillanah4 years ago in Earth
