Science
The unsolved mystery that has plagued scientists for 200 years
I'm sure we all have the experience of riding a bicycle. The structure of a bicycle is very simple, frame, tires, pedals, chain, brakes, all these things are reasonably assembled enough to keep us balanced during the riding process. But have you ever thought about why a bicycle can be balanced during a ride instead of falling over?
By Karen Gillanah3 years ago in Earth
A civilization 500 years behind mankind
For humans 500 years ago, the strength of modern humans can be said to be the crushing level of existence, so if someone asks, if a civilization found in the solar system 500 years behind the human race, how should humans respond? I believe that many people first thought of the answer is to conquer, but think carefully you will realize that this is not feasible.
By Robert Jack3 years ago in Earth
The most distant object visible to the naked eye
When we look up at the sky full of stars, we will always be fascinated by the vastness of the universe, but what you may not know is that the stars we see are not as far away as we think most of the celestial bodies visible to the naked eye in the night sky are not more than 1000 light years away from the Earth.
By Robert Jack3 years ago in Earth
Fly from Earth to Venus in 100 days
The dream of mankind is the sea of stars, and the first step to realizing this dream should be to land on other planets, even if mankind cannot go there personally, it is possible to launch some probes. In the solar system, Venus and Mars are both planets adjacent to the Earth, where the closest distance between Venus and the Earth is about 40.5 million kilometers, while the closest distance between Mars and the Earth is about 55 million kilometers.
By Robert Jack3 years ago in Earth
The earth is spinning slower and slower
On a cosmic scale, the Earth not only rotates around the Sun at all times but also rotates itself at all times. Rotation brings many natural phenomena to human beings on Earth: day and night, deflection of horizontal movement of objects, the difference in local time by one hour every 15 degrees of longitude, and so on.
By Karen Gillanah3 years ago in Earth
The average temperature of the universe is only -270.42°C
There are a huge number of stars in the universe, each of which can be considered a hot "ball of fire" that emits a lot of light and heat into the cosmic space every moment. It is easy to think that the universe as a whole should be warm, but this is not the case, because according to scientists' estimates, the average temperature of the universe is only -270.42°C.
By Robert Jack3 years ago in Earth
DNA found in meteorites
For humans, outer space has always had a strong attraction, and scientists, who are passionate about it, have been tirelessly searching for answers to those mysteries, but most are convinced that the Earth is the only planet in the universe that can support human life.
By Karen Gillanah3 years ago in Earth
“Meat the Future” Takes Viewers to the Meat-Growing Lab
According to the USDA, the average American consumed an estimated 144 pounds of meat in 2017. Although plant-based products have soared in popularity since hitting mainstream markets, it seems Americans are far from willing to give up meat entirely. Which is why a team of scientists at Upside Foods (formerly known as Memphis Meats) have set out to make cultivated meat the new norm.
By lupu alexandra3 years ago in Earth
Do You Know Where Your Water Comes From?
It wasn’t until she was 26 and had one degree in environmental science and another in water recycling that Nina Gordon-Kirsch learned where the water in her faucet came from. The Mokelumne River, which carries snowmelt from the Sierra through the Central Valley and out to the San Francisco Bay delta, is surprisingly little-known considering how many lives depend on it.
By lupu alexandra3 years ago in Earth
Climate activists make their presence known at COP26
The international COP26 climate conference, seen by many as the last chance to establish a climate agenda that will curb global temperature rise, is more than halfway over. Only a few days remain for the world’s most prominent political, economic, and environmental leaders to commit to transitioning the world away from fossil fuels.
By lupu alexandra3 years ago in Earth
